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FIX: update_sequential_clearance may crash due to clipper's bug
m_hull_2d_cache must be set since later on we'll use its point number, which is a very large number when not inited. This will cause a fatal out-of-memory error. Jira: STUDIO-2452 Change-Id: I9b397a53bdcdf555eccf745f1b96786010ebe309 (cherry picked from commit 6802be53709649e75a1562d29e14559c766d427b)
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1 changed files with 10 additions and 10 deletions
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@ -4964,20 +4964,20 @@ void GLCanvas3D::update_sequential_clearance()
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for (size_t i = 0; i < m_model->objects.size(); ++i) {
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ModelObject* model_object = m_model->objects[i];
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ModelInstance* model_instance0 = model_object->instances.front();
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auto tmp = offset(model_object->convex_hull_2d(Geometry::assemble_transform({ 0.0, 0.0, model_instance0->get_offset().z() }, model_instance0->get_rotation(),
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model_instance0->get_scaling_factor(), model_instance0->get_mirror())),
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Polygon hull_no_offset = model_object->convex_hull_2d(Geometry::assemble_transform({ 0.0, 0.0, model_instance0->get_offset().z() }, model_instance0->get_rotation(),
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model_instance0->get_scaling_factor(), model_instance0->get_mirror()));
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auto tmp = offset(hull_no_offset,
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// Shrink the extruder_clearance_radius a tiny bit, so that if the object arrangement algorithm placed the objects
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// exactly by satisfying the extruder_clearance_radius, this test will not trigger collision.
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shrink_factor,
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jtRound, mitter_limit);
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if (!tmp.empty()) { // tmp may be empty due to clipper's bug, see STUDIO-2452
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Polygon hull_2d = tmp.front();
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Pointf3s& cache_hull_2d = m_sequential_print_clearance.m_hull_2d_cache.emplace_back(Pointf3s());
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cache_hull_2d.reserve(hull_2d.points.size());
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for (const Point& p : hull_2d.points) {
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cache_hull_2d.emplace_back(unscale<double>(p.x()), unscale<double>(p.y()), 0.0);
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}
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}
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Polygon hull_2d = !tmp.empty() ? tmp.front() : hull_no_offset;// tmp may be empty due to clipper's bug, see STUDIO-2452
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Pointf3s& cache_hull_2d = m_sequential_print_clearance.m_hull_2d_cache.emplace_back(Pointf3s());
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cache_hull_2d.reserve(hull_2d.points.size());
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for (const Point& p : hull_2d.points) {
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cache_hull_2d.emplace_back(unscale<double>(p.x()), unscale<double>(p.y()), 0.0);
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}
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}
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m_sequential_print_clearance_first_displacement = false;
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}
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