911 lines
34 KiB
C++
911 lines
34 KiB
C++
#include <libslic3r/Exception.hpp>
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#include <libslic3r/SLAPrintSteps.hpp>
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#include <libslic3r/MeshBoolean.hpp>
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// Need the cylinder method for the the drainholes in hollowing step
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#include <libslic3r/SLA/SupportTreeBuilder.hpp>
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#include <libslic3r/SLA/Concurrency.hpp>
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#include <libslic3r/SLA/Pad.hpp>
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#include <libslic3r/SLA/SupportPointGenerator.hpp>
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#include <libslic3r/ElephantFootCompensation.hpp>
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#include <libslic3r/ClipperUtils.hpp>
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// For geometry algorithms with native Clipper types (no copies and conversions)
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#include <libnest2d/backends/clipper/geometries.hpp>
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#include <boost/log/trivial.hpp>
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#include "I18N.hpp"
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//! macro used to mark string used at localization,
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//! return same string
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#define L(s) Slic3r::I18N::translate(s)
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namespace Slic3r {
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namespace {
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const std::array<unsigned, slaposCount> OBJ_STEP_LEVELS = {
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10, // slaposHollowing,
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10, // slaposDrillHoles
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10, // slaposObjectSlice,
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20, // slaposSupportPoints,
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10, // slaposSupportTree,
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10, // slaposPad,
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30, // slaposSliceSupports,
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};
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std::string OBJ_STEP_LABELS(size_t idx)
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{
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switch (idx) {
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case slaposHollowing: return L("Hollowing model");
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case slaposDrillHoles: return L("Drilling holes into model.");
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case slaposObjectSlice: return L("Slicing model");
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case slaposSupportPoints: return L("Generating support points");
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case slaposSupportTree: return L("Generating support tree");
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case slaposPad: return L("Generating pad");
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case slaposSliceSupports: return L("Slicing supports");
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default:;
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}
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assert(false);
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return "Out of bounds!";
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}
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const std::array<unsigned, slapsCount> PRINT_STEP_LEVELS = {
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10, // slapsMergeSlicesAndEval
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90, // slapsRasterize
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};
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std::string PRINT_STEP_LABELS(size_t idx)
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{
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switch (idx) {
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case slapsMergeSlicesAndEval: return L("Merging slices and calculating statistics");
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case slapsRasterize: return L("Rasterizing layers");
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default:;
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}
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assert(false); return "Out of bounds!";
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}
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}
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SLAPrint::Steps::Steps(SLAPrint *print)
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: m_print{print}
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, m_rng{std::random_device{}()}
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, objcount{m_print->m_objects.size()}
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, ilhd{m_print->m_material_config.initial_layer_height.getFloat()}
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, ilh{float(ilhd)}
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, ilhs{scaled(ilhd)}
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, objectstep_scale{(max_objstatus - min_objstatus) / (objcount * 100.0)}
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{}
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void SLAPrint::Steps::apply_printer_corrections(SLAPrintObject &po, SliceOrigin o)
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{
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if (o == soSupport && !po.m_supportdata) return;
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auto faded_lyrs = size_t(po.m_config.faded_layers.getInt());
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double min_w = m_print->m_printer_config.elefant_foot_min_width.getFloat() / 2.;
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double start_efc = m_print->m_printer_config.elefant_foot_compensation.getFloat();
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double doffs = m_print->m_printer_config.absolute_correction.getFloat();
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coord_t clpr_offs = scaled(doffs);
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faded_lyrs = std::min(po.m_slice_index.size(), faded_lyrs);
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size_t faded_lyrs_efc = std::max(size_t(1), faded_lyrs - 1);
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auto efc = [start_efc, faded_lyrs_efc](size_t pos) {
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return (faded_lyrs_efc - pos) * start_efc / faded_lyrs_efc;
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};
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std::vector<ExPolygons> &slices = o == soModel ?
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po.m_model_slices :
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po.m_supportdata->support_slices;
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if (clpr_offs != 0) for (size_t i = 0; i < po.m_slice_index.size(); ++i) {
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size_t idx = po.m_slice_index[i].get_slice_idx(o);
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if (idx < slices.size())
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slices[idx] = offset_ex(slices[idx], float(clpr_offs));
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}
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if (start_efc > 0.) for (size_t i = 0; i < faded_lyrs; ++i) {
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size_t idx = po.m_slice_index[i].get_slice_idx(o);
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if (idx < slices.size())
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slices[idx] = elephant_foot_compensation(slices[idx], min_w, efc(i));
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}
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}
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void SLAPrint::Steps::hollow_model(SLAPrintObject &po)
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{
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po.m_hollowing_data.reset();
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if (! po.m_config.hollowing_enable.getBool()) {
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BOOST_LOG_TRIVIAL(info) << "Skipping hollowing step!";
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return;
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}
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BOOST_LOG_TRIVIAL(info) << "Performing hollowing step!";
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double thickness = po.m_config.hollowing_min_thickness.getFloat();
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double quality = po.m_config.hollowing_quality.getFloat();
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double closing_d = po.m_config.hollowing_closing_distance.getFloat();
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sla::HollowingConfig hlwcfg{thickness, quality, closing_d};
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auto meshptr = generate_interior(po.transformed_mesh(), hlwcfg);
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if (meshptr->empty())
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BOOST_LOG_TRIVIAL(warning) << "Hollowed interior is empty!";
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else {
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po.m_hollowing_data.reset(new SLAPrintObject::HollowingData());
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po.m_hollowing_data->interior = *meshptr;
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}
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}
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// Drill holes into the hollowed/original mesh.
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void SLAPrint::Steps::drill_holes(SLAPrintObject &po)
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{
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bool needs_drilling = ! po.m_model_object->sla_drain_holes.empty();
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bool is_hollowed = (po.m_hollowing_data && ! po.m_hollowing_data->interior.empty());
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if (! is_hollowed && ! needs_drilling) {
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// In this case we can dump any data that might have been
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// generated on previous runs.
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po.m_hollowing_data.reset();
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return;
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}
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if (! po.m_hollowing_data)
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po.m_hollowing_data.reset(new SLAPrintObject::HollowingData());
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// Hollowing and/or drilling is active, m_hollowing_data is valid.
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// Regenerate hollowed mesh, even if it was there already. It may contain
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// holes that are no longer on the frontend.
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TriangleMesh &hollowed_mesh = po.m_hollowing_data->hollow_mesh_with_holes;
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hollowed_mesh = po.transformed_mesh();
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if (! po.m_hollowing_data->interior.empty()) {
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hollowed_mesh.merge(po.m_hollowing_data->interior);
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hollowed_mesh.require_shared_vertices();
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}
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if (! needs_drilling) {
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BOOST_LOG_TRIVIAL(info) << "Drilling skipped (no holes).";
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return;
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}
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BOOST_LOG_TRIVIAL(info) << "Drilling drainage holes.";
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sla::DrainHoles drainholes = po.transformed_drainhole_points();
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std::uniform_real_distribution<float> dist(0., float(EPSILON));
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auto holes_mesh_cgal = MeshBoolean::cgal::triangle_mesh_to_cgal({});
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for (sla::DrainHole holept : drainholes) {
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holept.normal += Vec3f{dist(m_rng), dist(m_rng), dist(m_rng)};
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holept.normal.normalize();
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holept.pos += Vec3f{dist(m_rng), dist(m_rng), dist(m_rng)};
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TriangleMesh m = sla::to_triangle_mesh(holept.to_mesh());
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m.require_shared_vertices();
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auto cgal_m = MeshBoolean::cgal::triangle_mesh_to_cgal(m);
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MeshBoolean::cgal::plus(*holes_mesh_cgal, *cgal_m);
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}
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if (MeshBoolean::cgal::does_self_intersect(*holes_mesh_cgal))
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throw Slic3r::SlicingError(L("Too many overlapping holes."));
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auto hollowed_mesh_cgal = MeshBoolean::cgal::triangle_mesh_to_cgal(hollowed_mesh);
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try {
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MeshBoolean::cgal::minus(*hollowed_mesh_cgal, *holes_mesh_cgal);
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hollowed_mesh = MeshBoolean::cgal::cgal_to_triangle_mesh(*hollowed_mesh_cgal);
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} catch (const std::runtime_error &) {
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throw Slic3r::SlicingError(L(
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"Drilling holes into the mesh failed. "
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"This is usually caused by broken model. Try to fix it first."));
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}
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}
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// The slicing will be performed on an imaginary 1D grid which starts from
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// the bottom of the bounding box created around the supported model. So
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// the first layer which is usually thicker will be part of the supports
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// not the model geometry. Exception is when the model is not in the air
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// (elevation is zero) and no pad creation was requested. In this case the
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// model geometry starts on the ground level and the initial layer is part
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// of it. In any case, the model and the supports have to be sliced in the
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// same imaginary grid (the height vector argument to TriangleMeshSlicer).
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void SLAPrint::Steps::slice_model(SLAPrintObject &po)
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{
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const TriangleMesh &mesh = po.get_mesh_to_print();
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// We need to prepare the slice index...
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double lhd = m_print->m_objects.front()->m_config.layer_height.getFloat();
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float lh = float(lhd);
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coord_t lhs = scaled(lhd);
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auto && bb3d = mesh.bounding_box();
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double minZ = bb3d.min(Z) - po.get_elevation();
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double maxZ = bb3d.max(Z);
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auto minZf = float(minZ);
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coord_t minZs = scaled(minZ);
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coord_t maxZs = scaled(maxZ);
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po.m_slice_index.clear();
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size_t cap = size_t(1 + (maxZs - minZs - ilhs) / lhs);
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po.m_slice_index.reserve(cap);
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po.m_slice_index.emplace_back(minZs + ilhs, minZf + ilh / 2.f, ilh);
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for(coord_t h = minZs + ilhs + lhs; h <= maxZs; h += lhs)
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po.m_slice_index.emplace_back(h, unscaled<float>(h) - lh / 2.f, lh);
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// Just get the first record that is from the model:
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auto slindex_it =
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po.closest_slice_record(po.m_slice_index, float(bb3d.min(Z)));
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if(slindex_it == po.m_slice_index.end())
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//TRN To be shown at the status bar on SLA slicing error.
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throw Slic3r::RuntimeError(
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L("Slicing had to be stopped due to an internal error: "
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"Inconsistent slice index."));
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po.m_model_height_levels.clear();
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po.m_model_height_levels.reserve(po.m_slice_index.size());
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for(auto it = slindex_it; it != po.m_slice_index.end(); ++it)
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po.m_model_height_levels.emplace_back(it->slice_level());
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TriangleMeshSlicer slicer(&mesh);
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po.m_model_slices.clear();
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float closing_r = float(po.config().slice_closing_radius.value);
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auto thr = [this]() { m_print->throw_if_canceled(); };
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auto &slice_grid = po.m_model_height_levels;
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slicer.slice(slice_grid, SlicingMode::Regular, closing_r, &po.m_model_slices, thr);
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if (po.m_hollowing_data && ! po.m_hollowing_data->interior.empty()) {
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po.m_hollowing_data->interior.repair(true);
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TriangleMeshSlicer interior_slicer(&po.m_hollowing_data->interior);
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std::vector<ExPolygons> interior_slices;
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interior_slicer.slice(slice_grid, SlicingMode::Regular, closing_r, &interior_slices, thr);
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sla::ccr::for_each(size_t(0), interior_slices.size(),
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[&po, &interior_slices] (size_t i) {
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const ExPolygons &slice = interior_slices[i];
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po.m_model_slices[i] =
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diff_ex(po.m_model_slices[i], slice);
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});
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}
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auto mit = slindex_it;
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for (size_t id = 0;
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id < po.m_model_slices.size() && mit != po.m_slice_index.end();
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id++) {
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mit->set_model_slice_idx(po, id); ++mit;
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}
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// We apply the printer correction offset here.
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apply_printer_corrections(po, soModel);
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if(po.m_config.supports_enable.getBool() || po.m_config.pad_enable.getBool())
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{
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po.m_supportdata.reset(new SLAPrintObject::SupportData(mesh));
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}
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}
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// In this step we check the slices, identify island and cover them with
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// support points. Then we sprinkle the rest of the mesh.
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void SLAPrint::Steps::support_points(SLAPrintObject &po)
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{
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// If supports are disabled, we can skip the model scan.
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if(!po.m_config.supports_enable.getBool()) return;
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const TriangleMesh &mesh = po.get_mesh_to_print();
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if (!po.m_supportdata)
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po.m_supportdata.reset(new SLAPrintObject::SupportData(mesh));
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const ModelObject& mo = *po.m_model_object;
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BOOST_LOG_TRIVIAL(debug) << "Support point count "
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<< mo.sla_support_points.size();
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// Unless the user modified the points or we already did the calculation,
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// we will do the autoplacement. Otherwise we will just blindly copy the
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// frontend data into the backend cache.
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if (mo.sla_points_status != sla::PointsStatus::UserModified) {
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// calculate heights of slices (slices are calculated already)
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const std::vector<float>& heights = po.m_model_height_levels;
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// Tell the mesh where drain holes are. Although the points are
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// calculated on slices, the algorithm then raycasts the points
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// so they actually lie on the mesh.
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// po.m_supportdata->emesh.load_holes(po.transformed_drainhole_points());
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throw_if_canceled();
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sla::SupportPointGenerator::Config config;
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const SLAPrintObjectConfig& cfg = po.config();
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// the density config value is in percents:
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config.density_relative = float(cfg.support_points_density_relative / 100.f);
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config.minimal_distance = float(cfg.support_points_minimal_distance);
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config.head_diameter = float(cfg.support_head_front_diameter);
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// scaling for the sub operations
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double d = objectstep_scale * OBJ_STEP_LEVELS[slaposSupportPoints] / 100.0;
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double init = current_status();
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auto statuscb = [this, d, init](unsigned st)
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{
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double current = init + st * d;
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if(std::round(current_status()) < std::round(current))
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report_status(current, OBJ_STEP_LABELS(slaposSupportPoints));
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};
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// Construction of this object does the calculation.
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throw_if_canceled();
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sla::SupportPointGenerator auto_supports(
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po.m_supportdata->emesh, po.get_model_slices(), heights, config,
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[this]() { throw_if_canceled(); }, statuscb);
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// Now let's extract the result.
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const std::vector<sla::SupportPoint>& points = auto_supports.output();
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throw_if_canceled();
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po.m_supportdata->pts = points;
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BOOST_LOG_TRIVIAL(debug) << "Automatic support points: "
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<< po.m_supportdata->pts.size();
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// Using RELOAD_SLA_SUPPORT_POINTS to tell the Plater to pass
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// the update status to GLGizmoSlaSupports
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report_status(-1, L("Generating support points"),
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SlicingStatus::RELOAD_SLA_SUPPORT_POINTS);
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} else {
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// There are either some points on the front-end, or the user
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// removed them on purpose. No calculation will be done.
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po.m_supportdata->pts = po.transformed_support_points();
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}
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}
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void SLAPrint::Steps::support_tree(SLAPrintObject &po)
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{
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if(!po.m_supportdata) return;
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sla::PadConfig pcfg = make_pad_cfg(po.m_config);
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if (pcfg.embed_object)
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po.m_supportdata->emesh.ground_level_offset(pcfg.wall_thickness_mm);
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// If the zero elevation mode is engaged, we have to filter out all the
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// points that are on the bottom of the object
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if (is_zero_elevation(po.config())) {
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remove_bottom_points(po.m_supportdata->pts,
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float(po.m_supportdata->emesh.ground_level() + EPSILON));
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}
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po.m_supportdata->cfg = make_support_cfg(po.m_config);
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// po.m_supportdata->emesh.load_holes(po.transformed_drainhole_points());
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// scaling for the sub operations
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double d = objectstep_scale * OBJ_STEP_LEVELS[slaposSupportTree] / 100.0;
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double init = current_status();
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sla::JobController ctl;
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ctl.statuscb = [this, d, init](unsigned st, const std::string &logmsg) {
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double current = init + st * d;
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if (std::round(current_status()) < std::round(current))
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report_status(current, OBJ_STEP_LABELS(slaposSupportTree),
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SlicingStatus::DEFAULT, logmsg);
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};
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ctl.stopcondition = [this]() { return canceled(); };
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ctl.cancelfn = [this]() { throw_if_canceled(); };
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po.m_supportdata->create_support_tree(ctl);
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if (!po.m_config.supports_enable.getBool()) return;
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throw_if_canceled();
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// Create the unified mesh
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auto rc = SlicingStatus::RELOAD_SCENE;
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// This is to prevent "Done." being displayed during merged_mesh()
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report_status(-1, L("Visualizing supports"));
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BOOST_LOG_TRIVIAL(debug) << "Processed support point count "
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<< po.m_supportdata->pts.size();
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// Check the mesh for later troubleshooting.
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if(po.support_mesh().empty())
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BOOST_LOG_TRIVIAL(warning) << "Support mesh is empty";
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report_status(-1, L("Visualizing supports"), rc);
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}
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void SLAPrint::Steps::generate_pad(SLAPrintObject &po) {
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// this step can only go after the support tree has been created
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// and before the supports had been sliced. (or the slicing has to be
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// repeated)
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if(po.m_config.pad_enable.getBool()) {
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// Get the distilled pad configuration from the config
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sla::PadConfig pcfg = make_pad_cfg(po.m_config);
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ExPolygons bp; // This will store the base plate of the pad.
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double pad_h = pcfg.full_height();
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const TriangleMesh &trmesh = po.transformed_mesh();
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if (!po.m_config.supports_enable.getBool() || pcfg.embed_object) {
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// No support (thus no elevation) or zero elevation mode
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// we sometimes call it "builtin pad" is enabled so we will
|
|
// get a sample from the bottom of the mesh and use it for pad
|
|
// creation.
|
|
sla::pad_blueprint(trmesh, bp, float(pad_h),
|
|
float(po.m_config.layer_height.getFloat()),
|
|
[this](){ throw_if_canceled(); });
|
|
}
|
|
|
|
po.m_supportdata->support_tree_ptr->add_pad(bp, pcfg);
|
|
auto &pad_mesh = po.m_supportdata->support_tree_ptr->retrieve_mesh(sla::MeshType::Pad);
|
|
|
|
if (!validate_pad(pad_mesh, pcfg))
|
|
throw Slic3r::SlicingError(
|
|
L("No pad can be generated for this model with the "
|
|
"current configuration"));
|
|
|
|
} else if(po.m_supportdata && po.m_supportdata->support_tree_ptr) {
|
|
po.m_supportdata->support_tree_ptr->remove_pad();
|
|
}
|
|
|
|
throw_if_canceled();
|
|
report_status(-1, L("Visualizing supports"), SlicingStatus::RELOAD_SCENE);
|
|
}
|
|
|
|
// Slicing the support geometries similarly to the model slicing procedure.
|
|
// If the pad had been added previously (see step "base_pool" than it will
|
|
// be part of the slices)
|
|
void SLAPrint::Steps::slice_supports(SLAPrintObject &po) {
|
|
auto& sd = po.m_supportdata;
|
|
|
|
if(sd) sd->support_slices.clear();
|
|
|
|
// Don't bother if no supports and no pad is present.
|
|
if (!po.m_config.supports_enable.getBool() && !po.m_config.pad_enable.getBool())
|
|
return;
|
|
|
|
if(sd && sd->support_tree_ptr) {
|
|
auto heights = reserve_vector<float>(po.m_slice_index.size());
|
|
|
|
for(auto& rec : po.m_slice_index) heights.emplace_back(rec.slice_level());
|
|
|
|
sd->support_slices = sd->support_tree_ptr->slice(
|
|
heights, float(po.config().slice_closing_radius.value));
|
|
}
|
|
|
|
for (size_t i = 0; i < sd->support_slices.size() && i < po.m_slice_index.size(); ++i)
|
|
po.m_slice_index[i].set_support_slice_idx(po, i);
|
|
|
|
apply_printer_corrections(po, soSupport);
|
|
|
|
// Using RELOAD_SLA_PREVIEW to tell the Plater to pass the update
|
|
// status to the 3D preview to load the SLA slices.
|
|
report_status(-2, "", SlicingStatus::RELOAD_SLA_PREVIEW);
|
|
}
|
|
|
|
using ClipperPoint = ClipperLib::IntPoint;
|
|
using ClipperPolygon = ClipperLib::Polygon; // see clipper_polygon.hpp in libnest2d
|
|
using ClipperPolygons = std::vector<ClipperPolygon>;
|
|
|
|
static ClipperPolygons polyunion(const ClipperPolygons &subjects)
|
|
{
|
|
ClipperLib::Clipper clipper;
|
|
|
|
bool closed = true;
|
|
|
|
for(auto& path : subjects) {
|
|
clipper.AddPath(path.Contour, ClipperLib::ptSubject, closed);
|
|
clipper.AddPaths(path.Holes, ClipperLib::ptSubject, closed);
|
|
}
|
|
|
|
auto mode = ClipperLib::pftPositive;
|
|
|
|
return libnest2d::clipper_execute(clipper, ClipperLib::ctUnion, mode, mode);
|
|
}
|
|
|
|
static ClipperPolygons polydiff(const ClipperPolygons &subjects, const ClipperPolygons& clips)
|
|
{
|
|
ClipperLib::Clipper clipper;
|
|
|
|
bool closed = true;
|
|
|
|
for(auto& path : subjects) {
|
|
clipper.AddPath(path.Contour, ClipperLib::ptSubject, closed);
|
|
clipper.AddPaths(path.Holes, ClipperLib::ptSubject, closed);
|
|
}
|
|
|
|
for(auto& path : clips) {
|
|
clipper.AddPath(path.Contour, ClipperLib::ptClip, closed);
|
|
clipper.AddPaths(path.Holes, ClipperLib::ptClip, closed);
|
|
}
|
|
|
|
auto mode = ClipperLib::pftPositive;
|
|
|
|
return libnest2d::clipper_execute(clipper, ClipperLib::ctDifference, mode, mode);
|
|
}
|
|
|
|
// get polygons for all instances in the object
|
|
static ClipperPolygons get_all_polygons(const SliceRecord& record, SliceOrigin o)
|
|
{
|
|
namespace sl = libnest2d::sl;
|
|
|
|
if (!record.print_obj()) return {};
|
|
|
|
ClipperPolygons polygons;
|
|
auto &input_polygons = record.get_slice(o);
|
|
auto &instances = record.print_obj()->instances();
|
|
bool is_lefthanded = record.print_obj()->is_left_handed();
|
|
polygons.reserve(input_polygons.size() * instances.size());
|
|
|
|
for (const ExPolygon& polygon : input_polygons) {
|
|
if(polygon.contour.empty()) continue;
|
|
|
|
for (size_t i = 0; i < instances.size(); ++i)
|
|
{
|
|
ClipperPolygon poly;
|
|
|
|
// We need to reverse if is_lefthanded is true but
|
|
bool needreverse = is_lefthanded;
|
|
|
|
// should be a move
|
|
poly.Contour.reserve(polygon.contour.size() + 1);
|
|
|
|
auto& cntr = polygon.contour.points;
|
|
if(needreverse)
|
|
for(auto it = cntr.rbegin(); it != cntr.rend(); ++it)
|
|
poly.Contour.emplace_back(it->x(), it->y());
|
|
else
|
|
for(auto& p : cntr)
|
|
poly.Contour.emplace_back(p.x(), p.y());
|
|
|
|
for(auto& h : polygon.holes) {
|
|
poly.Holes.emplace_back();
|
|
auto& hole = poly.Holes.back();
|
|
hole.reserve(h.points.size() + 1);
|
|
|
|
if(needreverse)
|
|
for(auto it = h.points.rbegin(); it != h.points.rend(); ++it)
|
|
hole.emplace_back(it->x(), it->y());
|
|
else
|
|
for(auto& p : h.points)
|
|
hole.emplace_back(p.x(), p.y());
|
|
}
|
|
|
|
if(is_lefthanded) {
|
|
for(auto& p : poly.Contour) p.X = -p.X;
|
|
for(auto& h : poly.Holes) for(auto& p : h) p.X = -p.X;
|
|
}
|
|
|
|
sl::rotate(poly, double(instances[i].rotation));
|
|
sl::translate(poly, ClipperPoint{instances[i].shift.x(),
|
|
instances[i].shift.y()});
|
|
|
|
polygons.emplace_back(std::move(poly));
|
|
}
|
|
}
|
|
|
|
return polygons;
|
|
}
|
|
|
|
void SLAPrint::Steps::initialize_printer_input()
|
|
{
|
|
auto &printer_input = m_print->m_printer_input;
|
|
|
|
// clear the rasterizer input
|
|
printer_input.clear();
|
|
|
|
size_t mx = 0;
|
|
for(SLAPrintObject * o : m_print->m_objects) {
|
|
if(auto m = o->get_slice_index().size() > mx) mx = m;
|
|
}
|
|
|
|
printer_input.reserve(mx);
|
|
|
|
auto eps = coord_t(SCALED_EPSILON);
|
|
|
|
for(SLAPrintObject * o : m_print->m_objects) {
|
|
coord_t gndlvl = o->get_slice_index().front().print_level() - ilhs;
|
|
|
|
for(const SliceRecord& slicerecord : o->get_slice_index()) {
|
|
if (!slicerecord.is_valid())
|
|
throw Slic3r::SlicingError(
|
|
L("There are unprintable objects. Try to "
|
|
"adjust support settings to make the "
|
|
"objects printable."));
|
|
|
|
coord_t lvlid = slicerecord.print_level() - gndlvl;
|
|
|
|
// Neat trick to round the layer levels to the grid.
|
|
lvlid = eps * (lvlid / eps);
|
|
|
|
auto it = std::lower_bound(printer_input.begin(),
|
|
printer_input.end(),
|
|
PrintLayer(lvlid));
|
|
|
|
if(it == printer_input.end() || it->level() != lvlid)
|
|
it = printer_input.insert(it, PrintLayer(lvlid));
|
|
|
|
|
|
it->add(slicerecord);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Merging the slices from all the print objects into one slice grid and
|
|
// calculating print statistics from the merge result.
|
|
void SLAPrint::Steps::merge_slices_and_eval_stats() {
|
|
|
|
initialize_printer_input();
|
|
|
|
auto &print_statistics = m_print->m_print_statistics;
|
|
auto &printer_config = m_print->m_printer_config;
|
|
auto &material_config = m_print->m_material_config;
|
|
auto &printer_input = m_print->m_printer_input;
|
|
|
|
print_statistics.clear();
|
|
|
|
// libnest calculates positive area for clockwise polygons, Slic3r is in counter-clockwise
|
|
auto areafn = [](const ClipperPolygon& poly) { return - libnest2d::sl::area(poly); };
|
|
|
|
const double area_fill = printer_config.area_fill.getFloat()*0.01;// 0.5 (50%);
|
|
const double fast_tilt = printer_config.fast_tilt_time.getFloat();// 5.0;
|
|
const double slow_tilt = printer_config.slow_tilt_time.getFloat();// 8.0;
|
|
|
|
const double init_exp_time = material_config.initial_exposure_time.getFloat();
|
|
const double exp_time = material_config.exposure_time.getFloat();
|
|
|
|
const int fade_layers_cnt = m_print->m_default_object_config.faded_layers.getInt();// 10 // [3;20]
|
|
|
|
const auto width = scaled<double>(printer_config.display_width.getFloat());
|
|
const auto height = scaled<double>(printer_config.display_height.getFloat());
|
|
const double display_area = width*height;
|
|
|
|
double supports_volume(0.0);
|
|
double models_volume(0.0);
|
|
|
|
double estim_time(0.0);
|
|
|
|
size_t slow_layers = 0;
|
|
size_t fast_layers = 0;
|
|
|
|
const double delta_fade_time = (init_exp_time - exp_time) / (fade_layers_cnt + 1);
|
|
double fade_layer_time = init_exp_time;
|
|
|
|
sla::ccr::SpinningMutex mutex;
|
|
using Lock = std::lock_guard<sla::ccr::SpinningMutex>;
|
|
|
|
// Going to parallel:
|
|
auto printlayerfn = [this,
|
|
// functions and read only vars
|
|
areafn, area_fill, display_area, exp_time, init_exp_time, fast_tilt, slow_tilt, delta_fade_time,
|
|
|
|
// write vars
|
|
&mutex, &models_volume, &supports_volume, &estim_time, &slow_layers,
|
|
&fast_layers, &fade_layer_time](size_t sliced_layer_cnt)
|
|
{
|
|
PrintLayer &layer = m_print->m_printer_input[sliced_layer_cnt];
|
|
|
|
// vector of slice record references
|
|
auto& slicerecord_references = layer.slices();
|
|
|
|
if(slicerecord_references.empty()) return;
|
|
|
|
// Layer height should match for all object slices for a given level.
|
|
const auto l_height = double(slicerecord_references.front().get().layer_height());
|
|
|
|
// Calculation of the consumed material
|
|
|
|
ClipperPolygons model_polygons;
|
|
ClipperPolygons supports_polygons;
|
|
|
|
size_t c = std::accumulate(layer.slices().begin(),
|
|
layer.slices().end(),
|
|
size_t(0),
|
|
[](size_t a, const SliceRecord &sr) {
|
|
return a + sr.get_slice(soModel).size();
|
|
});
|
|
|
|
model_polygons.reserve(c);
|
|
|
|
c = std::accumulate(layer.slices().begin(),
|
|
layer.slices().end(),
|
|
size_t(0),
|
|
[](size_t a, const SliceRecord &sr) {
|
|
return a + sr.get_slice(soModel).size();
|
|
});
|
|
|
|
supports_polygons.reserve(c);
|
|
|
|
for(const SliceRecord& record : layer.slices()) {
|
|
|
|
ClipperPolygons modelslices = get_all_polygons(record, soModel);
|
|
for(ClipperPolygon& p_tmp : modelslices) model_polygons.emplace_back(std::move(p_tmp));
|
|
|
|
ClipperPolygons supportslices = get_all_polygons(record, soSupport);
|
|
for(ClipperPolygon& p_tmp : supportslices) supports_polygons.emplace_back(std::move(p_tmp));
|
|
|
|
}
|
|
|
|
model_polygons = polyunion(model_polygons);
|
|
double layer_model_area = 0;
|
|
for (const ClipperPolygon& polygon : model_polygons)
|
|
layer_model_area += areafn(polygon);
|
|
|
|
if (layer_model_area < 0 || layer_model_area > 0) {
|
|
Lock lck(mutex); models_volume += layer_model_area * l_height;
|
|
}
|
|
|
|
if(!supports_polygons.empty()) {
|
|
if(model_polygons.empty()) supports_polygons = polyunion(supports_polygons);
|
|
else supports_polygons = polydiff(supports_polygons, model_polygons);
|
|
// allegedly, union of subject is done withing the diff according to the pftPositive polyFillType
|
|
}
|
|
|
|
double layer_support_area = 0;
|
|
for (const ClipperPolygon& polygon : supports_polygons)
|
|
layer_support_area += areafn(polygon);
|
|
|
|
if (layer_support_area < 0 || layer_support_area > 0) {
|
|
Lock lck(mutex); supports_volume += layer_support_area * l_height;
|
|
}
|
|
|
|
// Here we can save the expensively calculated polygons for printing
|
|
ClipperPolygons trslices;
|
|
trslices.reserve(model_polygons.size() + supports_polygons.size());
|
|
for(ClipperPolygon& poly : model_polygons) trslices.emplace_back(std::move(poly));
|
|
for(ClipperPolygon& poly : supports_polygons) trslices.emplace_back(std::move(poly));
|
|
|
|
layer.transformed_slices(polyunion(trslices));
|
|
|
|
// Calculation of the slow and fast layers to the future controlling those values on FW
|
|
|
|
const bool is_fast_layer = (layer_model_area + layer_support_area) <= display_area*area_fill;
|
|
const double tilt_time = is_fast_layer ? fast_tilt : slow_tilt;
|
|
|
|
{ Lock lck(mutex);
|
|
if (is_fast_layer)
|
|
fast_layers++;
|
|
else
|
|
slow_layers++;
|
|
|
|
|
|
// Calculation of the printing time
|
|
|
|
if (sliced_layer_cnt < 3)
|
|
estim_time += init_exp_time;
|
|
else if (fade_layer_time > exp_time)
|
|
{
|
|
fade_layer_time -= delta_fade_time;
|
|
estim_time += fade_layer_time;
|
|
}
|
|
else
|
|
estim_time += exp_time;
|
|
|
|
estim_time += tilt_time;
|
|
}
|
|
};
|
|
|
|
// sequential version for debugging:
|
|
// for(size_t i = 0; i < m_printer_input.size(); ++i) printlayerfn(i);
|
|
sla::ccr::for_each(size_t(0), printer_input.size(), printlayerfn);
|
|
|
|
auto SCALING2 = SCALING_FACTOR * SCALING_FACTOR;
|
|
print_statistics.support_used_material = supports_volume * SCALING2;
|
|
print_statistics.objects_used_material = models_volume * SCALING2;
|
|
|
|
// Estimated printing time
|
|
// A layers count o the highest object
|
|
if (printer_input.size() == 0)
|
|
print_statistics.estimated_print_time = std::nan("");
|
|
else
|
|
print_statistics.estimated_print_time = estim_time;
|
|
|
|
print_statistics.fast_layers_count = fast_layers;
|
|
print_statistics.slow_layers_count = slow_layers;
|
|
|
|
report_status(-2, "", SlicingStatus::RELOAD_SLA_PREVIEW);
|
|
}
|
|
|
|
// Rasterizing the model objects, and their supports
|
|
void SLAPrint::Steps::rasterize()
|
|
{
|
|
if(canceled() || !m_print->m_printer) return;
|
|
|
|
// coefficient to map the rasterization state (0-99) to the allocated
|
|
// portion (slot) of the process state
|
|
double sd = (100 - max_objstatus) / 100.0;
|
|
|
|
// slot is the portion of 100% that is realted to rasterization
|
|
unsigned slot = PRINT_STEP_LEVELS[slapsRasterize];
|
|
|
|
// pst: previous state
|
|
double pst = current_status();
|
|
|
|
double increment = (slot * sd) / m_print->m_printer_input.size();
|
|
double dstatus = current_status();
|
|
|
|
sla::ccr::SpinningMutex slck;
|
|
using Lock = std::lock_guard<sla::ccr::SpinningMutex>;
|
|
|
|
// procedure to process one height level. This will run in parallel
|
|
auto lvlfn =
|
|
[this, &slck, increment, &dstatus, &pst]
|
|
(sla::RasterBase& raster, size_t idx)
|
|
{
|
|
PrintLayer& printlayer = m_print->m_printer_input[idx];
|
|
if(canceled()) return;
|
|
|
|
for (const ClipperLib::Polygon& poly : printlayer.transformed_slices())
|
|
raster.draw(poly);
|
|
|
|
// Status indication guarded with the spinlock
|
|
{
|
|
Lock lck(slck);
|
|
dstatus += increment;
|
|
double st = std::round(dstatus);
|
|
if(st > pst) {
|
|
report_status(st, PRINT_STEP_LABELS(slapsRasterize));
|
|
pst = st;
|
|
}
|
|
}
|
|
};
|
|
|
|
// last minute escape
|
|
if(canceled()) return;
|
|
|
|
// Print all the layers in parallel
|
|
m_print->m_printer->draw_layers(m_print->m_printer_input.size(), lvlfn);
|
|
}
|
|
|
|
std::string SLAPrint::Steps::label(SLAPrintObjectStep step)
|
|
{
|
|
return OBJ_STEP_LABELS(step);
|
|
}
|
|
|
|
std::string SLAPrint::Steps::label(SLAPrintStep step)
|
|
{
|
|
return PRINT_STEP_LABELS(step);
|
|
}
|
|
|
|
double SLAPrint::Steps::progressrange(SLAPrintObjectStep step) const
|
|
{
|
|
return OBJ_STEP_LEVELS[step] * objectstep_scale;
|
|
}
|
|
|
|
double SLAPrint::Steps::progressrange(SLAPrintStep step) const
|
|
{
|
|
return PRINT_STEP_LEVELS[step] * (100 - max_objstatus) / 100.0;
|
|
}
|
|
|
|
void SLAPrint::Steps::execute(SLAPrintObjectStep step, SLAPrintObject &obj)
|
|
{
|
|
switch(step) {
|
|
case slaposHollowing: hollow_model(obj); break;
|
|
case slaposDrillHoles: drill_holes(obj); break;
|
|
case slaposObjectSlice: slice_model(obj); break;
|
|
case slaposSupportPoints: support_points(obj); break;
|
|
case slaposSupportTree: support_tree(obj); break;
|
|
case slaposPad: generate_pad(obj); break;
|
|
case slaposSliceSupports: slice_supports(obj); break;
|
|
case slaposCount: assert(false);
|
|
}
|
|
}
|
|
|
|
void SLAPrint::Steps::execute(SLAPrintStep step)
|
|
{
|
|
switch (step) {
|
|
case slapsMergeSlicesAndEval: merge_slices_and_eval_stats(); break;
|
|
case slapsRasterize: rasterize(); break;
|
|
case slapsCount: assert(false);
|
|
}
|
|
}
|
|
|
|
}
|