Initial version of sl1 import with sla::Raster refactor.

This commit is contained in:
tamasmeszaros 2020-04-13 12:31:37 +02:00
parent 6eb51a1cca
commit 247fca6d55
39 changed files with 2136 additions and 1094 deletions

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@ -42,6 +42,7 @@
#include "libslic3r/Format/3mf.hpp"
#include "libslic3r/Format/STL.hpp"
#include "libslic3r/Format/OBJ.hpp"
#include "libslic3r/Format/SL1.hpp"
#include "libslic3r/Utils.hpp"
#include "PrusaSlicer.hpp"
@ -422,7 +423,8 @@ int CLI::run(int argc, char **argv)
std::string outfile = m_config.opt_string("output");
Print fff_print;
SLAPrint sla_print;
SL1Archive sla_archive(sla_print.printer_config());
sla_print.set_printer(&sla_archive);
sla_print.set_status_callback(
[](const PrintBase::SlicingStatus& s)
{
@ -462,7 +464,7 @@ int CLI::run(int argc, char **argv)
outfile = sla_print.output_filepath(outfile);
// We need to finalize the filename beforehand because the export function sets the filename inside the zip metadata
outfile_final = sla_print.print_statistics().finalize_output_path(outfile);
sla_print.export_raster(outfile_final);
sla_archive.export_print(outfile_final, sla_print);
}
if (outfile != outfile_final && Slic3r::rename_file(outfile, outfile_final)) {
boost::nowide::cerr << "Renaming file " << outfile << " to " << outfile_final << " failed" << std::endl;

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@ -77,6 +77,8 @@ add_library(libslic3r STATIC
Format/PRUS.hpp
Format/STL.cpp
Format/STL.hpp
Format/SL1.hpp
Format/SL1.cpp
GCode/Analyzer.cpp
GCode/Analyzer.hpp
GCode/ThumbnailData.cpp
@ -162,6 +164,8 @@ add_library(libslic3r STATIC
SLAPrint.hpp
Slicing.cpp
Slicing.hpp
SlicesToTriangleMesh.hpp
SlicesToTriangleMesh.cpp
SlicingAdaptive.cpp
SlicingAdaptive.hpp
SupportMaterial.cpp
@ -177,6 +181,8 @@ add_library(libslic3r STATIC
Tesselate.hpp
TriangleMesh.cpp
TriangleMesh.hpp
TriangulateWall.hpp
TriangulateWall.cpp
utils.cpp
Utils.hpp
Time.cpp
@ -191,6 +197,7 @@ add_library(libslic3r STATIC
SimplifyMesh.hpp
SimplifyMeshImpl.hpp
SimplifyMesh.cpp
MarchingSquares.hpp
${OpenVDBUtils_SOURCES}
SLA/Common.hpp
SLA/Common.cpp
@ -208,10 +215,11 @@ add_library(libslic3r STATIC
SLA/Rotfinder.cpp
SLA/BoostAdapter.hpp
SLA/SpatIndex.hpp
SLA/Raster.hpp
SLA/Raster.cpp
SLA/RasterWriter.hpp
SLA/RasterWriter.cpp
SLA/RasterBase.hpp
SLA/RasterBase.cpp
SLA/AGGRaster.hpp
SLA/RasterToPolygons.hpp
SLA/RasterToPolygons.cpp
SLA/ConcaveHull.hpp
SLA/ConcaveHull.cpp
SLA/Hollowing.hpp

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@ -0,0 +1,171 @@
#include "SL1.hpp"
#include "GCode/ThumbnailData.hpp"
#include "libslic3r/Time.hpp"
#include <boost/log/trivial.hpp>
#include <boost/filesystem.hpp>
#include "libslic3r/Zipper.hpp"
#include "libslic3r/SLAPrint.hpp"
namespace Slic3r {
using ConfMap = std::map<std::string, std::string>;
namespace {
std::string to_ini(const ConfMap &m)
{
std::string ret;
for (auto &param : m) ret += param.first + " = " + param.second + "\n";
return ret;
}
std::string get_cfg_value(const DynamicPrintConfig &cfg, const std::string &key)
{
std::string ret;
if (cfg.has(key)) {
auto opt = cfg.option(key);
if (opt) ret = opt->serialize();
}
return ret;
}
void fill_iniconf(ConfMap &m, const SLAPrint &print)
{
auto &cfg = print.full_print_config();
m["layerHeight"] = get_cfg_value(cfg, "layer_height");
m["expTime"] = get_cfg_value(cfg, "exposure_time");
m["expTimeFirst"] = get_cfg_value(cfg, "initial_exposure_time");
m["materialName"] = get_cfg_value(cfg, "sla_material_settings_id");
m["printerModel"] = get_cfg_value(cfg, "printer_model");
m["printerVariant"] = get_cfg_value(cfg, "printer_variant");
m["printerProfile"] = get_cfg_value(cfg, "printer_settings_id");
m["printProfile"] = get_cfg_value(cfg, "sla_print_settings_id");
m["fileCreationTimestamp"] = Utils::utc_timestamp();
m["prusaSlicerVersion"] = SLIC3R_BUILD_ID;
SLAPrintStatistics stats = print.print_statistics();
// Set statistics values to the printer
double used_material = (stats.objects_used_material +
stats.support_used_material) / 1000;
int num_fade = print.default_object_config().faded_layers.getInt();
num_fade = num_fade >= 0 ? num_fade : 0;
m["usedMaterial"] = std::to_string(used_material);
m["numFade"] = std::to_string(num_fade);
m["numSlow"] = std::to_string(stats.slow_layers_count);
m["numFast"] = std::to_string(stats.fast_layers_count);
m["printTime"] = std::to_string(stats.estimated_print_time);
m["action"] = "print";
}
void fill_slicerconf(ConfMap &m, const SLAPrint &print)
{
using namespace std::literals::string_view_literals;
// Sorted list of config keys, which shall not be stored into the ini.
static constexpr auto banned_keys = {
"compatible_printers"sv,
"compatible_prints"sv,
"print_host"sv,
"printhost_apikey"sv,
"printhost_cafile"sv
};
assert(std::is_sorted(banned_keys.begin(), banned_keys.end()));
auto is_banned = [](const std::string &key) {
return std::binary_search(banned_keys.begin(), banned_keys.end(), key);
};
auto &cfg = print.full_print_config();
for (const std::string &key : cfg.keys())
if (! is_banned(key) && ! cfg.option(key)->is_nil())
m[key] = cfg.opt_serialize(key);
}
} // namespace
uqptr<sla::RasterBase> SL1Archive::create_raster() const
{
sla::RasterBase::Resolution res;
sla::RasterBase::PixelDim pxdim;
std::array<bool, 2> mirror;
double w = m_cfg.display_width.getFloat();
double h = m_cfg.display_height.getFloat();
auto pw = size_t(m_cfg.display_pixels_x.getInt());
auto ph = size_t(m_cfg.display_pixels_y.getInt());
mirror[X] = m_cfg.display_mirror_x.getBool();
mirror[Y] = m_cfg.display_mirror_y.getBool();
auto ro = m_cfg.display_orientation.getInt();
sla::RasterBase::Orientation orientation =
ro == sla::RasterBase::roPortrait ? sla::RasterBase::roPortrait :
sla::RasterBase::roLandscape;
if (orientation == sla::RasterBase::roPortrait) {
std::swap(w, h);
std::swap(pw, ph);
}
res = sla::RasterBase::Resolution{pw, ph};
pxdim = sla::RasterBase::PixelDim{w / pw, h / ph};
sla::RasterBase::Trafo tr{orientation, mirror};
double gamma = m_cfg.gamma_correction.getFloat();
return sla::create_raster_grayscale_aa(res, pxdim, gamma, tr);
}
sla::EncodedRaster SL1Archive::encode_raster(const sla::RasterBase &rst) const
{
return rst.encode(sla::PNGRasterEncoder());
}
void SL1Archive::export_print(Zipper& zipper,
const SLAPrint &print,
const std::string &prjname)
{
std::string project =
prjname.empty() ?
boost::filesystem::path(zipper.get_filename()).stem().string() :
prjname;
ConfMap iniconf, slicerconf;
fill_iniconf(iniconf, print);
iniconf["jobDir"] = project;
fill_slicerconf(slicerconf, print);
try {
zipper.add_entry("config.ini");
zipper << to_ini(iniconf);
zipper.add_entry("prusaslicer.ini");
zipper << to_ini(slicerconf);
size_t i = 0;
for (const sla::EncodedRaster &rst : m_layers) {
std::string imgname = project + string_printf("%.5d", i++) + "." +
rst.extension();
zipper.add_entry(imgname.c_str(), rst.data(), rst.size());
}
} catch(std::exception& e) {
BOOST_LOG_TRIVIAL(error) << e.what();
// Rethrow the exception
throw;
}
}
} // namespace Slic3r

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@ -0,0 +1,44 @@
#ifndef ARCHIVETRAITS_HPP
#define ARCHIVETRAITS_HPP
#include <string>
#include "libslic3r/Zipper.hpp"
#include "libslic3r/SLAPrint.hpp"
namespace Slic3r {
class SL1Archive: public SLAPrinter {
SLAPrinterConfig m_cfg;
protected:
uqptr<sla::RasterBase> create_raster() const override;
sla::EncodedRaster encode_raster(const sla::RasterBase &rst) const override;
public:
SL1Archive() = default;
explicit SL1Archive(const SLAPrinterConfig &cfg): m_cfg(cfg) {}
explicit SL1Archive(SLAPrinterConfig &&cfg): m_cfg(std::move(cfg)) {}
void export_print(Zipper &zipper, const SLAPrint &print, const std::string &projectname = "");
void export_print(const std::string &fname, const SLAPrint &print, const std::string &projectname = "")
{
Zipper zipper(fname);
export_print(zipper, print, projectname);
}
void apply(const SLAPrinterConfig &cfg) override
{
auto diff = m_cfg.diff(cfg);
if (!diff.empty()) {
m_cfg.apply_only(cfg, diff);
m_layers = {};
}
}
};
} // namespace Slic3r::sla
#endif // ARCHIVETRAITS_HPP

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@ -126,10 +126,10 @@ inline IntegerOnly<I, std::vector<T, Args...>> reserve_vector(I capacity)
}
/// Exactly like Matlab https://www.mathworks.com/help/matlab/ref/linspace.html
template<class T, class I>
template<class T, class I, class = IntegerOnly<I>>
inline std::vector<T> linspace_vector(const ArithmeticOnly<T> &start,
const T &stop,
const IntegerOnly<I> &n)
const I &n)
{
std::vector<T> vals(n, T());

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@ -0,0 +1,432 @@
#ifndef MARCHINGSQUARES_HPP
#define MARCHINGSQUARES_HPP
#include <type_traits>
#include <cstdint>
#include <vector>
#include <algorithm>
#include <cassert>
namespace marchsq {
// Marks a square in the grid
struct Coord {
size_t r = 0, c = 0;
Coord() = default;
explicit Coord(size_t s) : r(s), c(s) {}
Coord(size_t _r, size_t _c): r(_r), c(_c) {}
size_t seq(const Coord &res) const { return r * res.c + c; }
Coord& operator+=(const Coord& b) { r += b.r; c += b.c; return *this; }
Coord operator+(const Coord& b) const { Coord a = *this; a += b; return a; }
};
// Closed ring of cell coordinates
using Ring = std::vector<Coord>;
// Specialize this struct to register a raster type for the Marching squares alg
template<class T, class Enable = void> struct _RasterTraits {
// The type of pixel cell in the raster
using ValueType = typename T::ValueType;
// Value at a given position
static ValueType get(const T &raster, size_t row, size_t col);
// Number of rows and cols of the raster
static size_t rows(const T &raster);
static size_t cols(const T &raster);
};
// Specialize this to use parellel loops within the algorithm
template<class ExecutionPolicy, class Enable = void> struct _Loop {
template<class It, class Fn> static void for_each(It from, It to, Fn &&fn)
{
for (auto it = from; it < to; ++it) fn(*it, size_t(it - from));
}
};
namespace __impl {
template<class T> using RasterTraits = _RasterTraits<std::decay_t<T>>;
template<class T> using TRasterValue = typename RasterTraits<T>::ValueType;
template<class T> TRasterValue<T> isoval(const T &raster, const Coord &crd)
{
return RasterTraits<T>::get(raster, crd.r, crd.c);
}
template<class T> size_t rows(const T &raster)
{
return RasterTraits<T>::rows(raster);
}
template<class T> size_t cols(const T &raster)
{
return RasterTraits<T>::cols(raster);
}
template<class ExecutionPolicy, class It, class Fn>
void for_each(ExecutionPolicy&& policy, It from, It to, Fn &&fn)
{
_Loop<ExecutionPolicy>::for_each(from, to, fn);
}
// Type of squares (tiles) depending on which vertices are inside an ROI
// The vertices would be marked a, b, c, d in counter clockwise order from the
// bottom left vertex of a square.
// d --- c
// | |
// | |
// a --- b
enum class SquareTag : uint8_t {
// 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
none, a, b, ab, c, ac, bc, abc, d, ad, bd, abd, cd, acd, bcd, full
};
template<class E> constexpr std::underlying_type_t<E> _t(E e) noexcept
{
return static_cast<std::underlying_type_t<E>>(e);
}
enum class Dir: uint8_t { left, down, right, up, none};
static const constexpr Dir NEXT_CCW[] = {
/* 00 */ Dir::none, // SquareTag::none (empty square, nowhere to go)
/* 01 */ Dir::left, // SquareTag::a
/* 02 */ Dir::down, // SquareTag::b
/* 03 */ Dir::left, // SquareTag::ab
/* 04 */ Dir::right, // SquareTag::c
/* 05 */ Dir::none, // SquareTag::ac (ambiguous case)
/* 06 */ Dir::down, // SquareTag::bc
/* 07 */ Dir::left, // SquareTag::abc
/* 08 */ Dir::up, // SquareTag::d
/* 09 */ Dir::up, // SquareTag::ad
/* 10 */ Dir::none, // SquareTag::bd (ambiguous case)
/* 11 */ Dir::up, // SquareTag::abd
/* 12 */ Dir::right, // SquareTag::cd
/* 13 */ Dir::right, // SquareTag::acd
/* 14 */ Dir::down, // SquareTag::bcd
/* 15 */ Dir::none // SquareTag::full (full covered, nowhere to go)
};
static const constexpr uint8_t PREV_CCW[] = {
/* 00 */ 1 << _t(Dir::none),
/* 01 */ 1 << _t(Dir::up),
/* 02 */ 1 << _t(Dir::left),
/* 03 */ 1 << _t(Dir::left),
/* 04 */ 1 << _t(Dir::down),
/* 05 */ 1 << _t(Dir::up) | 1 << _t(Dir::down),
/* 06 */ 1 << _t(Dir::down),
/* 07 */ 1 << _t(Dir::down),
/* 08 */ 1 << _t(Dir::right),
/* 09 */ 1 << _t(Dir::up),
/* 10 */ 1 << _t(Dir::left) | 1 << _t(Dir::right),
/* 11 */ 1 << _t(Dir::left),
/* 12 */ 1 << _t(Dir::right),
/* 13 */ 1 << _t(Dir::up),
/* 14 */ 1 << _t(Dir::right),
/* 15 */ 1 << _t(Dir::none)
};
const constexpr uint8_t DIRMASKS[] = {
/*left: */ 0x01, /*down*/ 0x12, /*right */0x21, /*up*/ 0x10, /*none*/ 0x00
};
inline Coord step(const Coord &crd, Dir d)
{
uint8_t dd = DIRMASKS[uint8_t(d)];
return {crd.r - 1 + (dd & 0x0f), crd.c - 1 + (dd >> 4)};
}
template<class Rst> class Grid {
const Rst * m_rst = nullptr;
Coord m_cellsize, m_res_1, m_window, m_gridsize;
std::vector<uint8_t> m_tags; // Assign tags to each square
Coord rastercoord(const Coord &crd) const
{
return {crd.r * m_window.r, crd.c * m_window.c};
}
Coord bl(const Coord &crd) const { return tl(crd) + Coord{m_res_1.r, 0}; }
Coord br(const Coord &crd) const { return tl(crd) + Coord{m_res_1.r, m_res_1.c}; }
Coord tr(const Coord &crd) const { return tl(crd) + Coord{0, m_res_1.c}; }
Coord tl(const Coord &crd) const { return rastercoord(crd); }
TRasterValue<Rst> bottomleft(const Coord &cell) const
{
return isoval(*m_rst, bl(cell));
}
TRasterValue<Rst> bottomright(const Coord &cell) const
{
return isoval(*m_rst, br(cell));
}
TRasterValue<Rst> topright(const Coord &cell) const
{
return isoval(*m_rst, tr(cell));
}
TRasterValue<Rst> topleft(const Coord &cell) const
{
return isoval(*m_rst, tl(cell));
}
// Calculate the tag for a cell (or square). The cell coordinates mark the
// top left vertex of a square in the raster. v is the isovalue
uint8_t get_tag_for_cell(const Coord &cell, TRasterValue<Rst> v)
{
uint8_t t = (bottomleft(cell) >= v) +
((bottomright(cell) >= v) << 1) +
((topright(cell) >= v) << 2) +
((topleft(cell) >= v) << 3);
assert(t < 16);
return t;
}
// Get a cell coordinate from a sequential index
Coord coord(size_t i) const { return {i / m_gridsize.c, i % m_gridsize.c}; }
size_t seq(const Coord &crd) const { return crd.seq(m_gridsize); }
bool is_visited(size_t idx, Dir d = Dir::none) const
{
SquareTag t = get_tag(idx);
uint8_t ref = d == Dir::none ? PREV_CCW[_t(t)] : uint8_t(1 << _t(d));
return t == SquareTag::full || t == SquareTag::none ||
((m_tags[idx] & 0xf0) >> 4) == ref;
}
void set_visited(size_t idx, Dir d = Dir::none)
{
m_tags[idx] |= (1 << (_t(d)) << 4);
}
bool is_ambiguous(size_t idx) const
{
SquareTag t = get_tag(idx);
return t == SquareTag::ac || t == SquareTag::bd;
}
// Search for a new starting square
size_t search_start_cell(size_t i = 0) const
{
// Skip ambiguous tags as starting tags due to unknown previous
// direction.
while ((i < m_tags.size() && is_visited(i)) || is_ambiguous(i)) ++i;
return i;
}
SquareTag get_tag(size_t idx) const { return SquareTag(m_tags[idx] & 0x0f); }
Dir next_dir(Dir prev, SquareTag tag) const
{
// Treat ambiguous cases as two separate regions in one square.
switch (tag) {
case SquareTag::ac:
switch (prev) {
case Dir::down: return Dir::right;
case Dir::up: return Dir::left;
default: assert(false); return Dir::none;
}
case SquareTag::bd:
switch (prev) {
case Dir::right: return Dir::up;
case Dir::left: return Dir::down;
default: assert(false); return Dir::none;
}
default:
return NEXT_CCW[uint8_t(tag)];
}
return Dir::none;
}
struct CellIt {
Coord crd; Dir dir= Dir::none; const Rst *rst = nullptr;
TRasterValue<Rst> operator*() const { return isoval(*rst, crd); }
CellIt& operator++() { crd = step(crd, dir); return *this; }
CellIt operator++(int) { CellIt it = *this; ++(*this); return it; }
bool operator!=(const CellIt &it) { return crd.r != it.crd.r || crd.c != it.crd.c; }
using value_type = TRasterValue<Rst>;
using pointer = TRasterValue<Rst> *;
using reference = TRasterValue<Rst> &;
using difference_type = long;
using iterator_category = std::forward_iterator_tag;
};
// Two cell iterators representing an edge of a square. This is then
// used for binary search for the first active pixel on the edge.
struct Edge { CellIt from, to; };
Edge edge(const Coord &ringvertex)
{
size_t idx = ringvertex.r;
Coord cell = coord(idx);
uint8_t tg = m_tags[ringvertex.r];
SquareTag t = SquareTag(tg & 0x0f);
switch (t) {
case SquareTag::a:
case SquareTag::ab:
case SquareTag::abc:
return {{tl(cell), Dir::down, m_rst}, {bl(cell)}};
case SquareTag::b:
case SquareTag::bc:
case SquareTag::bcd:
return {{bl(cell), Dir::right, m_rst}, {br(cell)}};
case SquareTag::c:
return {{br(cell), Dir::up, m_rst}, {tr(cell)}};
case SquareTag::ac:
switch (Dir(ringvertex.c)) {
case Dir::left: return {{tl(cell), Dir::down, m_rst}, {bl(cell)}};
case Dir::right: return {{br(cell), Dir::up, m_rst}, {tr(cell)}};
default: assert(false);
}
case SquareTag::d:
case SquareTag::ad:
case SquareTag::abd:
return {{tr(cell), Dir::left, m_rst}, {tl(cell)}};
case SquareTag::bd:
switch (Dir(ringvertex.c)) {
case Dir::down: return {{bl(cell), Dir::right, m_rst}, {br(cell)}};
case Dir::up: return {{tr(cell), Dir::left, m_rst}, {tl(cell)}};
default: assert(false);
}
case SquareTag::cd:
case SquareTag::acd:
return {{br(cell), Dir::up, m_rst}, {tr(cell)}};
case SquareTag::full:
case SquareTag::none: {
Coord crd{tl(cell) + Coord{m_cellsize.r / 2, m_cellsize.c / 2}};
return {{crd, Dir::none, m_rst}, crd};
}
}
return {};
}
public:
explicit Grid(const Rst &rst, const Coord &cellsz, const Coord &overlap)
: m_rst{&rst}
, m_cellsize{cellsz}
, m_res_1{m_cellsize.r - 1, m_cellsize.c - 1}
, m_window{overlap.r < cellsz.r ? cellsz.r - overlap.r : cellsz.r,
overlap.c < cellsz.c ? cellsz.c - overlap.c : cellsz.c}
, m_gridsize{(rows(rst) - overlap.r) / m_window.r,
(cols(rst) - overlap.c) / m_window.c}
, m_tags(m_gridsize.r * m_gridsize.c, 0)
{}
// Go through the cells and mark them with the appropriate tag.
template<class ExecutionPolicy>
void tag_grid(ExecutionPolicy &&policy, TRasterValue<Rst> isoval)
{
// parallel for r
for_each (std::forward<ExecutionPolicy>(policy),
m_tags.begin(), m_tags.end(),
[this, isoval](uint8_t& tag, size_t idx) {
tag = get_tag_for_cell(coord(idx), isoval);
});
}
// Scan for the rings on the tagged grid. Each ring vertex stores the
// sequential index of the cell and the next direction (Dir).
// This info can be used later to calculate the exact raster coordinate.
std::vector<Ring> scan_rings()
{
std::vector<Ring> rings;
size_t startidx = 0;
while ((startidx = search_start_cell(startidx)) < m_tags.size()) {
Ring ring;
size_t idx = startidx;
Dir prev = Dir::none, next = next_dir(prev, get_tag(idx));
while (next != Dir::none && !is_visited(idx, prev)) {
Coord ringvertex{idx, size_t(next)};
ring.emplace_back(ringvertex);
set_visited(idx, prev);
idx = seq(step(coord(idx), next));
prev = next;
next = next_dir(next, get_tag(idx));
}
// To prevent infinite loops in case of degenerate input
if (next == Dir::none) m_tags[startidx] = _t(SquareTag::none);
if (ring.size() > 1) {
ring.pop_back();
rings.emplace_back(ring);
}
}
return rings;
}
// Calculate the exact raster position from the cells which store the
// sequantial index of the square and the next direction
template<class ExecutionPolicy>
void interpolate_rings(ExecutionPolicy && policy,
std::vector<Ring> &rings,
TRasterValue<Rst> isov)
{
for_each(std::forward<ExecutionPolicy>(policy),
rings.begin(), rings.end(), [this, isov] (Ring &ring, size_t) {
for (Coord &ringvertex : ring) {
Edge e = edge(ringvertex);
CellIt found = std::lower_bound(e.from, e.to, isov);
ringvertex = found.crd;
}
});
}
};
template<class Raster, class ExecutionPolicy>
std::vector<marchsq::Ring> execute_with_policy(ExecutionPolicy && policy,
const Raster & raster,
TRasterValue<Raster> isoval,
Coord windowsize = {})
{
if (!rows(raster) || !cols(raster)) return {};
size_t ratio = cols(raster) / rows(raster);
if (!windowsize.r) windowsize.r = 2;
if (!windowsize.c)
windowsize.c = std::max(size_t(2), windowsize.r * ratio);
Coord overlap{1};
Grid<Raster> grid{raster, windowsize, overlap};
grid.tag_grid(std::forward<ExecutionPolicy>(policy), isoval);
std::vector<marchsq::Ring> rings = grid.scan_rings();
grid.interpolate_rings(std::forward<ExecutionPolicy>(policy), rings, isoval);
return rings;
}
template<class Raster>
std::vector<marchsq::Ring> execute(const Raster &raster,
TRasterValue<Raster> isoval,
Coord windowsize = {})
{
return execute_with_policy(nullptr, raster, isoval, windowsize);
}
} // namespace __impl
using __impl::execute_with_policy;
using __impl::execute;
} // namespace marchsq
#endif // MARCHINGSQUARES_HPP

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@ -0,0 +1,222 @@
#ifndef AGGRASTER_HPP
#define AGGRASTER_HPP
#include <libslic3r/SLA/RasterBase.hpp>
#include "libslic3r/ExPolygon.hpp"
#include "libslic3r/MTUtils.hpp"
#include <libnest2d/backends/clipper/clipper_polygon.hpp>
// For rasterizing
#include <agg/agg_basics.h>
#include <agg/agg_rendering_buffer.h>
#include <agg/agg_pixfmt_gray.h>
#include <agg/agg_pixfmt_rgb.h>
#include <agg/agg_renderer_base.h>
#include <agg/agg_renderer_scanline.h>
#include <agg/agg_scanline_p.h>
#include <agg/agg_rasterizer_scanline_aa.h>
#include <agg/agg_path_storage.h>
namespace Slic3r {
inline const Polygon& contour(const ExPolygon& p) { return p.contour; }
inline const ClipperLib::Path& contour(const ClipperLib::Polygon& p) { return p.Contour; }
inline const Polygons& holes(const ExPolygon& p) { return p.holes; }
inline const ClipperLib::Paths& holes(const ClipperLib::Polygon& p) { return p.Holes; }
namespace sla {
template<class Color> struct Colors {
static const Color White;
static const Color Black;
};
template<class Color> const Color Colors<Color>::White = Color{255};
template<class Color> const Color Colors<Color>::Black = Color{0};
template<class PixelRenderer,
template<class /*agg::renderer_base<PixelRenderer>*/> class Renderer,
class Rasterizer = agg::rasterizer_scanline_aa<>,
class Scanline = agg::scanline_p8>
class AGGRaster: public RasterBase {
public:
using TColor = typename PixelRenderer::color_type;
using TValue = typename TColor::value_type;
using TPixel = typename PixelRenderer::pixel_type;
using TRawBuffer = agg::rendering_buffer;
protected:
Resolution m_resolution;
PixelDim m_pxdim_scaled; // used for scaled coordinate polygons
std::vector<TPixel> m_buf;
agg::rendering_buffer m_rbuf;
PixelRenderer m_pixrenderer;
agg::renderer_base<PixelRenderer> m_raw_renderer;
Renderer<agg::renderer_base<PixelRenderer>> m_renderer;
Trafo m_trafo;
Scanline m_scanlines;
Rasterizer m_rasterizer;
void flipy(agg::path_storage &path) const
{
path.flip_y(0, double(m_resolution.height_px));
}
void flipx(agg::path_storage &path) const
{
path.flip_x(0, double(m_resolution.width_px));
}
double getPx(const Point &p) { return p(0) * m_pxdim_scaled.w_mm; }
double getPy(const Point &p) { return p(1) * m_pxdim_scaled.h_mm; }
agg::path_storage to_path(const Polygon &poly) { return to_path(poly.points); }
double getPx(const ClipperLib::IntPoint &p) { return p.X * m_pxdim_scaled.w_mm; }
double getPy(const ClipperLib::IntPoint& p) { return p.Y * m_pxdim_scaled.h_mm; }
template<class PointVec> agg::path_storage _to_path(const PointVec& v)
{
agg::path_storage path;
auto it = v.begin();
path.move_to(getPx(*it), getPy(*it));
while(++it != v.end()) path.line_to(getPx(*it), getPy(*it));
path.line_to(getPx(v.front()), getPy(v.front()));
return path;
}
template<class PointVec> agg::path_storage _to_path_flpxy(const PointVec& v)
{
agg::path_storage path;
auto it = v.begin();
path.move_to(getPy(*it), getPx(*it));
while(++it != v.end()) path.line_to(getPy(*it), getPx(*it));
path.line_to(getPy(v.front()), getPx(v.front()));
return path;
}
template<class PointVec> agg::path_storage to_path(const PointVec &v)
{
auto path = m_trafo.flipXY ? _to_path_flpxy(v) : _to_path(v);
path.translate_all_paths(m_trafo.center_x * m_pxdim_scaled.w_mm,
m_trafo.center_y * m_pxdim_scaled.h_mm);
if(m_trafo.mirror_x) flipx(path);
if(m_trafo.mirror_y) flipy(path);
return path;
}
template<class P> void _draw(const P &poly)
{
m_rasterizer.reset();
m_rasterizer.add_path(to_path(contour(poly)));
for(auto& h : holes(poly)) m_rasterizer.add_path(to_path(h));
agg::render_scanlines(m_rasterizer, m_scanlines, m_renderer);
}
public:
template<class GammaFn> AGGRaster(const Resolution &res,
const PixelDim & pd,
const Trafo & trafo,
const TColor & foreground,
const TColor & background,
GammaFn && gammafn)
: m_resolution(res)
, m_pxdim_scaled(SCALING_FACTOR / pd.w_mm, SCALING_FACTOR / pd.h_mm)
, m_buf(res.pixels())
, m_rbuf(reinterpret_cast<TValue *>(m_buf.data()),
unsigned(res.width_px),
unsigned(res.height_px),
int(res.width_px *PixelRenderer::num_components))
, m_pixrenderer(m_rbuf)
, m_raw_renderer(m_pixrenderer)
, m_renderer(m_raw_renderer)
, m_trafo(trafo)
{
m_renderer.color(foreground);
clear(background);
m_rasterizer.gamma(gammafn);
}
Trafo trafo() const override { return m_trafo; }
Resolution resolution() const override { return m_resolution; }
PixelDim pixel_dimensions() const override
{
return {SCALING_FACTOR / m_pxdim_scaled.w_mm,
SCALING_FACTOR / m_pxdim_scaled.h_mm};
}
void draw(const ExPolygon &poly) override { _draw(poly); }
void draw(const ClipperLib::Polygon &poly) override { _draw(poly); }
EncodedRaster encode(RasterEncoder encoder) const override
{
return encoder(m_buf.data(), m_resolution.width_px, m_resolution.height_px, 1);
}
void clear(const TColor color) { m_raw_renderer.clear(color); }
};
/*
* Captures an anti-aliased monochrome canvas where vectorial
* polygons can be rasterized. Fill color is always white and the background is
* black. Contours are anti-aliased.
*
* A gamma function can be specified at compile time to make it more flexible.
*/
using _RasterGrayscaleAA =
AGGRaster<agg::pixfmt_gray8, agg::renderer_scanline_aa_solid>;
class RasterGrayscaleAA : public _RasterGrayscaleAA {
using Base = _RasterGrayscaleAA;
using typename Base::TColor;
using typename Base::TValue;
public:
template<class GammaFn>
RasterGrayscaleAA(const RasterBase::Resolution &res,
const RasterBase::PixelDim & pd,
const RasterBase::Trafo & trafo,
GammaFn && fn)
: Base(res, pd, trafo, Colors<TColor>::White, Colors<TColor>::Black,
std::forward<GammaFn>(fn))
{}
uint8_t read_pixel(size_t col, size_t row) const
{
static_assert(std::is_same<TValue, uint8_t>::value, "Not grayscale pix");
uint8_t px;
Base::m_buf[row * Base::resolution().width_px + col].get(px);
return px;
}
void clear() { Base::clear(Colors<TColor>::Black); }
};
class RasterGrayscaleAAGammaPower: public RasterGrayscaleAA {
public:
RasterGrayscaleAAGammaPower(const RasterBase::Resolution &res,
const RasterBase::PixelDim & pd,
const RasterBase::Trafo & trafo,
double gamma = 1.)
: RasterGrayscaleAA(res, pd, trafo, agg::gamma_power(gamma))
{}
};
}} // namespace Slic3r::sla
#endif // AGGRASTER_HPP

View File

@ -11,6 +11,8 @@
#include "Tesselate.hpp"
#include "MTUtils.hpp"
#include "TriangulateWall.hpp"
// For debugging:
// #include <fstream>
// #include <libnest2d/tools/benchmark.h>
@ -27,175 +29,17 @@ namespace Slic3r { namespace sla {
namespace {
/// This function will return a triangulation of a sheet connecting an upper
/// and a lower plate given as input polygons. It will not triangulate the
/// plates themselves only the sheet. The caller has to specify the lower and
/// upper z levels in world coordinates as well as the offset difference
/// between the sheets. If the lower_z_mm is higher than upper_z_mm or the
/// offset difference is negative, the resulting triangle orientation will be
/// reversed.
///
/// IMPORTANT: This is not a universal triangulation algorithm. It assumes
/// that the lower and upper polygons are offsetted versions of the same
/// original polygon. In general, it assumes that one of the polygons is
/// completely inside the other. The offset difference is the reference
/// distance from the inner polygon's perimeter to the outer polygon's
/// perimeter. The real distance will be variable as the clipper offset has
/// different strategies (rounding, etc...). This algorithm should have
/// O(2n + 3m) complexity where n is the number of upper vertices and m is the
/// number of lower vertices.
Contour3D walls(
const Polygon &lower,
const Polygon &upper,
double lower_z_mm,
double upper_z_mm,
double offset_difference_mm,
ThrowOnCancel thr = [] {})
double upper_z_mm)
{
Wall w = triangulate_wall(lower, upper, lower_z_mm, upper_z_mm);
Contour3D ret;
if(upper.points.size() < 3 || lower.size() < 3) return ret;
// The concept of the algorithm is relatively simple. It will try to find
// the closest vertices from the upper and the lower polygon and use those
// as starting points. Then it will create the triangles sequentially using
// an edge from the upper polygon and a vertex from the lower or vice versa,
// depending on the resulting triangle's quality.
// The quality is measured by a scalar value. So far it looks like it is
// enough to derive it from the slope of the triangle's two edges connecting
// the upper and the lower part. A reference slope is calculated from the
// height and the offset difference.
// Offset in the index array for the ceiling
const auto offs = upper.points.size();
// Shorthand for the vertex arrays
auto& upts = upper.points, &lpts = lower.points;
auto& rpts = ret.points; auto& ind = ret.faces3;
// If the Z levels are flipped, or the offset difference is negative, we
// will interpret that as the triangles normals should be inverted.
bool inverted = upper_z_mm < lower_z_mm || offset_difference_mm < 0;
// Copy the points into the mesh, convert them from 2D to 3D
rpts.reserve(upts.size() + lpts.size());
ind.reserve(2 * upts.size() + 2 * lpts.size());
for (auto &p : upts)
rpts.emplace_back(unscaled(p.x()), unscaled(p.y()), upper_z_mm);
for (auto &p : lpts)
rpts.emplace_back(unscaled(p.x()), unscaled(p.y()), lower_z_mm);
// Create pointing indices into vertex arrays. u-upper, l-lower
size_t uidx = 0, lidx = offs, unextidx = 1, lnextidx = offs + 1;
// Simple squared distance calculation.
auto distfn = [](const Vec3d& p1, const Vec3d& p2) {
auto p = p1 - p2; return p.transpose() * p;
};
// We need to find the closest point on lower polygon to the first point on
// the upper polygon. These will be our starting points.
double distmin = std::numeric_limits<double>::max();
for(size_t l = lidx; l < rpts.size(); ++l) {
thr();
double d = distfn(rpts[l], rpts[uidx]);
if(d < distmin) { lidx = l; distmin = d; }
}
// Set up lnextidx to be ahead of lidx in cyclic mode
lnextidx = lidx + 1;
if(lnextidx == rpts.size()) lnextidx = offs;
// This will be the flip switch to toggle between upper and lower triangle
// creation mode
enum class Proceed {
UPPER, // A segment from the upper polygon and one vertex from the lower
LOWER // A segment from the lower polygon and one vertex from the upper
} proceed = Proceed::UPPER;
// Flags to help evaluating loop termination.
bool ustarted = false, lstarted = false;
// The variables for the fitness values, one for the actual and one for the
// previous.
double current_fit = 0, prev_fit = 0;
// Every triangle of the wall has two edges connecting the upper plate with
// the lower plate. From the length of these two edges and the zdiff we
// can calculate the momentary squared offset distance at a particular
// position on the wall. The average of the differences from the reference
// (squared) offset distance will give us the driving fitness value.
const double offsdiff2 = std::pow(offset_difference_mm, 2);
const double zdiff2 = std::pow(upper_z_mm - lower_z_mm, 2);
// Mark the current vertex iterator positions. If the iterators return to
// the same position, the loop can be terminated.
size_t uendidx = uidx, lendidx = lidx;
do { thr(); // check throw if canceled
prev_fit = current_fit;
switch(proceed) { // proceed depending on the current state
case Proceed::UPPER:
if(!ustarted || uidx != uendidx) { // there are vertices remaining
// Get the 3D vertices in order
const Vec3d& p_up1 = rpts[uidx];
const Vec3d& p_low = rpts[lidx];
const Vec3d& p_up2 = rpts[unextidx];
// Calculate fitness: the average of the two connecting edges
double a = offsdiff2 - (distfn(p_up1, p_low) - zdiff2);
double b = offsdiff2 - (distfn(p_up2, p_low) - zdiff2);
current_fit = (std::abs(a) + std::abs(b)) / 2;
if(current_fit > prev_fit) { // fit is worse than previously
proceed = Proceed::LOWER;
} else { // good to go, create the triangle
inverted
? ind.emplace_back(int(unextidx), int(lidx), int(uidx))
: ind.emplace_back(int(uidx), int(lidx), int(unextidx));
// Increment the iterators, rotate if necessary
++uidx; ++unextidx;
if(unextidx == offs) unextidx = 0;
if(uidx == offs) uidx = 0;
ustarted = true; // mark the movement of the iterators
// so that the comparison to uendidx can be made correctly
}
} else proceed = Proceed::LOWER;
break;
case Proceed::LOWER:
// Mode with lower segment, upper vertex. Same structure:
if(!lstarted || lidx != lendidx) {
const Vec3d& p_low1 = rpts[lidx];
const Vec3d& p_low2 = rpts[lnextidx];
const Vec3d& p_up = rpts[uidx];
double a = offsdiff2 - (distfn(p_up, p_low1) - zdiff2);
double b = offsdiff2 - (distfn(p_up, p_low2) - zdiff2);
current_fit = (std::abs(a) + std::abs(b)) / 2;
if(current_fit > prev_fit) {
proceed = Proceed::UPPER;
} else {
inverted
? ind.emplace_back(int(uidx), int(lnextidx), int(lidx))
: ind.emplace_back(int(lidx), int(lnextidx), int(uidx));
++lidx; ++lnextidx;
if(lnextidx == rpts.size()) lnextidx = offs;
if(lidx == rpts.size()) lidx = offs;
lstarted = true;
}
} else proceed = Proceed::UPPER;
break;
} // end of switch
} while(!ustarted || !lstarted || uidx != uendidx || lidx != lendidx);
ret.points = std::move(w.first);
ret.faces3 = std::move(w.second);
return ret;
}
@ -203,10 +47,9 @@ Contour3D walls(
// Same as walls() but with identical higher and lower polygons.
Contour3D inline straight_walls(const Polygon &plate,
double lo_z,
double hi_z,
ThrowOnCancel thr)
double hi_z)
{
return walls(plate, plate, lo_z, hi_z, .0 /*offset_diff*/, thr);
return walls(plate, plate, lo_z, hi_z);
}
// Function to cut tiny connector cavities for a given polygon. The input poly
@ -534,10 +377,8 @@ bool add_cavity(Contour3D &pad, ExPolygon &top_poly, const PadConfig3D &cfg,
top_poly = pdiff.front();
double z_min = -cfg.wing_height, z_max = 0;
double offset_difference = -wing_distance;
pad.merge(walls(inner_base.contour, middle_base.contour, z_min, z_max,
offset_difference, thr));
pad.merge(walls(inner_base.contour, middle_base.contour, z_min, z_max));
thr();
pad.merge(triangulate_expolygon_3d(inner_base, z_min, NORMALS_UP));
return true;
@ -555,16 +396,16 @@ Contour3D create_outer_pad_geometry(const ExPolygons & skeleton,
offset_contour_only(pad_part, -scaled(cfg.bottom_offset()));
if (bottom_poly.empty()) continue;
thr();
double z_min = -cfg.height, z_max = 0;
ret.merge(walls(top_poly.contour, bottom_poly.contour, z_max, z_min,
cfg.bottom_offset(), thr));
ret.merge(walls(top_poly.contour, bottom_poly.contour, z_max, z_min));
if (cfg.wing_height > 0. && add_cavity(ret, top_poly, cfg, thr))
z_max = -cfg.wing_height;
for (auto &h : bottom_poly.holes)
ret.merge(straight_walls(h, z_max, z_min, thr));
ret.merge(straight_walls(h, z_max, z_min));
ret.merge(triangulate_expolygon_3d(bottom_poly, z_min, NORMALS_DOWN));
ret.merge(triangulate_expolygon_3d(top_poly, NORMALS_UP));
@ -581,10 +422,11 @@ Contour3D create_inner_pad_geometry(const ExPolygons & skeleton,
double z_max = 0., z_min = -cfg.height;
for (const ExPolygon &pad_part : skeleton) {
ret.merge(straight_walls(pad_part.contour, z_max, z_min,thr));
thr();
ret.merge(straight_walls(pad_part.contour, z_max, z_min));
for (auto &h : pad_part.holes)
ret.merge(straight_walls(h, z_max, z_min, thr));
ret.merge(straight_walls(h, z_max, z_min));
ret.merge(triangulate_expolygon_3d(pad_part, z_min, NORMALS_DOWN));
ret.merge(triangulate_expolygon_3d(pad_part, z_max, NORMALS_UP));

View File

@ -1,320 +0,0 @@
#ifndef SLARASTER_CPP
#define SLARASTER_CPP
#include <functional>
#include <libslic3r/SLA/Raster.hpp>
#include "libslic3r/ExPolygon.hpp"
#include "libslic3r/MTUtils.hpp"
#include <libnest2d/backends/clipper/clipper_polygon.hpp>
// For rasterizing
#include <agg/agg_basics.h>
#include <agg/agg_rendering_buffer.h>
#include <agg/agg_pixfmt_gray.h>
#include <agg/agg_pixfmt_rgb.h>
#include <agg/agg_renderer_base.h>
#include <agg/agg_renderer_scanline.h>
#include <agg/agg_scanline_p.h>
#include <agg/agg_rasterizer_scanline_aa.h>
#include <agg/agg_path_storage.h>
// Experimental minz image write:
#include <miniz.h>
namespace Slic3r {
inline const Polygon& contour(const ExPolygon& p) { return p.contour; }
inline const ClipperLib::Path& contour(const ClipperLib::Polygon& p) { return p.Contour; }
inline const Polygons& holes(const ExPolygon& p) { return p.holes; }
inline const ClipperLib::Paths& holes(const ClipperLib::Polygon& p) { return p.Holes; }
namespace sla {
const Raster::TMirroring Raster::NoMirror = {false, false};
const Raster::TMirroring Raster::MirrorX = {true, false};
const Raster::TMirroring Raster::MirrorY = {false, true};
const Raster::TMirroring Raster::MirrorXY = {true, true};
using TPixelRenderer = agg::pixfmt_gray8; // agg::pixfmt_rgb24;
using TRawRenderer = agg::renderer_base<TPixelRenderer>;
using TPixel = TPixelRenderer::color_type;
using TRawBuffer = agg::rendering_buffer;
using TBuffer = std::vector<TPixelRenderer::pixel_type>;
using TRendererAA = agg::renderer_scanline_aa_solid<TRawRenderer>;
class Raster::Impl {
public:
static const TPixel ColorWhite;
static const TPixel ColorBlack;
using Format = Raster::RawData;
private:
Raster::Resolution m_resolution;
Raster::PixelDim m_pxdim_scaled; // used for scaled coordinate polygons
TBuffer m_buf;
TRawBuffer m_rbuf;
TPixelRenderer m_pixfmt;
TRawRenderer m_raw_renderer;
TRendererAA m_renderer;
std::function<double(double)> m_gammafn;
Trafo m_trafo;
inline void flipy(agg::path_storage& path) const {
path.flip_y(0, double(m_resolution.height_px));
}
inline void flipx(agg::path_storage& path) const {
path.flip_x(0, double(m_resolution.width_px));
}
public:
inline Impl(const Raster::Resolution & res,
const Raster::PixelDim & pd,
const Trafo &trafo)
: m_resolution(res)
, m_pxdim_scaled(SCALING_FACTOR / pd.w_mm, SCALING_FACTOR / pd.h_mm)
, m_buf(res.pixels())
, m_rbuf(reinterpret_cast<TPixelRenderer::value_type *>(m_buf.data()),
unsigned(res.width_px),
unsigned(res.height_px),
int(res.width_px * TPixelRenderer::num_components))
, m_pixfmt(m_rbuf)
, m_raw_renderer(m_pixfmt)
, m_renderer(m_raw_renderer)
, m_trafo(trafo)
{
m_renderer.color(ColorWhite);
if (trafo.gamma > 0) m_gammafn = agg::gamma_power(trafo.gamma);
else m_gammafn = agg::gamma_threshold(0.5);
clear();
}
template<class P> void draw(const P &poly) {
agg::rasterizer_scanline_aa<> ras;
agg::scanline_p8 scanlines;
ras.gamma(m_gammafn);
ras.add_path(to_path(contour(poly)));
for(auto& h : holes(poly)) ras.add_path(to_path(h));
agg::render_scanlines(ras, scanlines, m_renderer);
}
inline void clear() {
m_raw_renderer.clear(ColorBlack);
}
inline TBuffer& buffer() { return m_buf; }
inline const TBuffer& buffer() const { return m_buf; }
inline const Raster::Resolution resolution() { return m_resolution; }
inline const Raster::PixelDim pixdim()
{
return {SCALING_FACTOR / m_pxdim_scaled.w_mm,
SCALING_FACTOR / m_pxdim_scaled.h_mm};
}
private:
inline double getPx(const Point& p) {
return p(0) * m_pxdim_scaled.w_mm;
}
inline double getPy(const Point& p) {
return p(1) * m_pxdim_scaled.h_mm;
}
inline agg::path_storage to_path(const Polygon& poly)
{
return to_path(poly.points);
}
inline double getPx(const ClipperLib::IntPoint& p) {
return p.X * m_pxdim_scaled.w_mm;
}
inline double getPy(const ClipperLib::IntPoint& p) {
return p.Y * m_pxdim_scaled.h_mm;
}
template<class PointVec> agg::path_storage _to_path(const PointVec& v)
{
agg::path_storage path;
auto it = v.begin();
path.move_to(getPx(*it), getPy(*it));
while(++it != v.end()) path.line_to(getPx(*it), getPy(*it));
path.line_to(getPx(v.front()), getPy(v.front()));
return path;
}
template<class PointVec> agg::path_storage _to_path_flpxy(const PointVec& v)
{
agg::path_storage path;
auto it = v.begin();
path.move_to(getPy(*it), getPx(*it));
while(++it != v.end()) path.line_to(getPy(*it), getPx(*it));
path.line_to(getPy(v.front()), getPx(v.front()));
return path;
}
template<class PointVec> agg::path_storage to_path(const PointVec &v)
{
auto path = m_trafo.flipXY ? _to_path_flpxy(v) : _to_path(v);
path.translate_all_paths(m_trafo.origin_x * m_pxdim_scaled.w_mm,
m_trafo.origin_y * m_pxdim_scaled.h_mm);
if(m_trafo.mirror_x) flipx(path);
if(m_trafo.mirror_y) flipy(path);
return path;
}
};
const TPixel Raster::Impl::ColorWhite = TPixel(255);
const TPixel Raster::Impl::ColorBlack = TPixel(0);
Raster::Raster() { reset(); }
Raster::Raster(const Raster::Resolution &r,
const Raster::PixelDim & pd,
const Raster::Trafo & tr)
{
reset(r, pd, tr);
}
Raster::~Raster() = default;
Raster::Raster(Raster &&m) = default;
Raster &Raster::operator=(Raster &&) = default;
void Raster::reset(const Raster::Resolution &r, const Raster::PixelDim &pd,
const Trafo &trafo)
{
m_impl.reset();
m_impl.reset(new Impl(r, pd, trafo));
}
void Raster::reset()
{
m_impl.reset();
}
Raster::Resolution Raster::resolution() const
{
if (m_impl) return m_impl->resolution();
return Resolution{0, 0};
}
Raster::PixelDim Raster::pixel_dimensions() const
{
if (m_impl) return m_impl->pixdim();
return PixelDim{0., 0.};
}
void Raster::clear()
{
assert(m_impl);
m_impl->clear();
}
void Raster::draw(const ExPolygon &expoly)
{
assert(m_impl);
m_impl->draw(expoly);
}
void Raster::draw(const ClipperLib::Polygon &poly)
{
assert(m_impl);
m_impl->draw(poly);
}
uint8_t Raster::read_pixel(size_t x, size_t y) const
{
assert (m_impl);
TPixel::value_type px;
m_impl->buffer()[y * resolution().width_px + x].get(px);
return px;
}
PNGImage & PNGImage::serialize(const Raster &raster)
{
size_t s = 0;
m_buffer.clear();
void *rawdata = tdefl_write_image_to_png_file_in_memory(
get_internals(raster).buffer().data(),
int(raster.resolution().width_px),
int(raster.resolution().height_px), 1, &s);
// On error, data() will return an empty vector. No other info can be
// retrieved from miniz anyway...
if (rawdata == nullptr) return *this;
auto ptr = static_cast<std::uint8_t*>(rawdata);
m_buffer.reserve(s);
std::copy(ptr, ptr + s, std::back_inserter(m_buffer));
MZ_FREE(rawdata);
return *this;
}
std::ostream &operator<<(std::ostream &stream, const Raster::RawData &bytes)
{
stream.write(reinterpret_cast<const char *>(bytes.data()),
std::streamsize(bytes.size()));
return stream;
}
Raster::RawData::~RawData() = default;
PPMImage & PPMImage::serialize(const Raster &raster)
{
auto header = std::string("P5 ") +
std::to_string(raster.resolution().width_px) + " " +
std::to_string(raster.resolution().height_px) + " " + "255 ";
const auto &impl = get_internals(raster);
auto sz = impl.buffer().size() * sizeof(TBuffer::value_type);
size_t s = sz + header.size();
m_buffer.clear();
m_buffer.reserve(s);
auto buff = reinterpret_cast<const std::uint8_t*>(impl.buffer().data());
std::copy(header.begin(), header.end(), std::back_inserter(m_buffer));
std::copy(buff, buff+sz, std::back_inserter(m_buffer));
return *this;
}
const Raster::Impl &Raster::RawData::get_internals(const Raster &raster)
{
return *raster.m_impl;
}
} // namespace sla
} // namespace Slic3r
#endif // SLARASTER_CPP

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#ifndef SLA_RASTER_HPP
#define SLA_RASTER_HPP
#include <ostream>
#include <memory>
#include <vector>
#include <array>
#include <utility>
#include <cstdint>
#include <libslic3r/ExPolygon.hpp>
namespace ClipperLib { struct Polygon; }
namespace Slic3r {
namespace sla {
/**
* @brief Raster captures an anti-aliased monochrome canvas where vectorial
* polygons can be rasterized. Fill color is always white and the background is
* black. Contours are anti-aliased.
*
* It also supports saving the raster data into a standard output stream in raw
* or PNG format.
*/
class Raster {
class Impl;
std::unique_ptr<Impl> m_impl;
public:
// Raw byte buffer paired with its size. Suitable for compressed image data.
class RawData
{
protected:
std::vector<std::uint8_t> m_buffer;
const Impl& get_internals(const Raster& raster);
public:
RawData() = default;
RawData(std::vector<std::uint8_t>&& data): m_buffer(std::move(data)) {}
virtual ~RawData();
RawData(const RawData &) = delete;
RawData &operator=(const RawData &) = delete;
RawData(RawData &&) = default;
RawData &operator=(RawData &&) = default;
size_t size() const { return m_buffer.size(); }
const uint8_t * data() const { return m_buffer.data(); }
virtual RawData& serialize(const Raster &/*raster*/) { return *this; }
virtual std::string get_file_extension() const = 0;
};
/// Type that represents a resolution in pixels.
struct Resolution {
size_t width_px;
size_t height_px;
inline Resolution(size_t w = 0, size_t h = 0)
: width_px(w), height_px(h)
{}
inline size_t pixels() const { return width_px * height_px; }
};
/// Types that represents the dimension of a pixel in millimeters.
struct PixelDim {
double w_mm;
double h_mm;
inline PixelDim(double px_width_mm = 0.0, double px_height_mm = 0.0):
w_mm(px_width_mm), h_mm(px_height_mm) {}
};
enum Orientation { roLandscape, roPortrait };
using TMirroring = std::array<bool, 2>;
static const TMirroring NoMirror;
static const TMirroring MirrorX;
static const TMirroring MirrorY;
static const TMirroring MirrorXY;
struct Trafo {
bool mirror_x = false, mirror_y = false, flipXY = false;
coord_t origin_x = 0, origin_y = 0;
// If gamma is zero, thresholding will be performed which disables AA.
double gamma = 1.;
// Portrait orientation will make sure the drawed polygons are rotated
// by 90 degrees.
Trafo(Orientation o = roLandscape, const TMirroring &mirror = NoMirror)
// XY flipping implicitly does an X mirror
: mirror_x(o == roPortrait ? !mirror[0] : mirror[0])
, mirror_y(!mirror[1]) // Makes raster origin to be top left corner
, flipXY(o == roPortrait)
{}
};
Raster();
Raster(const Resolution &r,
const PixelDim & pd,
const Trafo & tr = {});
Raster(const Raster& cpy) = delete;
Raster& operator=(const Raster& cpy) = delete;
Raster(Raster&& m);
Raster& operator=(Raster&&);
~Raster();
/// Reallocated everything for the given resolution and pixel dimension.
void reset(const Resolution& r,
const PixelDim& pd,
const Trafo &tr = {});
/**
* Release the allocated resources. Drawing in this state ends in
* unspecified behavior.
*/
void reset();
/// Get the resolution of the raster.
Resolution resolution() const;
PixelDim pixel_dimensions() const;
/// Clear the raster with black color.
void clear();
/// Draw a polygon with holes.
void draw(const ExPolygon& poly);
void draw(const ClipperLib::Polygon& poly);
uint8_t read_pixel(size_t w, size_t h) const;
inline bool empty() const { return ! bool(m_impl); }
};
class PNGImage: public Raster::RawData {
public:
PNGImage& serialize(const Raster &raster) override;
std::string get_file_extension() const override { return "png"; }
};
class PPMImage: public Raster::RawData {
public:
PPMImage& serialize(const Raster &raster) override;
std::string get_file_extension() const override { return "ppm"; }
};
std::ostream& operator<<(std::ostream &stream, const Raster::RawData &bytes);
} // sla
} // Slic3r
#endif // SLARASTER_HPP

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#ifndef SLARASTER_CPP
#define SLARASTER_CPP
#include <functional>
#include <libslic3r/SLA/RasterBase.hpp>
#include <libslic3r/SLA/AGGRaster.hpp>
// minz image write:
#include <miniz.h>
namespace Slic3r { namespace sla {
const RasterBase::TMirroring RasterBase::NoMirror = {false, false};
const RasterBase::TMirroring RasterBase::MirrorX = {true, false};
const RasterBase::TMirroring RasterBase::MirrorY = {false, true};
const RasterBase::TMirroring RasterBase::MirrorXY = {true, true};
EncodedRaster PNGRasterEncoder::operator()(const void *ptr, size_t w, size_t h,
size_t num_components)
{
std::vector<uint8_t> buf;
size_t s = 0;
void *rawdata = tdefl_write_image_to_png_file_in_memory(
ptr, int(w), int(h), int(num_components), &s);
// On error, data() will return an empty vector. No other info can be
// retrieved from miniz anyway...
if (rawdata == nullptr) return EncodedRaster({}, "png");
auto pptr = static_cast<std::uint8_t*>(rawdata);
buf.reserve(s);
std::copy(pptr, pptr + s, std::back_inserter(buf));
MZ_FREE(rawdata);
return EncodedRaster(std::move(buf), "png");
}
std::ostream &operator<<(std::ostream &stream, const EncodedRaster &bytes)
{
stream.write(reinterpret_cast<const char *>(bytes.data()),
std::streamsize(bytes.size()));
return stream;
}
EncodedRaster PPMRasterEncoder::operator()(const void *ptr, size_t w, size_t h,
size_t num_components)
{
std::vector<uint8_t> buf;
auto header = std::string("P5 ") +
std::to_string(w) + " " +
std::to_string(h) + " " + "255 ";
auto sz = w * h * num_components;
size_t s = sz + header.size();
buf.reserve(s);
auto buff = reinterpret_cast<const std::uint8_t*>(ptr);
std::copy(header.begin(), header.end(), std::back_inserter(buf));
std::copy(buff, buff+sz, std::back_inserter(buf));
return EncodedRaster(std::move(buf), "ppm");
}
std::unique_ptr<RasterBase> create_raster_grayscale_aa(
const RasterBase::Resolution &res,
const RasterBase::PixelDim & pxdim,
double gamma,
const RasterBase::Trafo & tr)
{
std::unique_ptr<RasterBase> rst;
if (gamma > 0)
rst = std::make_unique<RasterGrayscaleAAGammaPower>(res, pxdim, tr, gamma);
else
rst = std::make_unique<RasterGrayscaleAA>(res, pxdim, tr, agg::gamma_threshold(.5));
return rst;
}
} // namespace sla
} // namespace Slic3r
#endif // SLARASTER_CPP

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#ifndef SLA_RASTERBASE_HPP
#define SLA_RASTERBASE_HPP
#include <ostream>
#include <memory>
#include <vector>
#include <array>
#include <utility>
#include <cstdint>
#include <libslic3r/ExPolygon.hpp>
#include <libslic3r/SLA/Concurrency.hpp>
namespace ClipperLib { struct Polygon; }
namespace Slic3r {
template<class T> using uqptr = std::unique_ptr<T>;
template<class T> using shptr = std::shared_ptr<T>;
template<class T> using wkptr = std::weak_ptr<T>;
namespace sla {
// Raw byte buffer paired with its size. Suitable for compressed image data.
class EncodedRaster {
protected:
std::vector<uint8_t> m_buffer;
std::string m_ext;
public:
EncodedRaster() = default;
explicit EncodedRaster(std::vector<uint8_t> &&buf, std::string ext)
: m_buffer(std::move(buf)), m_ext(std::move(ext))
{}
size_t size() const { return m_buffer.size(); }
const void * data() const { return m_buffer.data(); }
const char * extension() const { return m_ext.c_str(); }
};
using RasterEncoder =
std::function<EncodedRaster(const void *ptr, size_t w, size_t h, size_t num_components)>;
class RasterBase {
public:
enum Orientation { roLandscape, roPortrait };
using TMirroring = std::array<bool, 2>;
static const TMirroring NoMirror;
static const TMirroring MirrorX;
static const TMirroring MirrorY;
static const TMirroring MirrorXY;
struct Trafo {
bool mirror_x = false, mirror_y = false, flipXY = false;
coord_t center_x = 0, center_y = 0;
// Portrait orientation will make sure the drawed polygons are rotated
// by 90 degrees.
Trafo(Orientation o = roLandscape, const TMirroring &mirror = NoMirror)
// XY flipping implicitly does an X mirror
: mirror_x(o == roPortrait ? !mirror[0] : mirror[0])
, mirror_y(!mirror[1]) // Makes raster origin to be top left corner
, flipXY(o == roPortrait)
{}
TMirroring get_mirror() const { return { (roPortrait ? !mirror_x : mirror_x), mirror_y}; }
Orientation get_orientation() const { return flipXY ? roPortrait : roLandscape; }
Point get_center() const { return {center_x, center_y}; }
};
/// Type that represents a resolution in pixels.
struct Resolution {
size_t width_px = 0;
size_t height_px = 0;
Resolution(size_t w = 0, size_t h = 0) : width_px(w), height_px(h) {}
size_t pixels() const { return width_px * height_px; }
};
/// Types that represents the dimension of a pixel in millimeters.
struct PixelDim {
double w_mm = 0.;
double h_mm = 0.;
PixelDim(double px_width_mm = 0.0, double px_height_mm = 0.0)
: w_mm(px_width_mm), h_mm(px_height_mm)
{}
};
virtual ~RasterBase() = default;
/// Draw a polygon with holes.
virtual void draw(const ExPolygon& poly) = 0;
virtual void draw(const ClipperLib::Polygon& poly) = 0;
/// Get the resolution of the raster.
virtual Resolution resolution() const = 0;
virtual PixelDim pixel_dimensions() const = 0;
virtual Trafo trafo() const = 0;
virtual EncodedRaster encode(RasterEncoder encoder) const = 0;
};
struct PNGRasterEncoder {
EncodedRaster operator()(const void *ptr, size_t w, size_t h, size_t num_components);
};
struct PPMRasterEncoder {
EncodedRaster operator()(const void *ptr, size_t w, size_t h, size_t num_components);
};
std::ostream& operator<<(std::ostream &stream, const EncodedRaster &bytes);
// If gamma is zero, thresholding will be performed which disables AA.
uqptr<RasterBase> create_raster_grayscale_aa(
const RasterBase::Resolution &res,
const RasterBase::PixelDim & pxdim,
double gamma = 1.0,
const RasterBase::Trafo & tr = {});
}} // namespace Slic3r::sla
#endif // SLARASTERBASE_HPP

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#include "RasterToPolygons.hpp"
#include "AGGRaster.hpp"
#include "libslic3r/MarchingSquares.hpp"
#include "MTUtils.hpp"
#include "ClipperUtils.hpp"
namespace marchsq {
// Specialize this struct to register a raster type for the Marching squares alg
template<> struct _RasterTraits<Slic3r::sla::RasterGrayscaleAA> {
using Rst = Slic3r::sla::RasterGrayscaleAA;
// The type of pixel cell in the raster
using ValueType = uint8_t;
// Value at a given position
static uint8_t get(const Rst &rst, size_t row, size_t col) { return rst.read_pixel(col, row); }
// Number of rows and cols of the raster
static size_t rows(const Rst &rst) { return rst.resolution().height_px; }
static size_t cols(const Rst &rst) { return rst.resolution().width_px; }
};
} // namespace Slic3r::marchsq
namespace Slic3r { namespace sla {
template<class Fn> void foreach_vertex(ExPolygon &poly, Fn &&fn)
{
for (auto &p : poly.contour.points) fn(p);
for (auto &h : poly.holes)
for (auto &p : h.points) fn(p);
}
ExPolygons raster_to_polygons(const RasterGrayscaleAA &rst, float accuracy)
{
size_t rows = rst.resolution().height_px, cols = rst.resolution().width_px;
if (rows < 2 || cols < 2) return {};
Polygons polys;
size_t w_rows = (2 + rows / 8) - size_t(accuracy * rows / 8);
size_t w_cols = std::max(size_t(2), w_rows * cols / rows);
std::vector<marchsq::Ring> rings =
marchsq::execute(rst, 128, {w_rows, w_cols});
polys.reserve(rings.size());
auto pxd = rst.pixel_dimensions();
for (const marchsq::Ring &ring : rings) {
Polygon poly; Points &pts = poly.points;
pts.reserve(ring.size());
for (const marchsq::Coord &crd : ring)
pts.emplace_back(scaled(crd.c * pxd.w_mm), scaled(crd.r * pxd.h_mm));
polys.emplace_back(poly);
}
// reverse the raster transformations
ExPolygons unioned = union_ex(polys);
coord_t width = scaled(cols * pxd.h_mm), height = scaled(rows * pxd.w_mm);
auto tr = rst.trafo();
for (ExPolygon &expoly : unioned) {
if (tr.mirror_y)
foreach_vertex(expoly, [height](Point &p) {p.y() = height - p.y(); });
if (tr.mirror_x)
foreach_vertex(expoly, [width](Point &p) {p.x() = width - p.x(); });
expoly.translate(-tr.center_x, -tr.center_y);
if (tr.flipXY)
foreach_vertex(expoly, [](Point &p) { std::swap(p.x(), p.y()); });
if ((tr.mirror_x + tr.mirror_y + tr.flipXY) % 2) {
expoly.contour.reverse();
for (auto &h : expoly.holes) h.reverse();
}
}
return unioned;
}
}} // namespace Slic3r

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#ifndef RASTERTOPOLYGONS_HPP
#define RASTERTOPOLYGONS_HPP
#include "libslic3r/ExPolygon.hpp"
namespace Slic3r {
namespace sla {
class RasterGrayscaleAA;
ExPolygons raster_to_polygons(const RasterGrayscaleAA &rst, float accuracy = 1.f);
}}
#endif // RASTERTOPOLYGONS_HPP

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#include <string_view>
#include <libslic3r/SLA/RasterWriter.hpp>
#include "libslic3r/PrintConfig.hpp"
#include <libslic3r/Zipper.hpp>
#include <libslic3r/Time.hpp>
#include "ExPolygon.hpp"
#include <libnest2d/backends/clipper/clipper_polygon.hpp>
#include <boost/log/trivial.hpp>
#include <boost/filesystem/path.hpp>
namespace Slic3r { namespace sla {
void RasterWriter::write_ini(const std::map<std::string, std::string> &m, std::string &ini)
{
for (auto &param : m) ini += param.first + " = " + param.second + "\n";
}
std::string RasterWriter::create_ini_content(const std::string& projectname) const
{
std::string out("action = print\njobDir = ");
out += projectname + "\n";
write_ini(m_config, out);
return out;
}
RasterWriter::RasterWriter(const Raster::Resolution &res,
const Raster::PixelDim & pixdim,
const Raster::Trafo & trafo,
double gamma)
: m_res(res), m_pxdim(pixdim), m_trafo(trafo), m_gamma(gamma)
{}
void RasterWriter::save(const std::string &fpath, const std::string &prjname)
{
try {
Zipper zipper(fpath); // zipper with no compression
save(zipper, prjname);
zipper.finalize();
} catch(std::exception& e) {
BOOST_LOG_TRIVIAL(error) << e.what();
// Rethrow the exception
throw;
}
}
void RasterWriter::save(Zipper &zipper, const std::string &prjname)
{
try {
std::string project =
prjname.empty() ?
boost::filesystem::path(zipper.get_filename()).stem().string() :
prjname;
zipper.add_entry("config.ini");
zipper << create_ini_content(project);
zipper.add_entry("prusaslicer.ini");
std::string prusaslicer_ini;
write_ini(m_slicer_config, prusaslicer_ini);
zipper << prusaslicer_ini;
for(unsigned i = 0; i < m_layers_rst.size(); i++)
{
if(m_layers_rst[i].rawbytes.size() > 0) {
char lyrnum[6];
std::sprintf(lyrnum, "%.5d", i);
auto zfilename = project + lyrnum + ".png";
// Add binary entry to the zipper
zipper.add_entry(zfilename,
m_layers_rst[i].rawbytes.data(),
m_layers_rst[i].rawbytes.size());
}
}
} catch(std::exception& e) {
BOOST_LOG_TRIVIAL(error) << e.what();
// Rethrow the exception
throw;
}
}
namespace {
std::string get_cfg_value(const DynamicPrintConfig &cfg, const std::string &key)
{
std::string ret;
if (cfg.has(key)) {
auto opt = cfg.option(key);
if (opt) ret = opt->serialize();
}
return ret;
}
void append_full_config(const DynamicPrintConfig &cfg, std::map<std::string, std::string> &keys)
{
using namespace std::literals::string_view_literals;
// Sorted list of config keys, which shall not be stored into the ini.
static constexpr auto banned_keys = {
"compatible_printers"sv,
"compatible_prints"sv,
"print_host"sv,
"printhost_apikey"sv,
"printhost_cafile"sv
};
assert(std::is_sorted(banned_keys.begin(), banned_keys.end()));
auto is_banned = [](const std::string &key) {
return std::binary_search(banned_keys.begin(), banned_keys.end(), key);
};
for (const std::string &key : cfg.keys())
if (! is_banned(key) && ! cfg.option(key)->is_nil())
keys[key] = cfg.opt_serialize(key);
}
} // namespace
void RasterWriter::set_config(const DynamicPrintConfig &cfg)
{
m_config["layerHeight"] = get_cfg_value(cfg, "layer_height");
m_config["expTime"] = get_cfg_value(cfg, "exposure_time");
m_config["expTimeFirst"] = get_cfg_value(cfg, "initial_exposure_time");
m_config["materialName"] = get_cfg_value(cfg, "sla_material_settings_id");
m_config["printerModel"] = get_cfg_value(cfg, "printer_model");
m_config["printerVariant"] = get_cfg_value(cfg, "printer_variant");
m_config["printerProfile"] = get_cfg_value(cfg, "printer_settings_id");
m_config["printProfile"] = get_cfg_value(cfg, "sla_print_settings_id");
m_config["fileCreationTimestamp"] = Utils::utc_timestamp();
m_config["prusaSlicerVersion"] = SLIC3R_BUILD_ID;
append_full_config(cfg, m_slicer_config);
}
void RasterWriter::set_statistics(const PrintStatistics &stats)
{
m_config["usedMaterial"] = std::to_string(stats.used_material);
m_config["numFade"] = std::to_string(stats.num_fade);
m_config["numSlow"] = std::to_string(stats.num_slow);
m_config["numFast"] = std::to_string(stats.num_fast);
m_config["printTime"] = std::to_string(stats.estimated_print_time_s);
}
} // namespace sla
} // namespace Slic3r

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#ifndef SLA_RASTERWRITER_HPP
#define SLA_RASTERWRITER_HPP
// For png export of the sliced model
#include <fstream>
#include <string>
#include <sstream>
#include <vector>
#include <map>
#include <array>
#include <libslic3r/SLA/Raster.hpp>
#include <libslic3r/Zipper.hpp>
namespace Slic3r {
class DynamicPrintConfig;
namespace sla {
// API to write the zipped sla output layers and metadata.
// Implementation uses PNG raster output.
// Be aware that if a large number of layers are allocated, it can very well
// exhaust the available memory especially on 32 bit platform.
// This class is designed to be used in parallel mode. Layers have an ID and
// each layer can be written and compressed independently (in parallel).
// At the end when all layers where written, the save method can be used to
// write out the result into a zipped archive.
class RasterWriter
{
public:
// Used for addressing parameters of set_statistics()
struct PrintStatistics
{
double used_material = 0.;
double estimated_print_time_s = 0.;
size_t num_fade = 0;
size_t num_slow = 0;
size_t num_fast = 0;
};
private:
// A struct to bind the raster image data and its compressed bytes together.
struct Layer {
Raster raster;
PNGImage rawbytes;
Layer() = default;
// The image is big, do not copy by accident
Layer(const Layer&) = delete;
Layer& operator=(const Layer&) = delete;
Layer(Layer &&m) = default;
Layer &operator=(Layer &&) = default;
};
// We will save the compressed PNG data into RawBytes type buffers in
// parallel. Later we can write every layer to the disk sequentially.
std::vector<Layer> m_layers_rst;
Raster::Resolution m_res;
Raster::PixelDim m_pxdim;
Raster::Trafo m_trafo;
double m_gamma;
std::map<std::string, std::string> m_config;
std::map<std::string, std::string> m_slicer_config;
static void write_ini(const std::map<std::string, std::string> &m, std::string &ini);
std::string create_ini_content(const std::string& projectname) const;
public:
// SLARasterWriter is using Raster in custom mirroring mode
RasterWriter(const Raster::Resolution &res,
const Raster::PixelDim & pixdim,
const Raster::Trafo & trafo,
double gamma = 1.);
RasterWriter(const RasterWriter& ) = delete;
RasterWriter& operator=(const RasterWriter&) = delete;
RasterWriter(RasterWriter&& m) = default;
RasterWriter& operator=(RasterWriter&&) = default;
inline void layers(unsigned cnt) { if(cnt > 0) m_layers_rst.resize(cnt); }
inline unsigned layers() const { return unsigned(m_layers_rst.size()); }
template<class Poly> void draw_polygon(const Poly& p, unsigned lyr)
{
assert(lyr < m_layers_rst.size());
m_layers_rst[lyr].raster.draw(p);
}
inline void begin_layer(unsigned lyr) {
if(m_layers_rst.size() <= lyr) m_layers_rst.resize(lyr+1);
m_layers_rst[lyr].raster.reset(m_res, m_pxdim, m_trafo);
}
inline void begin_layer() {
m_layers_rst.emplace_back();
m_layers_rst.front().raster.reset(m_res, m_pxdim, m_trafo);
}
inline void finish_layer(unsigned lyr_id) {
assert(lyr_id < m_layers_rst.size());
m_layers_rst[lyr_id].rawbytes.serialize(m_layers_rst[lyr_id].raster);
m_layers_rst[lyr_id].raster.reset();
}
inline void finish_layer() {
if(!m_layers_rst.empty()) {
m_layers_rst.back().rawbytes.serialize(m_layers_rst.back().raster);
m_layers_rst.back().raster.reset();
}
}
void save(const std::string &fpath, const std::string &prjname = "");
void save(Zipper &zipper, const std::string &prjname = "");
void set_statistics(const PrintStatistics &statistics);
void set_config(const DynamicPrintConfig &cfg);
};
} // namespace sla
} // namespace Slic3r
#endif // SLARASTERWRITER_HPP

View File

@ -228,6 +228,8 @@ SLAPrint::ApplyStatus SLAPrint::apply(const Model &model, DynamicPrintConfig con
// Handle changes to object config defaults
m_default_object_config.apply_only(config, object_diff, true);
if (m_printer) m_printer->apply(m_printer_config);
struct ModelObjectStatus {
enum Status {
Unknown,
@ -482,7 +484,6 @@ SLAPrint::ApplyStatus SLAPrint::apply(const Model &model, DynamicPrintConfig con
}
if(m_objects.empty()) {
m_printer.reset();
m_printer_input = {};
m_print_statistics = {};
}
@ -657,6 +658,12 @@ std::string SLAPrint::validate() const
return "";
}
void SLAPrint::set_printer(SLAPrinter *arch)
{
invalidate_step(slapsRasterize);
m_printer = arch;
}
bool SLAPrint::invalidate_step(SLAPrintStep step)
{
bool invalidated = Inherited::invalidate_step(step);
@ -676,7 +683,7 @@ void SLAPrint::process()
// Assumption: at this point the print objects should be populated only with
// the model objects we have to process and the instances are also filtered
Steps printsteps{this};
Steps printsteps(this);
// We want to first process all objects...
std::vector<SLAPrintObjectStep> level1_obj_steps = {
@ -855,36 +862,6 @@ bool SLAPrint::invalidate_state_by_config_options(const std::vector<t_config_opt
return invalidated;
}
sla::RasterWriter & SLAPrint::init_printer()
{
sla::Raster::Resolution res;
sla::Raster::PixelDim pxdim;
std::array<bool, 2> mirror;
double w = m_printer_config.display_width.getFloat();
double h = m_printer_config.display_height.getFloat();
auto pw = size_t(m_printer_config.display_pixels_x.getInt());
auto ph = size_t(m_printer_config.display_pixels_y.getInt());
mirror[X] = m_printer_config.display_mirror_x.getBool();
mirror[Y] = m_printer_config.display_mirror_y.getBool();
auto orientation = get_printer_orientation();
if (orientation == sla::Raster::roPortrait) {
std::swap(w, h);
std::swap(pw, ph);
}
res = sla::Raster::Resolution{pw, ph};
pxdim = sla::Raster::PixelDim{w / pw, h / ph};
sla::Raster::Trafo tr{orientation, mirror};
tr.gamma = m_printer_config.gamma_correction.getFloat();
m_printer.reset(new sla::RasterWriter(res, pxdim, tr));
m_printer->set_config(m_full_print_config);
return *m_printer;
}
// Returns true if an object step is done on all objects and there's at least one object.
bool SLAPrint::is_step_done(SLAPrintObjectStep step) const
{

View File

@ -3,7 +3,7 @@
#include <mutex>
#include "PrintBase.hpp"
#include "SLA/RasterWriter.hpp"
#include "SLA/RasterBase.hpp"
#include "SLA/SupportTree.hpp"
#include "Point.hpp"
#include "MTUtils.hpp"
@ -369,6 +369,31 @@ struct SLAPrintStatistics
}
};
class SLAPrinter {
protected:
std::vector<sla::EncodedRaster> m_layers;
virtual uqptr<sla::RasterBase> create_raster() const = 0;
virtual sla::EncodedRaster encode_raster(const sla::RasterBase &rst) const = 0;
public:
virtual ~SLAPrinter() = default;
virtual void apply(const SLAPrinterConfig &cfg) = 0;
// Fn have to be thread safe: void(sla::RasterBase& raster, size_t lyrid);
template<class Fn> void draw_layers(size_t layer_num, Fn &&drawfn)
{
m_layers.resize(layer_num);
sla::ccr::enumerate(m_layers.begin(), m_layers.end(),
[this, &drawfn](sla::EncodedRaster& enc, size_t idx) {
auto rst = create_raster();
drawfn(*rst, idx);
enc = encode_raster(*rst);
});
}
};
/**
* @brief This class is the high level FSM for the SLA printing process.
*
@ -403,18 +428,6 @@ public:
// Returns true if the last step was finished with success.
bool finished() const override { return this->is_step_done(slaposSliceSupports) && this->Inherited::is_step_done(slapsRasterize); }
inline void export_raster(const std::string& fpath,
const std::string& projectname = "")
{
if(m_printer) m_printer->save(fpath, projectname);
}
inline void export_raster(Zipper &zipper,
const std::string& projectname = "")
{
if(m_printer) m_printer->save(zipper, projectname);
}
const PrintObjects& objects() const { return m_objects; }
const SLAPrintConfig& print_config() const { return m_print_config; }
@ -445,7 +458,8 @@ public:
std::vector<ClipperLib::Polygon> m_transformed_slices;
template<class Container> void transformed_slices(Container&& c) {
template<class Container> void transformed_slices(Container&& c)
{
m_transformed_slices = std::forward<Container>(c);
}
@ -475,7 +489,10 @@ public:
// TODO: use this structure for the preview in the future.
const std::vector<PrintLayer>& print_layers() const { return m_printer_input; }
void set_printer(SLAPrinter *archiver);
private:
// Implement same logic as in SLAPrintObject
bool invalidate_step(SLAPrintStep st);
@ -491,13 +508,13 @@ private:
std::vector<bool> m_stepmask;
// Ready-made data for rasterization.
std::vector<PrintLayer> m_printer_input;
std::vector<PrintLayer> m_printer_input;
// The printer itself
std::unique_ptr<sla::RasterWriter> m_printer;
// The archive object which collects the raster images after slicing
SLAPrinter *m_printer = nullptr;
// Estimated print time, material consumed.
SLAPrintStatistics m_print_statistics;
SLAPrintStatistics m_print_statistics;
class StatusReporter
{
@ -513,15 +530,6 @@ private:
double status() const { return m_st; }
} m_report_status;
sla::RasterWriter &init_printer();
inline sla::Raster::Orientation get_printer_orientation() const
{
auto ro = m_printer_config.display_orientation.getInt();
return ro == sla::Raster::roPortrait ? sla::Raster::roPortrait :
sla::Raster::roLandscape;
}
friend SLAPrintObject;
};

View File

@ -816,16 +816,7 @@ void SLAPrint::Steps::merge_slices_and_eval_stats() {
// Rasterizing the model objects, and their supports
void SLAPrint::Steps::rasterize()
{
if(canceled()) return;
auto &print_statistics = m_print->m_print_statistics;
auto &printer_input = m_print->m_printer_input;
// Set up the printer, allocate space for all the layers
sla::RasterWriter &printer = m_print->init_printer();
auto lvlcnt = unsigned(printer_input.size());
printer.layers(lvlcnt);
if(canceled() || !m_print->m_printer) return;
// coefficient to map the rasterization state (0-99) to the allocated
// portion (slot) of the process state
@ -837,7 +828,7 @@ void SLAPrint::Steps::rasterize()
// pst: previous state
double pst = current_status();
double increment = (slot * sd) / printer_input.size();
double increment = (slot * sd) / m_print->m_printer_input.size();
double dstatus = current_status();
sla::ccr::SpinningMutex slck;
@ -845,20 +836,14 @@ void SLAPrint::Steps::rasterize()
// procedure to process one height level. This will run in parallel
auto lvlfn =
[this, &slck, &printer, increment, &dstatus, &pst]
(PrintLayer& printlayer, size_t idx)
[this, &slck, increment, &dstatus, &pst]
(sla::RasterBase& raster, size_t idx)
{
PrintLayer& printlayer = m_print->m_printer_input[idx];
if(canceled()) return;
auto level_id = unsigned(idx);
// Switch to the appropriate layer in the printer
printer.begin_layer(level_id);
for(const ClipperLib::Polygon& poly : printlayer.transformed_slices())
printer.draw_polygon(poly, level_id);
// Finish the layer for later saving it.
printer.finish_layer(level_id);
for (const ClipperLib::Polygon& poly : printlayer.transformed_slices())
raster.draw(poly);
// Status indication guarded with the spinlock
{
@ -875,24 +860,8 @@ void SLAPrint::Steps::rasterize()
// last minute escape
if(canceled()) return;
// Sequential version (for testing)
// for(unsigned l = 0; l < lvlcnt; ++l) lvlfn(l);
// Print all the layers in parallel
sla::ccr::enumerate(printer_input.begin(), printer_input.end(), lvlfn);
// Set statistics values to the printer
sla::RasterWriter::PrintStatistics stats;
stats.used_material = (print_statistics.objects_used_material +
print_statistics.support_used_material) / 1000;
int num_fade = m_print->m_default_object_config.faded_layers.getInt();
stats.num_fade = num_fade >= 0 ? size_t(num_fade) : size_t(0);
stats.num_fast = print_statistics.fast_layers_count;
stats.num_slow = print_statistics.slow_layers_count;
stats.estimated_print_time_s = print_statistics.estimated_print_time;
printer.set_statistics(stats);
m_print->m_printer->draw_layers(m_print->m_printer_input.size(), lvlfn);
}
std::string SLAPrint::Steps::label(SLAPrintObjectStep step)

View File

@ -46,7 +46,7 @@ private:
void apply_printer_corrections(SLAPrintObject &po, SliceOrigin o);
public:
Steps(SLAPrint *print);
explicit Steps(SLAPrint *print);
void hollow_model(SLAPrintObject &po);
void drill_holes (SLAPrintObject &po);

View File

@ -0,0 +1,83 @@
#include "SlicesToTriangleMesh.hpp"
#include "libslic3r/TriangulateWall.hpp"
#include "libslic3r/SLA/Contour3D.hpp"
#include "libslic3r/ClipperUtils.hpp"
#include "libslic3r/Tesselate.hpp"
namespace Slic3r {
inline sla::Contour3D walls(const Polygon &lower,
const Polygon &upper,
double lower_z_mm,
double upper_z_mm)
{
Wall w = triangulate_wall(lower, upper, lower_z_mm, upper_z_mm);
sla::Contour3D ret;
ret.points = std::move(w.first);
ret.faces3 = std::move(w.second);
return ret;
}
// Same as walls() but with identical higher and lower polygons.
sla::Contour3D inline straight_walls(const Polygon &plate,
double lo_z,
double hi_z)
{
return walls(plate, plate, lo_z, hi_z);
}
sla::Contour3D inline straight_walls(const ExPolygon &plate,
double lo_z,
double hi_z)
{
sla::Contour3D ret;
ret.merge(straight_walls(plate.contour, lo_z, hi_z));
for (auto &h : plate.holes) ret.merge(straight_walls(h, lo_z, hi_z));
return ret;
}
sla::Contour3D inline straight_walls(const ExPolygons &slice,
double lo_z,
double hi_z)
{
sla::Contour3D ret;
for (const ExPolygon &poly : slice)
ret.merge(straight_walls(poly, lo_z, hi_z));
return ret;
}
void slices_to_triangle_mesh(TriangleMesh & mesh,
const std::vector<ExPolygons> &slices,
double zmin,
double lh,
double ilh)
{
sla::Contour3D cntr3d;
double h = zmin;
auto it = slices.begin(), xt = std::next(it);
cntr3d.merge(triangulate_expolygons_3d(*it, h, NORMALS_DOWN));
cntr3d.merge(straight_walls(*it, h, h + ilh));
h += ilh;
while (xt != slices.end()) {
ExPolygons dff1 = diff_ex(*it, *xt);
ExPolygons dff2 = diff_ex(*xt, *it);
cntr3d.merge(triangulate_expolygons_3d(dff1, h, NORMALS_UP));
cntr3d.merge(triangulate_expolygons_3d(dff2, h, NORMALS_UP));
cntr3d.merge(straight_walls(*xt, h, h + lh));
h += lh;
++it; ++xt;
}
cntr3d.merge(triangulate_expolygons_3d(*it, h, NORMALS_UP));
mesh.merge(sla::to_triangle_mesh(cntr3d));
mesh.require_shared_vertices();
}
} // namespace Slic3r

View File

@ -0,0 +1,24 @@
#ifndef SLICESTOTRIANGLEMESH_HPP
#define SLICESTOTRIANGLEMESH_HPP
#include "libslic3r/TriangleMesh.hpp"
#include "libslic3r/ExPolygon.hpp"
namespace Slic3r {
void slices_to_triangle_mesh(TriangleMesh & mesh,
const std::vector<ExPolygons> &slices,
double zmin,
double lh,
double ilh);
inline TriangleMesh slices_to_triangle_mesh(
const std::vector<ExPolygons> &slices, double zmin, double lh, double ilh)
{
TriangleMesh out; slices_to_triangle_mesh(out, slices, zmin, lh, ilh);
return out;
}
} // namespace Slic3r
#endif // SLICESTOTRIANGLEMESH_HPP

View File

@ -0,0 +1,133 @@
#include "TriangulateWall.hpp"
#include "MTUtils.hpp"
namespace Slic3r {
class Ring {
size_t idx = 0, nextidx = 1, startidx = 0, begin = 0, end = 0;
public:
explicit Ring(size_t from, size_t to) : begin(from), end(to) { init(begin); }
size_t size() const { return end - begin; }
std::pair<size_t, size_t> pos() const { return {idx, nextidx}; }
bool is_lower() const { return idx < size(); }
void inc()
{
if (nextidx != startidx) nextidx++;
if (nextidx == end) nextidx = begin;
idx ++;
if (idx == end) idx = begin;
}
void init(size_t pos)
{
startidx = begin + (pos - begin) % size();
idx = startidx;
nextidx = begin + (idx + 1 - begin) % size();
}
bool is_finished() const { return nextidx == idx; }
};
static double sq_dst(const Vec3d &v1, const Vec3d& v2)
{
Vec3d v = v1 - v2;
return v.x() * v.x() + v.y() * v.y() /*+ v.z() * v.z()*/;
}
static double score(const Ring& onring, const Ring &offring,
const std::vector<Vec3d> &pts)
{
double a = sq_dst(pts[onring.pos().first], pts[offring.pos().first]);
double b = sq_dst(pts[onring.pos().second], pts[offring.pos().first]);
return (std::abs(a) + std::abs(b)) / 2.;
}
class Triangulator {
const std::vector<Vec3d> *pts;
Ring *onring, *offring;
double calc_score() const
{
return Slic3r::score(*onring, *offring, *pts);
}
void synchronize_rings()
{
Ring lring = *offring;
auto minsc = Slic3r::score(*onring, lring, *pts);
size_t imin = lring.pos().first;
lring.inc();
while(!lring.is_finished()) {
double score = Slic3r::score(*onring, lring, *pts);
if (score < minsc) { minsc = score; imin = lring.pos().first; }
lring.inc();
}
offring->init(imin);
}
void emplace_indices(std::vector<Vec3i> &indices)
{
Vec3i tr{int(onring->pos().first), int(onring->pos().second),
int(offring->pos().first)};
if (onring->is_lower()) std::swap(tr(0), tr(1));
indices.emplace_back(tr);
}
public:
void run(std::vector<Vec3i> &indices)
{
synchronize_rings();
double score = 0, prev_score = 0;
while (!onring->is_finished() || !offring->is_finished()) {
prev_score = score;
if (onring->is_finished() || (score = calc_score()) > prev_score) {
std::swap(onring, offring);
} else {
emplace_indices(indices);
onring->inc();
}
}
}
explicit Triangulator(const std::vector<Vec3d> *points,
Ring & lower,
Ring & upper)
: pts{points}, onring{&upper}, offring{&lower}
{}
};
Wall triangulate_wall(
const Polygon & lower,
const Polygon & upper,
double lower_z_mm,
double upper_z_mm)
{
if (upper.points.size() < 3 || lower.points.size() < 3) return {};
Wall wall;
auto &pts = wall.first;
auto &ind = wall.second;
pts.reserve(lower.points.size() + upper.points.size());
for (auto &p : lower.points)
wall.first.emplace_back(unscaled(p.x()), unscaled(p.y()), lower_z_mm);
for (auto &p : upper.points)
wall.first.emplace_back(unscaled(p.x()), unscaled(p.y()), upper_z_mm);
ind.reserve(2 * (lower.size() + upper.size()));
Ring lring{0, lower.points.size()}, uring{lower.points.size(), pts.size()};
Triangulator t{&pts, lring, uring};
t.run(ind);
return wall;
}
} // namespace Slic3r

View File

@ -0,0 +1,17 @@
#ifndef TRIANGULATEWALL_HPP
#define TRIANGULATEWALL_HPP
#include "libslic3r/Polygon.hpp"
namespace Slic3r {
using Wall = std::pair<std::vector<Vec3d>, std::vector<Vec3i>>;
Wall triangulate_wall(
const Polygon & lower,
const Polygon & upper,
double lower_z_mm,
double upper_z_mm);
}
#endif // TRIANGULATEWALL_HPP

View File

@ -167,7 +167,7 @@ void Zipper::add_entry(const std::string &name)
m_entry = name;
}
void Zipper::add_entry(const std::string &name, const uint8_t *data, size_t l)
void Zipper::add_entry(const std::string &name, const void *data, size_t l)
{
if(!m_impl->is_alive()) return;

View File

@ -49,7 +49,7 @@ public:
/// Add a new binary file entry with an instantly given byte buffer.
/// This method throws exactly like finish_entry() does.
void add_entry(const std::string& name, const std::uint8_t* data, size_t l);
void add_entry(const std::string& name, const void* data, size_t bytes);
// Writing data to the archive works like with standard streams. The target
// within the zip file is the entry created with the add_entry method.

View File

@ -182,6 +182,8 @@ set(SLIC3R_GUI_SOURCES
Utils/HexFile.cpp
Utils/HexFile.hpp
Utils/Thread.hpp
Utils/SLAZipFileImport.hpp
Utils/SLAZipFileImport.cpp
)
if (APPLE)

View File

@ -19,6 +19,7 @@
#include "libslic3r/Utils.hpp"
#include "libslic3r/GCode/PostProcessor.hpp"
#include "libslic3r/GCode/PreviewData.hpp"
#include "libslic3r/Format/SL1.hpp"
#include "libslic3r/libslic3r.h"
#include <cassert>
@ -149,7 +150,7 @@ void BackgroundSlicingProcess::process_sla()
const std::string export_path = m_sla_print->print_statistics().finalize_output_path(m_export_path);
Zipper zipper(export_path);
m_sla_print->export_raster(zipper);
m_sla_archive.export_print(zipper, *m_sla_print);
if (m_thumbnail_cb != nullptr)
{
@ -475,7 +476,7 @@ void BackgroundSlicingProcess::prepare_upload()
m_upload_job.upload_data.upload_path = m_sla_print->print_statistics().finalize_output_path(m_upload_job.upload_data.upload_path.string());
Zipper zipper{source_path.string()};
m_sla_print->export_raster(zipper, m_upload_job.upload_data.upload_path.string());
m_sla_archive.export_print(zipper, *m_sla_print, m_upload_job.upload_data.upload_path.string());
if (m_thumbnail_cb != nullptr)
{
ThumbnailsList thumbnails;

View File

@ -10,6 +10,7 @@
#include <wx/event.h>
#include "libslic3r/Print.hpp"
#include "libslic3r/Format/SL1.hpp"
#include "slic3r/Utils/PrintHost.hpp"
@ -19,6 +20,7 @@ class DynamicPrintConfig;
class GCodePreviewData;
class Model;
class SLAPrint;
class SL1Archive;
class SlicingStatusEvent : public wxEvent
{
@ -47,7 +49,7 @@ public:
~BackgroundSlicingProcess();
void set_fff_print(Print *print) { m_fff_print = print; }
void set_sla_print(SLAPrint *print) { m_sla_print = print; }
void set_sla_print(SLAPrint *print) { m_sla_print = print; m_sla_print->set_printer(&m_sla_archive); }
void set_gcode_preview_data(GCodePreviewData *gpd) { m_gcode_preview_data = gpd; }
void set_thumbnail_cb(ThumbnailsGeneratorCallback cb) { m_thumbnail_cb = cb; }
@ -155,6 +157,7 @@ private:
GCodePreviewData *m_gcode_preview_data = nullptr;
// Callback function, used to write thumbnails into gcode.
ThumbnailsGeneratorCallback m_thumbnail_cb = nullptr;
SL1Archive m_sla_archive;
// Temporary G-code, there is one defined for the BackgroundSlicingProcess, differentiated from the other processes by a process ID.
std::string m_temp_output_path;
// Output path provided by the user. The output path may be set even if the slicing is running,

View File

@ -589,6 +589,11 @@ void MainFrame::init_menubar()
append_menu_item(import_menu, wxID_ANY, _(L("Import STL/OBJ/AM&F/3MF")) + dots + "\tCtrl+I", _(L("Load a model")),
[this](wxCommandEvent&) { if (m_plater) m_plater->add_model(); }, "import_plater", nullptr,
[this](){return m_plater != nullptr; }, this);
append_menu_item(import_menu, wxID_ANY, _(L("Import SL1 archive")) + dots, _(L("Load an SL1 output archive")),
[this](wxCommandEvent&) { if (m_plater) m_plater->import_sl1_archive(); }, "import_plater", nullptr,
[this](){return m_plater != nullptr; }, this);
import_menu->AppendSeparator();
append_menu_item(import_menu, wxID_ANY, _(L("Import &Config")) + dots + "\tCtrl+L", _(L("Load exported configuration file")),
[this](wxCommandEvent&) { load_config_file(); }, "import_config", nullptr,

View File

@ -27,6 +27,7 @@
#include <wx/numdlg.h>
#include <wx/debug.h>
#include <wx/busyinfo.h>
#include <wx/filename.h>
#include "libslic3r/libslic3r.h"
#include "libslic3r/Format/STL.hpp"
@ -72,6 +73,7 @@
#include "../Utils/PrintHost.hpp"
#include "../Utils/FixModelByWin10.hpp"
#include "../Utils/UndoRedo.hpp"
#include "../Utils/SLAZipFileImport.hpp"
#include "RemovableDriveManager.hpp"
#if ENABLE_NON_STATIC_CANVAS_MANAGER
#ifdef __APPLE__
@ -4251,6 +4253,27 @@ void Plater::add_model()
load_files(paths, true, false);
}
void Plater::import_sl1_archive()
{
wxFileDialog dlg(this, _(L("Choose SL1 archive:")),
from_u8(wxGetApp().app_config->get_last_dir()), "",
"SL1 archive files (*.sl1)|*.sl1;*.SL1;*.zip;*.ZIP",
wxFD_OPEN | wxFD_FILE_MUST_EXIST);
if (dlg.ShowModal() == wxID_OK) {
try {
TriangleMesh mesh = import_model_from_sla_zip(dlg.GetPath());
ModelObject * obj = p->model.add_object(wxFileName(dlg.GetPath()).GetName(), "", mesh);
if (obj) {
obj->add_instance();
update();
}
} catch (std::exception &ex) {
show_error(this, ex.what());
}
}
}
void Plater::extract_config_from_project()
{
wxString input_file;

View File

@ -159,6 +159,7 @@ public:
void load_project();
void load_project(const wxString& filename);
void add_model();
void import_sl1_archive();
void extract_config_from_project();
std::vector<size_t> load_files(const std::vector<boost::filesystem::path>& input_files, bool load_model = true, bool load_config = true);

View File

@ -0,0 +1,144 @@
#include "SLAZipFileImport.hpp"
#include "libslic3r/SlicesToTriangleMesh.hpp"
#include "libslic3r/MarchingSquares.hpp"
#include "libslic3r/ClipperUtils.hpp"
#include "libslic3r/MTUtils.hpp"
#include "libslic3r/PrintConfig.hpp"
#include <wx/wfstream.h>
#include <wx/zipstrm.h>
#include <wx/mstream.h>
#include <wx/sstream.h>
#include <wx/image.h>
#include <tbb/parallel_for.h>
#include <boost/property_tree/ini_parser.hpp>
namespace marchsq {
// Specialize this struct to register a raster type for the Marching squares alg
template<> struct _RasterTraits<wxImage> {
using Rst = wxImage;
// The type of pixel cell in the raster
using ValueType = uint8_t;
// Value at a given position
static uint8_t get(const Rst &rst, size_t row, size_t col) { return rst.GetRed(col, row); }
// Number of rows and cols of the raster
static size_t rows(const Rst &rst) { return rst.GetHeight(); }
static size_t cols(const Rst &rst) { return rst.GetWidth(); }
};
} // namespace marchsq
namespace Slic3r {
ExPolygons rings_to_expolygons(const std::vector<marchsq::Ring> &rings,
double px_w, double px_h)
{
ExPolygons polys; polys.reserve(rings.size());
for (const marchsq::Ring &ring : rings) {
Polygon poly; Points &pts = poly.points;
pts.reserve(ring.size());
for (const marchsq::Coord &crd : ring)
pts.emplace_back(scaled(crd.c * px_w), scaled(crd.r * px_h));
polys.emplace_back(poly);
}
// reverse the raster transformations
return union_ex(polys);
}
TriangleMesh import_model_from_sla_zip(const wxString &zipfname)
{
wxFileInputStream in(zipfname);
wxZipInputStream zip(in, wxConvUTF8);
std::map<std::string, wxMemoryOutputStream> files;
while (auto entry = std::unique_ptr<wxZipEntry>(zip.GetNextEntry())) {
auto fname = wxFileName(entry->GetName());
wxString name_lo = fname.GetFullName().Lower();
if (fname.IsDir() || name_lo.Contains("thumbnail")) continue;
if (!zip.OpenEntry(*entry))
throw std::runtime_error("Cannot read archive");
wxMemoryOutputStream &stream = files[name_lo.ToStdString()];
zip.Read(stream);
std::cout << name_lo << " read bytes: " << zip.LastRead() << std::endl;
if (!zip.LastRead()) std::cout << zip.GetLastError() << std::endl;
}
using boost::property_tree::ptree;
auto load_ini = [&files](const std::string &key, ptree &tree) {
auto it = files.find(key);
if (it != files.end()) {
wxString str;
wxStringOutputStream oss{&str};
wxMemoryInputStream inp{it->second};
oss.Write(inp);
std::stringstream iss(str.ToStdString());
boost::property_tree::read_ini(iss, tree);
files.erase(it);
} else {
throw std::runtime_error(key + " is missing");
}
};
ptree profile_tree, config;
load_ini("prusaslicer.ini", profile_tree);
load_ini("config.ini", config);
DynamicPrintConfig profile;
profile.load(profile_tree);
size_t disp_cols = profile.opt_int("display_pixels_x");
size_t disp_rows = profile.opt_int("display_pixels_y");
double disp_w = profile.opt_float("display_width");
double disp_h = profile.opt_float("display_height");
double px_w = disp_w / disp_cols;
double px_h = disp_h / disp_rows;
auto jobdir = config.get<std::string>("jobDir");
for (auto &c : jobdir) c = std::tolower(c);
for (auto it = files.begin(); it != files.end();)
if (it->first.find(jobdir) == std::string::npos ||
wxFileName(it->first).GetExt().Lower() != "png")
it = files.erase(it);
else ++it;
std::vector<ExPolygons> slices(files.size());
size_t i = 0;
for (auto &item : files) {
wxMemoryOutputStream &imagedata = item.second;
wxMemoryInputStream stream{imagedata};
wxImage img{stream, "image/png"};
std::cout << img.GetWidth() << " " << img.GetHeight() << std::endl;
auto rings = marchsq::execute(img, 128);
slices[i++] = rings_to_expolygons(rings, px_w, px_h);
}
TriangleMesh out;
if (!slices.empty()) {
double lh = profile.opt_float("layer_height");
double ilh = profile.opt_float("initial_layer_height");
out = slices_to_triangle_mesh(slices, 0, lh, ilh);
}
return out;
}
} // namespace Slic3r

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@ -0,0 +1,14 @@
#ifndef SLAZIPFILEIMPORT_HPP
#define SLAZIPFILEIMPORT_HPP
#include "libslic3r/TriangleMesh.hpp"
#include <wx/string.h>
namespace Slic3r {
TriangleMesh import_model_from_sla_zip(const wxString &zipfname);
}
#endif // SLAZIPFILEIMPORT_HPP

View File

@ -13,6 +13,7 @@ add_executable(${_TEST_NAME}_tests
test_stl.cpp
test_meshsimplify.cpp
test_meshboolean.cpp
test_marchingsquares.cpp
test_timeutils.cpp
)

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@ -0,0 +1,342 @@
#include <catch2/catch.hpp>
#include <test_utils.hpp>
#include <fstream>
#include <libslic3r/MarchingSquares.hpp>
#include <libslic3r/SLA/RasterToPolygons.hpp>
#include <libslic3r/SLA/AGGRaster.hpp>
#include <libslic3r/MTUtils.hpp>
#include <libslic3r/SVG.hpp>
#include <libslic3r/ClipperUtils.hpp>
#include <libslic3r/TriangulateWall.hpp>
#include <libslic3r/Tesselate.hpp>
#include <libslic3r/SlicesToTriangleMesh.hpp>
#include <libslic3r/SLA/Contour3D.hpp>
using namespace Slic3r;
static Slic3r::sla::RasterGrayscaleAA create_raster(
const sla::RasterBase::Resolution &res,
double disp_w = 100.,
double disp_h = 100.)
{
sla::RasterBase::PixelDim pixdim{disp_w / res.width_px, disp_h / res.height_px};
auto bb = BoundingBox({0, 0}, {scaled(disp_w), scaled(disp_h)});
sla::RasterBase::Trafo trafo;
// trafo.center_x = bb.center().x();
// trafo.center_y = bb.center().y();
// trafo.center_x = scaled(pixdim.w_mm);
// trafo.center_y = scaled(pixdim.h_mm);
return sla::RasterGrayscaleAA{res, pixdim, trafo, agg::gamma_threshold(.5)};
}
static ExPolygon square(double a, Point center = {0, 0})
{
ExPolygon poly;
coord_t V = scaled(a / 2.);
poly.contour.points = {{-V, -V}, {V, -V}, {V, V}, {-V, V}};
poly.translate(center.x(), center.y());
return poly;
}
static ExPolygon square_with_hole(double a, Point center = {0, 0})
{
ExPolygon poly = square(a);
poly.holes.emplace_back();
coord_t V = scaled(a / 4.);
poly.holes.front().points = {{-V, V}, {V, V}, {V, -V}, {-V, -V}};
poly.translate(center.x(), center.y());
return poly;
}
static ExPolygons circle_with_hole(double r, Point center = {0, 0}) {
ExPolygon poly;
std::vector<double> pis = linspace_vector(0., 2 * PI, 100);
coord_t rs = scaled(r);
for (double phi : pis) {
poly.contour.points.emplace_back(rs * std::cos(phi), rs * std::sin(phi));
}
poly.holes.emplace_back(poly.contour);
poly.holes.front().reverse();
for (auto &p : poly.holes.front().points) p /= 2;
poly.translate(center.x(), center.y());
return {poly};
}
template<class Rst>
static void test_expolys(Rst && rst,
const ExPolygons & ref,
float accuracy,
const std::string &name = "test")
{
for (const ExPolygon &expoly : ref) rst.draw(expoly);
std::fstream out(name + ".png", std::ios::out);
out << rst.encode(sla::PNGRasterEncoder{});
out.close();
ExPolygons extracted = sla::raster_to_polygons(rst, accuracy);
SVG svg(name + ".svg");
svg.draw(extracted);
svg.Close();
REQUIRE(extracted.size() == ref.size());
for (size_t i = 0; i < ref.size(); ++i) {
REQUIRE(extracted[i].contour.is_counter_clockwise());
REQUIRE(extracted[i].holes.size() == ref[i].holes.size());
for (auto &h : extracted[i].holes) REQUIRE(h.is_clockwise());
double refa = ref[i].area();
REQUIRE(std::abs(extracted[i].area() - refa) < 0.1 * refa);
}
}
TEST_CASE("Empty raster should result in empty polygons", "[MarchingSquares]") {
sla::RasterGrayscaleAAGammaPower rst{{}, {}, {}};
ExPolygons extracted = sla::raster_to_polygons(rst);
REQUIRE(extracted.size() == 0);
}
TEST_CASE("Marching squares directions", "[MarchingSquares]") {
marchsq::Coord crd{1, 1};
REQUIRE(step(crd, marchsq::__impl::Dir::left).r == 1);
REQUIRE(step(crd, marchsq::__impl::Dir::left).c == 0);
REQUIRE(step(crd, marchsq::__impl::Dir::down).r == 2);
REQUIRE(step(crd, marchsq::__impl::Dir::down).c == 1);
REQUIRE(step(crd, marchsq::__impl::Dir::right).r == 1);
REQUIRE(step(crd, marchsq::__impl::Dir::right).c == 2);
REQUIRE(step(crd, marchsq::__impl::Dir::up).r == 0);
REQUIRE(step(crd, marchsq::__impl::Dir::up).c == 1);
}
TEST_CASE("4x4 raster with one ring", "[MarchingSquares]") {
sla::RasterBase::PixelDim pixdim{1, 1};
// We need one additional row and column to detect edges
sla::RasterGrayscaleAA rst{{5, 5}, pixdim, {}, agg::gamma_threshold(.5)};
// Draw a triangle from individual pixels
rst.draw(square(1., {1500000, 1500000}));
rst.draw(square(1., {2500000, 1500000}));
rst.draw(square(1., {3500000, 1500000}));
rst.draw(square(1., {2500000, 2500000}));
rst.draw(square(1., {3500000, 2500000}));
rst.draw(square(1., {3500000, 3500000}));
std::fstream out("4x4.png", std::ios::out);
out << rst.encode(sla::PNGRasterEncoder{});
out.close();
ExPolygons extracted = sla::raster_to_polygons(rst);
SVG svg("4x4.svg");
svg.draw(extracted);
svg.Close();
REQUIRE(extracted.size() == 1);
}
TEST_CASE("4x4 raster with two rings", "[MarchingSquares]") {
sla::RasterBase::PixelDim pixdim{1, 1};
// We need one additional row and column to detect edges
sla::RasterGrayscaleAA rst{{5, 5}, pixdim, {}, agg::gamma_threshold(.5)};
SECTION("Ambiguous case with 'ac' square") {
// Draw a triangle from individual pixels
rst.draw(square(1., {3500000, 2500000}));
rst.draw(square(1., {3500000, 3500000}));
rst.draw(square(1., {2500000, 3500000}));
rst.draw(square(1., {2500000, 1500000}));
rst.draw(square(1., {1500000, 1500000}));
rst.draw(square(1., {1500000, 2500000}));
std::fstream out("4x4_ac.png", std::ios::out);
out << rst.encode(sla::PNGRasterEncoder{});
out.close();
ExPolygons extracted = sla::raster_to_polygons(rst);
SVG svg("4x4_ac.svg");
svg.draw(extracted);
svg.Close();
REQUIRE(extracted.size() == 2);
}
SECTION("Ambiguous case with 'bd' square") {
// Draw a triangle from individual pixels
rst.draw(square(1., {3500000, 1500000}));
rst.draw(square(1., {3500000, 2500000}));
rst.draw(square(1., {2500000, 1500000}));
rst.draw(square(1., {1500000, 2500000}));
rst.draw(square(1., {1500000, 3500000}));
rst.draw(square(1., {2500000, 3500000}));
std::fstream out("4x4_bd.png", std::ios::out);
out << rst.encode(sla::PNGRasterEncoder{});
out.close();
ExPolygons extracted = sla::raster_to_polygons(rst);
SVG svg("4x4_bd.svg");
svg.draw(extracted);
svg.Close();
REQUIRE(extracted.size() == 2);
}
}
TEST_CASE("Square with hole in the middle", "[MarchingSquares]") {
using namespace Slic3r;
ExPolygons inp = {square_with_hole(50.)};
SECTION("Proportional raster, 1x1 mm pixel size, full accuracy") {
test_expolys(create_raster({100, 100}, 100., 100.), inp, 1.f, "square_with_hole_proportional_1x1_mm_px_full");
}
SECTION("Proportional raster, 1x1 mm pixel size, half accuracy") {
test_expolys(create_raster({100, 100}, 100., 100.), inp, .5f, "square_with_hole_proportional_1x1_mm_px_half");
}
SECTION("Landscape raster, 1x1 mm pixel size, full accuracy") {
test_expolys(create_raster({150, 100}, 150., 100.), inp, 1.f, "square_with_hole_landsc_1x1_mm_px_full");
}
SECTION("Landscape raster, 1x1 mm pixel size, half accuracy") {
test_expolys(create_raster({150, 100}, 150., 100.), inp, .5f, "square_with_hole_landsc_1x1_mm_px_half");
}
SECTION("Portrait raster, 1x1 mm pixel size, full accuracy") {
test_expolys(create_raster({100, 150}, 100., 150.), inp, 1.f, "square_with_hole_portrait_1x1_mm_px_full");
}
SECTION("Portrait raster, 1x1 mm pixel size, half accuracy") {
test_expolys(create_raster({100, 150}, 100., 150.), inp, .5f, "square_with_hole_portrait_1x1_mm_px_half");
}
SECTION("Proportional raster, 2x2 mm pixel size, full accuracy") {
test_expolys(create_raster({200, 200}, 100., 100.), inp, 1.f, "square_with_hole_proportional_2x2_mm_px_full");
}
SECTION("Proportional raster, 2x2 mm pixel size, half accuracy") {
test_expolys(create_raster({200, 200}, 100., 100.), inp, .5f, "square_with_hole_proportional_2x2_mm_px_half");
}
SECTION("Proportional raster, 0.5x0.5 mm pixel size, full accuracy") {
test_expolys(create_raster({50, 50}, 100., 100.), inp, 1.f, "square_with_hole_proportional_0.5x0.5_mm_px_full");
}
SECTION("Proportional raster, 0.5x0.5 mm pixel size, half accuracy") {
test_expolys(create_raster({50, 50}, 100., 100.), inp, .5f, "square_with_hole_proportional_0.5x0.5_mm_px_half");
}
}
TEST_CASE("Circle with hole in the middle", "[MarchingSquares]") {
using namespace Slic3r;
test_expolys(create_raster({100, 100}), circle_with_hole(25.), 1.f, "circle_with_hole");
}
static void recreate_object_from_slices(const std::string &objname, float lh) {
TriangleMesh mesh = load_model(objname);
mesh.require_shared_vertices();
auto bb = mesh.bounding_box();
std::vector<ExPolygons> layers;
slice_mesh(mesh, grid(float(bb.min.z()), float(bb.max.z()), lh), layers, 0.f, []{});
TriangleMesh out = slices_to_triangle_mesh(layers, bb.min.z(), double(lh), double(lh));
out.require_shared_vertices();
out.WriteOBJFile("out_from_slices.obj");
}
static void recreate_object_from_rasters(const std::string &objname, float lh) {
TriangleMesh mesh = load_model(objname);
auto bb = mesh.bounding_box();
// Vec3f tr = -bb.center().cast<float>();
// mesh.translate(tr.x(), tr.y(), tr.z());
// bb = mesh.bounding_box();
std::vector<ExPolygons> layers;
slice_mesh(mesh, grid(float(bb.min.z()) + lh, float(bb.max.z()), lh), layers, 0.f, []{});
sla::RasterBase::Resolution res{2560, 1440};
double disp_w = 120.96;
double disp_h = 68.04;
size_t cntr = 0;
for (ExPolygons &layer : layers) {
auto rst = create_raster(res, disp_w, disp_h);
for (ExPolygon &island : layer) {
rst.draw(island);
}
std::fstream out(objname + std::to_string(cntr) + ".png", std::ios::out);
out << rst.encode(sla::PNGRasterEncoder{});
out.close();
ExPolygons layer_ = sla::raster_to_polygons(rst);
// float delta = scaled(std::min(rst.pixel_dimensions().h_mm,
// rst.pixel_dimensions().w_mm));
// layer_ = expolygons_simplify(layer_, delta);
SVG svg(objname + std::to_string(cntr) + ".svg", BoundingBox(Point{0, 0}, Point{scaled(disp_w), scaled(disp_h)}));
svg.draw(layer_);
svg.draw(layer, "green");
svg.Close();
double layera = 0., layera_ = 0.;
for (auto &p : layer) layera += p.area();
for (auto &p : layer_) layera_ += p.area();
std::cout << cntr++ << std::endl;
double diff = std::abs(layera_ - layera);
REQUIRE((diff <= 0.1 * layera || diff < scaled<double>(1.) * scaled<double>(1.)));
layer = std::move(layer_);
}
TriangleMesh out = slices_to_triangle_mesh(layers, bb.min.z(), double(lh), double(lh));
out.require_shared_vertices();
out.WriteOBJFile("out_from_rasters.obj");
}
TEST_CASE("Recreate object from rasters", "[SL1Import]") {
recreate_object_from_rasters("triang.obj", 0.05f);
}

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@ -154,19 +154,12 @@ TEST_CASE("FloorSupportsDoNotPierceModel", "[SLASupportGeneration]") {
test_support_model_collision(fname, supportcfg);
}
TEST_CASE("DefaultRasterShouldBeEmpty", "[SLARasterOutput]") {
sla::Raster raster;
REQUIRE(raster.empty());
}
TEST_CASE("InitializedRasterShouldBeNONEmpty", "[SLARasterOutput]") {
// Default Prusa SL1 display parameters
sla::Raster::Resolution res{2560, 1440};
sla::Raster::PixelDim pixdim{120. / res.width_px, 68. / res.height_px};
sla::RasterBase::Resolution res{2560, 1440};
sla::RasterBase::PixelDim pixdim{120. / res.width_px, 68. / res.height_px};
sla::Raster raster;
raster.reset(res, pixdim);
REQUIRE_FALSE(raster.empty());
sla::RasterGrayscaleAAGammaPower raster(res, pixdim, {}, 1.);
REQUIRE(raster.resolution().width_px == res.width_px);
REQUIRE(raster.resolution().height_px == res.height_px);
REQUIRE(raster.pixel_dimensions().w_mm == Approx(pixdim.w_mm));
@ -174,13 +167,14 @@ TEST_CASE("InitializedRasterShouldBeNONEmpty", "[SLARasterOutput]") {
}
TEST_CASE("MirroringShouldBeCorrect", "[SLARasterOutput]") {
sla::Raster::TMirroring mirrorings[] = {sla::Raster::NoMirror,
sla::Raster::MirrorX,
sla::Raster::MirrorY,
sla::Raster::MirrorXY};
sla::RasterBase::TMirroring mirrorings[] = {sla::RasterBase::NoMirror,
sla::RasterBase::MirrorX,
sla::RasterBase::MirrorY,
sla::RasterBase::MirrorXY};
sla::RasterBase::Orientation orientations[] =
{sla::RasterBase::roLandscape, sla::RasterBase::roPortrait};
sla::Raster::Orientation orientations[] = {sla::Raster::roLandscape,
sla::Raster::roPortrait};
for (auto orientation : orientations)
for (auto &mirror : mirrorings)
check_raster_transformations(orientation, mirror);
@ -189,10 +183,11 @@ TEST_CASE("MirroringShouldBeCorrect", "[SLARasterOutput]") {
TEST_CASE("RasterizedPolygonAreaShouldMatch", "[SLARasterOutput]") {
double disp_w = 120., disp_h = 68.;
sla::Raster::Resolution res{2560, 1440};
sla::Raster::PixelDim pixdim{disp_w / res.width_px, disp_h / res.height_px};
sla::RasterBase::Resolution res{2560, 1440};
sla::RasterBase::PixelDim pixdim{disp_w / res.width_px, disp_h / res.height_px};
sla::Raster raster{res, pixdim};
double gamma = 1.;
sla::RasterGrayscaleAAGammaPower raster(res, pixdim, {}, gamma);
auto bb = BoundingBox({0, 0}, {scaled(disp_w), scaled(disp_h)});
ExPolygon poly = square_with_hole(10.);
@ -215,6 +210,13 @@ TEST_CASE("RasterizedPolygonAreaShouldMatch", "[SLARasterOutput]") {
diff = std::abs(a - ra);
REQUIRE(diff <= predict_error(poly, pixdim));
sla::RasterGrayscaleAA raster0(res, pixdim, {}, [](double) { return 0.; });
REQUIRE(raster_pxsum(raster0) == 0);
raster0.draw(poly);
ra = raster_white_area(raster);
REQUIRE(raster_pxsum(raster0) == 0);
}
TEST_CASE("Triangle mesh conversions should be correct", "[SLAConversions]")

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@ -1,4 +1,5 @@
#include "sla_test_utils.hpp"
#include "libslic3r/SLA/AGGRaster.hpp"
void test_support_model_collision(const std::string &obj_filename,
const sla::SupportConfig &input_supportcfg,
@ -293,18 +294,19 @@ void check_validity(const TriangleMesh &input_mesh, int flags)
}
}
void check_raster_transformations(sla::Raster::Orientation o, sla::Raster::TMirroring mirroring)
void check_raster_transformations(sla::RasterBase::Orientation o, sla::RasterBase::TMirroring mirroring)
{
double disp_w = 120., disp_h = 68.;
sla::Raster::Resolution res{2560, 1440};
sla::Raster::PixelDim pixdim{disp_w / res.width_px, disp_h / res.height_px};
sla::RasterBase::Resolution res{2560, 1440};
sla::RasterBase::PixelDim pixdim{disp_w / res.width_px, disp_h / res.height_px};
auto bb = BoundingBox({0, 0}, {scaled(disp_w), scaled(disp_h)});
sla::Raster::Trafo trafo{o, mirroring};
trafo.origin_x = bb.center().x();
trafo.origin_y = bb.center().y();
sla::RasterBase::Trafo trafo{o, mirroring};
trafo.center_x = bb.center().x();
trafo.center_y = bb.center().y();
double gamma = 1.;
sla::Raster raster{res, pixdim, trafo};
sla::RasterGrayscaleAAGammaPower raster{res, pixdim, trafo, gamma};
// create box of size 32x32 pixels (not 1x1 to avoid antialiasing errors)
coord_t pw = 32 * coord_t(std::ceil(scaled<double>(pixdim.w_mm)));
@ -319,7 +321,7 @@ void check_raster_transformations(sla::Raster::Orientation o, sla::Raster::TMirr
// Now calculate the position of the translated box according to output
// trafo.
if (o == sla::Raster::Orientation::roPortrait) expected_box.rotate(PI / 2.);
if (o == sla::RasterBase::Orientation::roPortrait) expected_box.rotate(PI / 2.);
if (mirroring[X])
for (auto &p : expected_box.contour.points) p.x() = -p.x();
@ -340,10 +342,9 @@ void check_raster_transformations(sla::Raster::Orientation o, sla::Raster::TMirr
auto px = raster.read_pixel(w, h);
if (px != FullWhite) {
sla::PNGImage img;
std::fstream outf("out.png", std::ios::out);
outf << img.serialize(raster);
outf << raster.encode(sla::PNGRasterEncoder());
}
REQUIRE(px == FullWhite);
@ -361,9 +362,21 @@ ExPolygon square_with_hole(double v)
return poly;
}
double raster_white_area(const sla::Raster &raster)
long raster_pxsum(const sla::RasterGrayscaleAA &raster)
{
if (raster.empty()) return std::nan("");
auto res = raster.resolution();
long a = 0;
for (size_t x = 0; x < res.width_px; ++x)
for (size_t y = 0; y < res.height_px; ++y)
a += raster.read_pixel(x, y);
return a;
}
double raster_white_area(const sla::RasterGrayscaleAA &raster)
{
if (raster.resolution().pixels() == 0) return std::nan("");
auto res = raster.resolution();
double a = 0;
@ -377,7 +390,7 @@ double raster_white_area(const sla::Raster &raster)
return a;
}
double predict_error(const ExPolygon &p, const sla::Raster::PixelDim &pd)
double predict_error(const ExPolygon &p, const sla::RasterBase::PixelDim &pd)
{
auto lines = p.lines();
double pix_err = pixel_area(FullWhite, pd) / 2.;

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@ -16,7 +16,7 @@
#include "libslic3r/SLA/SupportTreeBuilder.hpp"
#include "libslic3r/SLA/SupportTreeBuildsteps.hpp"
#include "libslic3r/SLA/SupportPointGenerator.hpp"
#include "libslic3r/SLA/Raster.hpp"
#include "libslic3r/SLA/AGGRaster.hpp"
#include "libslic3r/SLA/ConcaveHull.hpp"
#include "libslic3r/MTUtils.hpp"
@ -170,18 +170,19 @@ static constexpr const TPixel FullBlack = 0;
template <class A, int N> constexpr int arraysize(const A (&)[N]) { return N; }
void check_raster_transformations(sla::Raster::Orientation o,
sla::Raster::TMirroring mirroring);
void check_raster_transformations(sla::RasterBase::Orientation o,
sla::RasterBase::TMirroring mirroring);
ExPolygon square_with_hole(double v);
inline double pixel_area(TPixel px, const sla::Raster::PixelDim &pxdim)
inline double pixel_area(TPixel px, const sla::RasterBase::PixelDim &pxdim)
{
return (pxdim.h_mm * pxdim.w_mm) * px * 1. / (FullWhite - FullBlack);
}
double raster_white_area(const sla::Raster &raster);
double raster_white_area(const sla::RasterGrayscaleAA &raster);
long raster_pxsum(const sla::RasterGrayscaleAA &raster);
double predict_error(const ExPolygon &p, const sla::Raster::PixelDim &pd);
double predict_error(const ExPolygon &p, const sla::RasterBase::PixelDim &pd);
#endif // SLA_TEST_UTILS_HPP