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ENH: don't load empty mesh when loading step

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This is fix for crash issue for some specific step
file, which generate empty mesh.

Signed-off-by: salt.wei <salt.wei@bambulab.com>
Change-Id: I910e3d2da670b623570665265a12361492bd706b
This commit is contained in:
salt.wei 2022-09-22 13:50:18 +08:00 • committed by Lane.Wei
parent 1d1e12901b
commit 6a8d42359a
1 changed files with 11 additions and 8 deletions
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5
src/libslic3r/Format/STEP.cpp
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@ -275,7 +275,7 @@ bool load_step(const char *path, Model *model, ImportStepProgressFn stepFn, Step
} }
} }
if (aNbTriangles == 0) if (aNbTriangles == 0 || aNbNodes == 0)
// BBS: No triangulation on the shape. // BBS: No triangulation on the shape.
continue; continue;
@ -354,6 +354,8 @@ bool load_step(const char *path, Model *model, ImportStepProgressFn stepFn, Step
} }
} }
//BBS: maybe mesh is empty from step file. Don't add
if (stl[i].stats.number_of_facets > 0) {
TriangleMesh triangle_mesh; TriangleMesh triangle_mesh;
triangle_mesh.from_stl(stl[i]); triangle_mesh.from_stl(stl[i]);
ModelVolume* new_volume = new_object->add_volume(std::move(triangle_mesh)); ModelVolume* new_volume = new_object->add_volume(std::move(triangle_mesh));
@ -362,6 +364,7 @@ bool load_step(const char *path, Model *model, ImportStepProgressFn stepFn, Step
new_volume->source.object_idx = (int)model->objects.size() - 1; new_volume->source.object_idx = (int)model->objects.size() - 1;
new_volume->source.volume_idx = (int)new_object->volumes.size() - 1; new_volume->source.volume_idx = (int)new_object->volumes.size() - 1;
} }
}
shapeTool.reset(nullptr); shapeTool.reset(nullptr);
application->Close(document); application->Close(document);