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FIX> infinite loop because intersection is out of line

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place on line mast be perpendicular to source line
but NOT to edge
This commit is contained in:
Filip Sykala 2021-04-16 21:42:15 +02:00 committed by Lukas Matena
parent b6ee9f4368
commit d6616be202
1 changed files with 4 additions and 3 deletions
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7
src/libslic3r/SLA/SupportIslands/VoronoiGraphUtils.cpp
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@ -967,11 +967,9 @@ std::pair<Slic3r::Point, Slic3r::Point> VoronoiGraphUtils::point_on_lines(
bool is_linear = edge->is_linear();
Point edge_point = create_edge_point(position);
Point dir = to_point(edge->vertex0()) - to_point(edge->vertex1());
Line intersecting_line(edge_point, edge_point + PointUtils::perp(dir));
auto point_on_line = [&](const VD::edge_type *edge) -> Point {
assert(edge->is_finite());
assert(edge->is_finite());
const VD::cell_type *cell = edge->cell();
size_t line_index = cell->source_index();
const Line &line = lines[line_index];
@ -984,6 +982,9 @@ std::pair<Slic3r::Point, Slic3r::Point> VoronoiGraphUtils::point_on_lines(
if (cell->source_category() == SOURCE_CATEGORY_SEGMENT_END_POINT) {
return line.b;
}
Point dir = LineUtils::direction(line);
Line intersecting_line(edge_point, edge_point + PointUtils::perp(dir));
std::optional<Vec2d> intersection = LineUtils::intersection(line, intersecting_line);
assert(intersection.has_value());
return intersection->cast<coord_t>();