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PrusaSlicer-NonPlainar/src/libslic3r/ExtrusionEntity.hpp
Vojtech Bubnik 5991850db1 WIP Extending the expressivity of ExtrusionRole 
Co-authored-by: supermerill <merill@free.fr>
Based on the unfinished idea of @supermerill, defining ExtrusionRole
as a bit mask of ExtrusionRoleModifier.
Because the ExtrusionRole was used for both ExtrusionEntity and
G-code export / G-code viewer, the original ExtrusionRole had to be split
to ExtrusionRole and GCodeExtrusionRole to support bitmask attributes
for the former while keeing a low number of ordinary values for the latter.
2023-01-16 10:14:46 +01:00

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#ifndef slic3r_ExtrusionEntity_hpp_
#define slic3r_ExtrusionEntity_hpp_
#include "libslic3r.h"
#include "Polygon.hpp"
#include "Polyline.hpp"
#include "enum_bitmask.hpp"
#include <assert.h>
#include <string_view>
#include <numeric>
namespace Slic3r {
class ExPolygon;
using ExPolygons = std::vector<ExPolygon>;
class ExtrusionEntityCollection;
class Extruder;
enum class ExtrusionRoleModifier : uint16_t {
// 1) Extrusion types
// Perimeter (external, inner, ...)
Perimeter,
// Infill (top / bottom / solid inner / sparse inner / bridging inner ...)
Infill,
// Variable width extrusion
Thin,
// Support material extrusion
Support,
Skirt,
Wipe,
// 2) Extrusion modifiers
External,
Solid,
Ironing,
Bridge,
// 3) Special types
// Indicator that the extrusion role was mixed from multiple differing extrusion roles,
// for example from Support and SupportInterface.
Mixed,
// Stopper, there should be maximum 16 modifiers defined for uint16_t bit mask.
Count
};
// There should be maximum 16 modifiers defined for uint16_t bit mask.
static_assert(int(ExtrusionRoleModifier::Count) <= 16, "ExtrusionRoleModifier: there must be maximum 16 modifiers defined to fit a 16 bit bitmask");
using ExtrusionRoleModifiers = enum_bitmask<ExtrusionRoleModifier>;
ENABLE_ENUM_BITMASK_OPERATORS(ExtrusionRoleModifier);
struct ExtrusionRole : public ExtrusionRoleModifiers
{
constexpr ExtrusionRole(const ExtrusionRoleModifier bit) : ExtrusionRoleModifiers(bit) {}
constexpr ExtrusionRole(const ExtrusionRoleModifiers bits) : ExtrusionRoleModifiers(bits) {}
static constexpr const ExtrusionRoleModifiers None{};
// Internal perimeter, not bridging.
static constexpr const ExtrusionRoleModifiers Perimeter{ ExtrusionRoleModifier::Perimeter };
// External perimeter, not bridging.
static constexpr const ExtrusionRoleModifiers ExternalPerimeter{ ExtrusionRoleModifier::Perimeter | ExtrusionRoleModifier::External };
// Perimeter, bridging. To be or'ed with ExtrusionRoleModifier::External for external bridging perimeter.
static constexpr const ExtrusionRoleModifiers OverhangPerimeter{ ExtrusionRoleModifier::Perimeter | ExtrusionRoleModifier::Bridge };
// Sparse internal infill.
static constexpr const ExtrusionRoleModifiers InternalInfill{ ExtrusionRoleModifier::Infill };
// Solid internal infill.
static constexpr const ExtrusionRoleModifiers SolidInfill{ ExtrusionRoleModifier::Infill | ExtrusionRoleModifier::Solid };
// Top solid infill (visible).
//FIXME why there is no bottom solid infill type?
static constexpr const ExtrusionRoleModifiers TopSolidInfill{ ExtrusionRoleModifier::Infill | ExtrusionRoleModifier::Solid | ExtrusionRoleModifier::External };
// Ironing infill at the top surfaces.
static constexpr const ExtrusionRoleModifiers Ironing{ ExtrusionRoleModifier::Infill | ExtrusionRoleModifier::Ironing | ExtrusionRoleModifier::External };
// Visible bridging infill at the bottom of an object.
static constexpr const ExtrusionRoleModifiers BridgeInfill{ ExtrusionRoleModifier::Infill | ExtrusionRoleModifier::Solid | ExtrusionRoleModifier::Bridge | ExtrusionRoleModifier::External };
// static constexpr const ExtrusionRoleModifiers InternalBridgeInfill{ ExtrusionRoleModifier::Infill | ExtrusionRoleModifier::Solid | ExtrusionRoleModifier::Bridge };
// Gap fill extrusion, currently used for any variable width extrusion: Thin walls outside of the outer extrusion,
// gap fill in between perimeters, gap fill between the inner perimeter and infill.
//FIXME revise GapFill and ThinWall types, split Gap Fill to Gap Fill and ThinWall.
static constexpr const ExtrusionRoleModifiers GapFill{ ExtrusionRoleModifier::Thin }; // | ExtrusionRoleModifier::External };
// static constexpr const ExtrusionRoleModifiers ThinWall{ ExtrusionRoleModifier::Thin };
static constexpr const ExtrusionRoleModifiers Skirt{ ExtrusionRoleModifier::Skirt };
// Support base material, printed with non-soluble plastic.
static constexpr const ExtrusionRoleModifiers SupportMaterial{ ExtrusionRoleModifier::Support };
// Support interface material, printed with soluble plastic.
static constexpr const ExtrusionRoleModifiers SupportMaterialInterface{ ExtrusionRoleModifier::Support | ExtrusionRoleModifier::External };
// Wipe tower material.
static constexpr const ExtrusionRoleModifiers WipeTower{ ExtrusionRoleModifier::Wipe };
// Extrusion role for a collection with multiple extrusion roles.
static constexpr const ExtrusionRoleModifiers Mixed{ ExtrusionRoleModifier::Mixed };
};
// Special flags describing loop
enum ExtrusionLoopRole {
elrDefault,
elrContourInternalPerimeter,
elrSkirt,
};
inline bool is_perimeter(ExtrusionRole role)
{
return role == ExtrusionRole::Perimeter
|| role == ExtrusionRole::ExternalPerimeter
|| role == ExtrusionRole::OverhangPerimeter;
}
inline bool is_infill(ExtrusionRole role)
{
return role == ExtrusionRole::BridgeInfill
|| role == ExtrusionRole::InternalInfill
|| role == ExtrusionRole::SolidInfill
|| role == ExtrusionRole::TopSolidInfill
|| role == ExtrusionRole::Ironing;
}
inline bool is_solid_infill(ExtrusionRole role)
{
return role == ExtrusionRole::BridgeInfill
|| role == ExtrusionRole::SolidInfill
|| role == ExtrusionRole::TopSolidInfill
|| role == ExtrusionRole::Ironing;
}
inline bool is_bridge(ExtrusionRole role) {
return role == ExtrusionRole::BridgeInfill
|| role == ExtrusionRole::OverhangPerimeter;
}
enum GCodeExtrusionRole : uint8_t {
erNone,
erPerimeter,
erExternalPerimeter,
erOverhangPerimeter,
erInternalInfill,
erSolidInfill,
erTopSolidInfill,
erIroning,
erBridgeInfill,
erGapFill,
erSkirt,
erSupportMaterial,
erSupportMaterialInterface,
erWipeTower,
// Custom (user defined) G-code block, for example start / end G-code.
erCustom,
// Stopper to count number of enums.
erCount
};
class ExtrusionEntity
{
public:
virtual ExtrusionRole role() const = 0;
virtual bool is_collection() const { return false; }
virtual bool is_loop() const { return false; }
virtual bool can_reverse() const { return true; }
virtual ExtrusionEntity* clone() const = 0;
// Create a new object, initialize it with this object using the move semantics.
virtual ExtrusionEntity* clone_move() = 0;
virtual ~ExtrusionEntity() = default;
virtual void reverse() = 0;
virtual const Point& first_point() const = 0;
virtual const Point& last_point() const = 0;
// Produce a list of 2D polygons covered by the extruded paths, offsetted by the extrusion width.
// Increase the offset by scaled_epsilon to achieve an overlap, so a union will produce no gaps.
virtual void polygons_covered_by_width(Polygons &out, const float scaled_epsilon) const = 0;
// Produce a list of 2D polygons covered by the extruded paths, offsetted by the extrusion spacing.
// Increase the offset by scaled_epsilon to achieve an overlap, so a union will produce no gaps.
// Useful to calculate area of an infill, which has been really filled in by a 100% rectilinear infill.
virtual void polygons_covered_by_spacing(Polygons &out, const float scaled_epsilon) const = 0;
Polygons polygons_covered_by_width(const float scaled_epsilon = 0.f) const
{ Polygons out; this->polygons_covered_by_width(out, scaled_epsilon); return out; }
Polygons polygons_covered_by_spacing(const float scaled_epsilon = 0.f) const
{ Polygons out; this->polygons_covered_by_spacing(out, scaled_epsilon); return out; }
// Minimum volumetric velocity of this extrusion entity. Used by the constant nozzle pressure algorithm.
virtual double min_mm3_per_mm() const = 0;
virtual Polyline as_polyline() const = 0;
virtual void collect_polylines(Polylines &dst) const = 0;
virtual void collect_points(Points &dst) const = 0;
virtual Polylines as_polylines() const { Polylines dst; this->collect_polylines(dst); return dst; }
virtual double length() const = 0;
virtual double total_volume() const = 0;
};
// Convert a rich bitmask based ExtrusionRole to a less expressive ordinal GCodeExtrusionRole.
// GCodeExtrusionRole is to be serialized into G-code and deserialized by G-code viewer,
GCodeExtrusionRole extrusion_role_to_gcode_extrusion_role(ExtrusionRole role);
std::string gcode_extrusion_role_to_string(GCodeExtrusionRole role);
GCodeExtrusionRole string_to_gcode_extrusion_role(const std::string_view role);
typedef std::vector<ExtrusionEntity*> ExtrusionEntitiesPtr;
class ExtrusionPath : public ExtrusionEntity
{
public:
Polyline polyline;
// Volumetric velocity. mm^3 of plastic per mm of linear head motion. Used by the G-code generator.
double mm3_per_mm;
// Width of the extrusion, used for visualization purposes.
float width;
// Height of the extrusion, used for visualization purposes.
float height;
ExtrusionPath(ExtrusionRole role) : mm3_per_mm(-1), width(-1), height(-1), m_role(role) {}
ExtrusionPath(ExtrusionRole role, double mm3_per_mm, float width, float height) : mm3_per_mm(mm3_per_mm), width(width), height(height), m_role(role) {}
ExtrusionPath(const ExtrusionPath& rhs) : polyline(rhs.polyline), mm3_per_mm(rhs.mm3_per_mm), width(rhs.width), height(rhs.height), m_role(rhs.m_role) {}
ExtrusionPath(ExtrusionPath&& rhs) : polyline(std::move(rhs.polyline)), mm3_per_mm(rhs.mm3_per_mm), width(rhs.width), height(rhs.height), m_role(rhs.m_role) {}
ExtrusionPath(const Polyline &polyline, const ExtrusionPath &rhs) : polyline(polyline), mm3_per_mm(rhs.mm3_per_mm), width(rhs.width), height(rhs.height), m_role(rhs.m_role) {}
ExtrusionPath(Polyline &&polyline, const ExtrusionPath &rhs) : polyline(std::move(polyline)), mm3_per_mm(rhs.mm3_per_mm), width(rhs.width), height(rhs.height), m_role(rhs.m_role) {}
ExtrusionPath& operator=(const ExtrusionPath& rhs) { m_role = rhs.m_role; this->mm3_per_mm = rhs.mm3_per_mm; this->width = rhs.width; this->height = rhs.height; this->polyline = rhs.polyline; return *this; }
ExtrusionPath& operator=(ExtrusionPath&& rhs) { m_role = rhs.m_role; this->mm3_per_mm = rhs.mm3_per_mm; this->width = rhs.width; this->height = rhs.height; this->polyline = std::move(rhs.polyline); return *this; }
ExtrusionEntity* clone() const override { return new ExtrusionPath(*this); }
// Create a new object, initialize it with this object using the move semantics.
ExtrusionEntity* clone_move() override { return new ExtrusionPath(std::move(*this)); }
void reverse() override { this->polyline.reverse(); }
const Point& first_point() const override { return this->polyline.points.front(); }
const Point& last_point() const override { return this->polyline.points.back(); }
size_t size() const { return this->polyline.size(); }
bool empty() const { return this->polyline.empty(); }
bool is_closed() const { return ! this->empty() && this->polyline.points.front() == this->polyline.points.back(); }
// Produce a list of extrusion paths into retval by clipping this path by ExPolygons.
// Currently not used.
void intersect_expolygons(const ExPolygons &collection, ExtrusionEntityCollection* retval) const;
// Produce a list of extrusion paths into retval by removing parts of this path by ExPolygons.
// Currently not used.
void subtract_expolygons(const ExPolygons &collection, ExtrusionEntityCollection* retval) const;
void clip_end(double distance);
void simplify(double tolerance);
double length() const override;
ExtrusionRole role() const override { return m_role; }
// Produce a list of 2D polygons covered by the extruded paths, offsetted by the extrusion width.
// Increase the offset by scaled_epsilon to achieve an overlap, so a union will produce no gaps.
void polygons_covered_by_width(Polygons &out, const float scaled_epsilon) const override;
// Produce a list of 2D polygons covered by the extruded paths, offsetted by the extrusion spacing.
// Increase the offset by scaled_epsilon to achieve an overlap, so a union will produce no gaps.
// Useful to calculate area of an infill, which has been really filled in by a 100% rectilinear infill.
void polygons_covered_by_spacing(Polygons &out, const float scaled_epsilon) const override;
Polygons polygons_covered_by_width(const float scaled_epsilon = 0.f) const
{ Polygons out; this->polygons_covered_by_width(out, scaled_epsilon); return out; }
Polygons polygons_covered_by_spacing(const float scaled_epsilon = 0.f) const
{ Polygons out; this->polygons_covered_by_spacing(out, scaled_epsilon); return out; }
// Minimum volumetric velocity of this extrusion entity. Used by the constant nozzle pressure algorithm.
double min_mm3_per_mm() const override { return this->mm3_per_mm; }
Polyline as_polyline() const override { return this->polyline; }
void collect_polylines(Polylines &dst) const override { if (! this->polyline.empty()) dst.emplace_back(this->polyline); }
void collect_points(Points &dst) const override { append(dst, this->polyline.points); }
double total_volume() const override { return mm3_per_mm * unscale<double>(length()); }
private:
void _inflate_collection(const Polylines &polylines, ExtrusionEntityCollection* collection) const;
ExtrusionRole m_role;
};
class ExtrusionPathOriented : public ExtrusionPath
{
public:
ExtrusionPathOriented(ExtrusionRole role, double mm3_per_mm, float width, float height) : ExtrusionPath(role, mm3_per_mm, width, height) {}
ExtrusionEntity* clone() const override { return new ExtrusionPathOriented(*this); }
// Create a new object, initialize it with this object using the move semantics.
ExtrusionEntity* clone_move() override { return new ExtrusionPathOriented(std::move(*this)); }
virtual bool can_reverse() const override { return false; }
};
typedef std::vector<ExtrusionPath> ExtrusionPaths;
// Single continuous extrusion path, possibly with varying extrusion thickness, extrusion height or bridging / non bridging.
class ExtrusionMultiPath : public ExtrusionEntity
{
public:
ExtrusionPaths paths;
ExtrusionMultiPath() {}
ExtrusionMultiPath(const ExtrusionMultiPath &rhs) : paths(rhs.paths) {}
ExtrusionMultiPath(ExtrusionMultiPath &&rhs) : paths(std::move(rhs.paths)) {}
ExtrusionMultiPath(const ExtrusionPaths &paths) : paths(paths) {}
ExtrusionMultiPath(const ExtrusionPath &path) { this->paths.push_back(path); }
ExtrusionMultiPath& operator=(const ExtrusionMultiPath &rhs) { this->paths = rhs.paths; return *this; }
ExtrusionMultiPath& operator=(ExtrusionMultiPath &&rhs) { this->paths = std::move(rhs.paths); return *this; }
bool is_loop() const override { return false; }
bool can_reverse() const override { return true; }
ExtrusionEntity* clone() const override { return new ExtrusionMultiPath(*this); }
// Create a new object, initialize it with this object using the move semantics.
ExtrusionEntity* clone_move() override { return new ExtrusionMultiPath(std::move(*this)); }
void reverse() override;
const Point& first_point() const override { return this->paths.front().polyline.points.front(); }
const Point& last_point() const override { return this->paths.back().polyline.points.back(); }
size_t size() const { return this->paths.size(); }
bool empty() const { return this->paths.empty(); }
double length() const override;
ExtrusionRole role() const override { return this->paths.empty() ? ExtrusionRole::None : this->paths.front().role(); }
// Produce a list of 2D polygons covered by the extruded paths, offsetted by the extrusion width.
// Increase the offset by scaled_epsilon to achieve an overlap, so a union will produce no gaps.
void polygons_covered_by_width(Polygons &out, const float scaled_epsilon) const override;
// Produce a list of 2D polygons covered by the extruded paths, offsetted by the extrusion spacing.
// Increase the offset by scaled_epsilon to achieve an overlap, so a union will produce no gaps.
// Useful to calculate area of an infill, which has been really filled in by a 100% rectilinear infill.
void polygons_covered_by_spacing(Polygons &out, const float scaled_epsilon) const override;
Polygons polygons_covered_by_width(const float scaled_epsilon = 0.f) const
{ Polygons out; this->polygons_covered_by_width(out, scaled_epsilon); return out; }
Polygons polygons_covered_by_spacing(const float scaled_epsilon = 0.f) const
{ Polygons out; this->polygons_covered_by_spacing(out, scaled_epsilon); return out; }
// Minimum volumetric velocity of this extrusion entity. Used by the constant nozzle pressure algorithm.
double min_mm3_per_mm() const override;
Polyline as_polyline() const override;
void collect_polylines(Polylines &dst) const override { Polyline pl = this->as_polyline(); if (! pl.empty()) dst.emplace_back(std::move(pl)); }
void collect_points(Points &dst) const override {
size_t n = std::accumulate(paths.begin(), paths.end(), 0, [](const size_t n, const ExtrusionPath &p){ return n + p.polyline.size(); });
dst.reserve(dst.size() + n);
for (const ExtrusionPath &p : this->paths)
append(dst, p.polyline.points);
}
double total_volume() const override { double volume =0.; for (const auto& path : paths) volume += path.total_volume(); return volume; }
};
// Single continuous extrusion loop, possibly with varying extrusion thickness, extrusion height or bridging / non bridging.
class ExtrusionLoop : public ExtrusionEntity
{
public:
ExtrusionPaths paths;
ExtrusionLoop(ExtrusionLoopRole role = elrDefault) : m_loop_role(role) {}
ExtrusionLoop(const ExtrusionPaths &paths, ExtrusionLoopRole role = elrDefault) : paths(paths), m_loop_role(role) {}
ExtrusionLoop(ExtrusionPaths &&paths, ExtrusionLoopRole role = elrDefault) : paths(std::move(paths)), m_loop_role(role) {}
ExtrusionLoop(const ExtrusionPath &path, ExtrusionLoopRole role = elrDefault) : m_loop_role(role)
{ this->paths.push_back(path); }
ExtrusionLoop(ExtrusionPath &&path, ExtrusionLoopRole role = elrDefault) : m_loop_role(role)
{ this->paths.emplace_back(std::move(path)); }
bool is_loop() const override{ return true; }
bool can_reverse() const override { return false; }
ExtrusionEntity* clone() const override{ return new ExtrusionLoop (*this); }
// Create a new object, initialize it with this object using the move semantics.
ExtrusionEntity* clone_move() override { return new ExtrusionLoop(std::move(*this)); }
bool make_clockwise();
bool make_counter_clockwise();
void reverse() override;
const Point& first_point() const override { return this->paths.front().polyline.points.front(); }
const Point& last_point() const override { assert(this->first_point() == this->paths.back().polyline.points.back()); return this->first_point(); }
Polygon polygon() const;
double length() const override;
bool split_at_vertex(const Point &point, const double scaled_epsilon = scaled<double>(0.001));
void split_at(const Point &point, bool prefer_non_overhang, const double scaled_epsilon = scaled<double>(0.001));
struct ClosestPathPoint {
size_t path_idx;
size_t segment_idx;
Point foot_pt;
};
ClosestPathPoint get_closest_path_and_point(const Point& point, bool prefer_non_overhang) const;
void clip_end(double distance, ExtrusionPaths* paths) const;
// Test, whether the point is extruded by a bridging flow.
// This used to be used to avoid placing seams on overhangs, but now the EdgeGrid is used instead.
bool has_overhang_point(const Point &point) const;
ExtrusionRole role() const override { return this->paths.empty() ? ExtrusionRole::None : this->paths.front().role(); }
ExtrusionLoopRole loop_role() const { return m_loop_role; }
// Produce a list of 2D polygons covered by the extruded paths, offsetted by the extrusion width.
// Increase the offset by scaled_epsilon to achieve an overlap, so a union will produce no gaps.
void polygons_covered_by_width(Polygons &out, const float scaled_epsilon) const override;
// Produce a list of 2D polygons covered by the extruded paths, offsetted by the extrusion spacing.
// Increase the offset by scaled_epsilon to achieve an overlap, so a union will produce no gaps.
// Useful to calculate area of an infill, which has been really filled in by a 100% rectilinear infill.
void polygons_covered_by_spacing(Polygons &out, const float scaled_epsilon) const override;
Polygons polygons_covered_by_width(const float scaled_epsilon = 0.f) const
{ Polygons out; this->polygons_covered_by_width(out, scaled_epsilon); return out; }
Polygons polygons_covered_by_spacing(const float scaled_epsilon = 0.f) const
{ Polygons out; this->polygons_covered_by_spacing(out, scaled_epsilon); return out; }
// Minimum volumetric velocity of this extrusion entity. Used by the constant nozzle pressure algorithm.
double min_mm3_per_mm() const override;
Polyline as_polyline() const override { return this->polygon().split_at_first_point(); }
void collect_polylines(Polylines &dst) const override { Polyline pl = this->as_polyline(); if (! pl.empty()) dst.emplace_back(std::move(pl)); }
void collect_points(Points &dst) const override {
size_t n = std::accumulate(paths.begin(), paths.end(), 0, [](const size_t n, const ExtrusionPath &p){ return n + p.polyline.size(); });
dst.reserve(dst.size() + n);
for (const ExtrusionPath &p : this->paths)
append(dst, p.polyline.points);
}
double total_volume() const override { double volume =0.; for (const auto& path : paths) volume += path.total_volume(); return volume; }
#ifndef NDEBUG
bool validate() const {
assert(this->first_point() == this->paths.back().polyline.points.back());
for (size_t i = 1; i < paths.size(); ++ i)
assert(this->paths[i - 1].polyline.points.back() == this->paths[i].polyline.points.front());
return true;
}
#endif /* NDEBUG */
private:
ExtrusionLoopRole m_loop_role;
};
inline void extrusion_paths_append(ExtrusionPaths &dst, Polylines &polylines, ExtrusionRole role, double mm3_per_mm, float width, float height)
{
dst.reserve(dst.size() + polylines.size());
for (Polyline &polyline : polylines)
if (polyline.is_valid()) {
dst.push_back(ExtrusionPath(role, mm3_per_mm, width, height));
dst.back().polyline = polyline;
}
}
inline void extrusion_paths_append(ExtrusionPaths &dst, Polylines &&polylines, ExtrusionRole role, double mm3_per_mm, float width, float height)
{
dst.reserve(dst.size() + polylines.size());
for (Polyline &polyline : polylines)
if (polyline.is_valid()) {
dst.push_back(ExtrusionPath(role, mm3_per_mm, width, height));
dst.back().polyline = std::move(polyline);
}
polylines.clear();
}
inline void extrusion_entities_append_paths(ExtrusionEntitiesPtr &dst, const Polylines &polylines, ExtrusionRole role, double mm3_per_mm, float width, float height, bool can_reverse = true)
{
dst.reserve(dst.size() + polylines.size());
for (const Polyline &polyline : polylines)
if (polyline.is_valid()) {
ExtrusionPath* extrusion_path = can_reverse ? new ExtrusionPath(role, mm3_per_mm, width, height) : new ExtrusionPathOriented(role, mm3_per_mm, width, height);
dst.push_back(extrusion_path);
extrusion_path->polyline = polyline;
}
}
inline void extrusion_entities_append_paths(ExtrusionEntitiesPtr &dst, Polylines &&polylines, ExtrusionRole role, double mm3_per_mm, float width, float height)
{
dst.reserve(dst.size() + polylines.size());
for (Polyline &polyline : polylines)
if (polyline.is_valid()) {
ExtrusionPath *extrusion_path = new ExtrusionPath(role, mm3_per_mm, width, height);
dst.push_back(extrusion_path);
extrusion_path->polyline = std::move(polyline);
}
polylines.clear();
}
inline void extrusion_entities_append_loops(ExtrusionEntitiesPtr &dst, Polygons &&loops, ExtrusionRole role, double mm3_per_mm, float width, float height)
{
dst.reserve(dst.size() + loops.size());
for (Polygon &poly : loops) {
if (poly.is_valid()) {
ExtrusionPath path(role, mm3_per_mm, width, height);
path.polyline.points = std::move(poly.points);
path.polyline.points.push_back(path.polyline.points.front());
dst.emplace_back(new ExtrusionLoop(std::move(path)));
}
}
loops.clear();
}
inline void extrusion_entities_append_loops_and_paths(ExtrusionEntitiesPtr &dst, Polylines &&polylines, ExtrusionRole role, double mm3_per_mm, float width, float height)
{
dst.reserve(dst.size() + polylines.size());
for (Polyline &polyline : polylines) {
if (polyline.is_valid()) {
if (polyline.is_closed()) {
ExtrusionPath extrusion_path(role, mm3_per_mm, width, height);
extrusion_path.polyline = std::move(polyline);
dst.emplace_back(new ExtrusionLoop(std::move(extrusion_path)));
} else {
ExtrusionPath *extrusion_path = new ExtrusionPath(role, mm3_per_mm, width, height);
extrusion_path->polyline = std::move(polyline);
dst.emplace_back(extrusion_path);
}
}
}
polylines.clear();
}
}
#endif
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