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Tech ENABLE_ALLOW_NEGATIVE_Z -> ModelObject::convex_hull_2d() and sequential_print_horizontal_clearance_valid() modified to take in account for sinking instances

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enricoturri1966 2021-05-14 15:02:54 +02:00
parent 221af991c2
commit ca14ea4c33
2 changed files with 19 additions and 3 deletions
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10
src/libslic3r/Model.cpp
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@ -901,13 +901,19 @@ Polygon ModelObject::convex_hull_2d(const Transform3d &trafo_instance) const
for (const stl_facet &facet : stl.facet_start)
for (size_t j = 0; j < 3; ++ j) {
Vec3d p = trafo * facet.vertex[j].cast<double>();
pts.emplace_back(coord_t(scale_(p.x())), coord_t(scale_(p.y())));
#if ENABLE_ALLOW_NEGATIVE_Z
if (p.z() >= 0.0)
#endif // ENABLE_ALLOW_NEGATIVE_Z
pts.emplace_back(coord_t(scale_(p.x())), coord_t(scale_(p.y())));
}
} else {
// Using the shared vertices should be a bit quicker than using the STL faces.
for (size_t i = 0; i < its.vertices.size(); ++ i) {
Vec3d p = trafo * its.vertices[i].cast<double>();
pts.emplace_back(coord_t(scale_(p.x())), coord_t(scale_(p.y())));
#if ENABLE_ALLOW_NEGATIVE_Z
if (p.z() >= 0.0)
#endif // ENABLE_ALLOW_NEGATIVE_Z
pts.emplace_back(coord_t(scale_(p.x())), coord_t(scale_(p.y())));
}
}
}

12
src/libslic3r/Print.cpp
View file

@ -371,6 +371,15 @@ static inline bool sequential_print_horizontal_clearance_valid(const Print &prin
// FIXME: Arrangement has different parameters for offsetting (jtMiter, limit 2)
// which causes that the warning will be showed after arrangement with the
// appropriate object distance. Even if I set this to jtMiter the warning still shows up.
#if ENABLE_ALLOW_NEGATIVE_Z
it_convex_hull = map_model_object_to_convex_hull.emplace_hint(it_convex_hull, model_object_id,
offset(print_object->model_object()->convex_hull_2d(
Geometry::assemble_transform({ 0.0, 0.0, model_instance0->get_offset().z() }, model_instance0->get_rotation(), model_instance0->get_scaling_factor(), model_instance0->get_mirror())),
// Shrink the extruder_clearance_radius a tiny bit, so that if the object arrangement algorithm placed the objects
// exactly by satisfying the extruder_clearance_radius, this test will not trigger collision.
float(scale_(0.5 * print.config().extruder_clearance_radius.value - EPSILON)),
jtRound, float(scale_(0.1))).front());
#else
it_convex_hull = map_model_object_to_convex_hull.emplace_hint(it_convex_hull, model_object_id,
offset(print_object->model_object()->convex_hull_2d(
Geometry::assemble_transform(Vec3d::Zero(), model_instance0->get_rotation(), model_instance0->get_scaling_factor(), model_instance0->get_mirror())),
@ -378,7 +387,8 @@ static inline bool sequential_print_horizontal_clearance_valid(const Print &prin
// exactly by satisfying the extruder_clearance_radius, this test will not trigger collision.
float(scale_(0.5 * print.config().extruder_clearance_radius.value - EPSILON)),
jtRound, float(scale_(0.1))).front());
}
#endif // ENABLE_ALLOW_NEGATIVE_Z
}
// Make a copy, so it may be rotated for instances.
Polygon convex_hull0 = it_convex_hull->second;
double z_diff = Geometry::rotation_diff_z(model_instance0->get_rotation(), print_object->instances().front().model_instance->get_rotation());