3DPrinting/PrusaSlicer-NonPlainar
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Add minimal value for glyph flatness to not create huge amount of points on curve

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Fix for font: TREFOIL.TTF issue 74
This commit is contained in:
Filip Sykala - NTB T15p 2022-10-13 13:30:22 +02:00
parent c60e626cbf
commit ce71144c7c
1 changed files with 8 additions and 3 deletions
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11
src/libslic3r/Emboss.cpp
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@ -280,10 +280,12 @@ ExPolygons Emboss::heal_shape(const Polygons &shape) {
// fix of self intersections // fix of self intersections
// http://www.angusj.com/delphi/clipper/documentation/Docs/Units/ClipperLib/Functions/SimplifyPolygon.htm // http://www.angusj.com/delphi/clipper/documentation/Docs/Units/ClipperLib/Functions/SimplifyPolygon.htm
ClipperLib::Paths paths = ClipperLib::SimplifyPolygons(ClipperUtils::PolygonsProvider(shape), ClipperLib::pftNonZero); ClipperLib::Paths paths = ClipperLib::SimplifyPolygons(ClipperUtils::PolygonsProvider(shape), ClipperLib::pftNonZero);
ClipperLib::CleanPolygons(paths); const double clean_distance = 1.415; // little grater than sqrt(2)
ClipperLib::CleanPolygons(paths, clean_distance);
Polygons polygons = to_polygons(paths); Polygons polygons = to_polygons(paths);
// do not remove all duplicits but do it better way // Do not remove all duplicits but do it better way
// Overlap all duplicit points by rectangle 3x3
Points duplicits = collect_duplications(to_points(polygons)); Points duplicits = collect_duplications(to_points(polygons));
if (!duplicits.empty()) { if (!duplicits.empty()) {
polygons.reserve(polygons.size() + duplicits.size()); polygons.reserve(polygons.size() + duplicits.size());
@ -302,7 +304,6 @@ ExPolygons Emboss::heal_shape(const Polygons &shape) {
return res; return res;
} }
#define HEAL_CLOSE_POINTS
bool Emboss::heal_shape(ExPolygons &shape, unsigned max_iteration) bool Emboss::heal_shape(ExPolygons &shape, unsigned max_iteration)
{ {
if (shape.empty()) return true; if (shape.empty()) return true;
@ -478,6 +479,10 @@ const Emboss::Glyph* priv::get_glyph(
} }
float flatness = static_cast<float>(font.infos[font_index].ascent * RESOLUTION / font_prop.size_in_mm); float flatness = static_cast<float>(font.infos[font_index].ascent * RESOLUTION / font_prop.size_in_mm);
// Fix for very small flatness because it create huge amount of points from curve
if (flatness < RESOLUTION) flatness = RESOLUTION;
std::optional<Emboss::Glyph> glyph_opt = std::optional<Emboss::Glyph> glyph_opt =
priv::get_glyph(*font_info_opt, unicode, flatness); priv::get_glyph(*font_info_opt, unicode, flatness);