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FIX: the object move a distance when laying on face 

Change-Id: Iddea713d2237e1cc232a4ce114b17d3fb7c0d8b0
(cherry picked from commit 5e09aceca1794ea2be5e7718a5b3f29f971676a9)
This commit is contained in:
zhimin.zeng 2022-11-23 17:42:22 +08:00 committed by Lane.Wei
parent 36d08e1849
commit 6ae575d885
1 changed files with 23 additions and 0 deletions
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23
src/libslic3r/Format/bbs_3mf.cpp
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@ -1661,6 +1661,29 @@ void PlateData::parse_filament_info(GCodeProcessorResult *result)
return false;
}
// If instances contain a single volume, the volume offset should be 0,0,0
// This equals to say that instance world position and volume world position should match
// Correct all instances/volumes for which this does not hold
for (int obj_id = 0; obj_id < int(model.objects.size()); ++obj_id) {
ModelObject *o = model.objects[obj_id];
if (o->volumes.size() == 1) {
ModelVolume * v = o->volumes.front();
const Slic3r::Geometry::Transformation &first_inst_trafo = o->instances.front()->get_transformation();
const Vec3d world_vol_offset = (first_inst_trafo * v->get_transformation()).get_offset();
const Vec3d world_inst_offset = first_inst_trafo.get_offset();
if (!world_vol_offset.isApprox(world_inst_offset)) {
const Slic3r::Geometry::Transformation &vol_trafo = v->get_transformation();
for (int inst_id = 0; inst_id < int(o->instances.size()); ++inst_id) {
ModelInstance * i = o->instances[inst_id];
const Slic3r::Geometry::Transformation &inst_trafo = i->get_transformation();
i->set_offset((inst_trafo * vol_trafo).get_offset());
}
v->set_offset(Vec3d::Zero());
}
}
}
int object_idx = 0;
for (ModelObject* o : model.objects) {
int volume_idx = 0;