3DPrinting/PrusaSlicer-NonPlainar
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Translation of ModelVolume as transformation component (without modifying the mesh)

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This commit is contained in:
Enrico Turri 2018-11-02 12:11:28 +01:00
parent 93ef2de667
commit 3aad8b5fd2
11 changed files with 384 additions and 39 deletions
src/libslic3r
Model.cpp

50
src/libslic3r/Model.cpp
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@ -624,8 +624,16 @@ const BoundingBoxf3& ModelObject::bounding_box() const
BoundingBoxf3 raw_bbox;
for (const ModelVolume *v : this->volumes)
if (v->is_model_part())
#if ENABLE_MODELVOLUME_TRANSFORM
{
TriangleMesh m = v->mesh;
m.transform(v->get_matrix().cast<float>());
raw_bbox.merge(m.bounding_box());
}
#else
// mesh.bounding_box() returns a cached value.
raw_bbox.merge(v->mesh.bounding_box());
#endif // ENABLE_MODELVOLUME_TRANSFORM
BoundingBoxf3 bb;
for (const ModelInstance *i : this->instances)
bb.merge(i->transform_bounding_box(raw_bbox));
@ -656,7 +664,15 @@ TriangleMesh ModelObject::raw_mesh() const
TriangleMesh mesh;
for (const ModelVolume *v : this->volumes)
if (v->is_model_part())
mesh.merge(v->mesh);
#if ENABLE_MODELVOLUME_TRANSFORM
{
TriangleMesh vol_mesh(v->mesh);
vol_mesh.transform(v->get_matrix().cast<float>());
mesh.merge(vol_mesh);
}
#else
mesh.merge(v->mesh);
#endif // ENABLE_MODELVOLUME_TRANSFORM
return mesh;
}
@ -699,12 +715,14 @@ void ModelObject::center_around_origin()
this->translate(shift);
this->origin_translation += shift;
#if !ENABLE_MODELVOLUME_TRANSFORM
if (!this->instances.empty()) {
for (ModelInstance *i : this->instances) {
i->set_offset(i->get_offset() - shift);
}
this->invalidate_bounding_box();
}
#endif // !ENABLE_MODELVOLUME_TRANSFORM
}
void ModelObject::ensure_on_bed()
@ -731,8 +749,12 @@ void ModelObject::translate(double x, double y, double z)
{
for (ModelVolume *v : this->volumes)
{
#if ENABLE_MODELVOLUME_TRANSFORM
v->translate(x, y, z);
#else
v->mesh.translate(float(x), float(y), float(z));
v->m_convex_hull.translate(float(x), float(y), float(z));
#endif // ENABLE_MODELVOLUME_TRANSFORM
}
if (m_bounding_box_valid)
@ -918,17 +940,29 @@ double ModelObject::get_instance_min_z(size_t instance_idx) const
double min_z = DBL_MAX;
ModelInstance* inst = instances[instance_idx];
const Transform3d& m = inst->get_matrix(true);
const Transform3d& mi = inst->get_matrix(true);
for (ModelVolume *v : volumes)
for (const ModelVolume* v : volumes)
{
#if ENABLE_MODELVOLUME_TRANSFORM
Transform3d mv = mi * v->get_matrix();
const TriangleMesh& hull = v->get_convex_hull();
for (uint32_t f = 0; f < hull.stl.stats.number_of_facets; ++f)
{
const stl_facet* facet = hull.stl.facet_start + f;
min_z = std::min(min_z, Vec3d::UnitZ().dot(mv * facet->vertex[0].cast<double>()));
min_z = std::min(min_z, Vec3d::UnitZ().dot(mv * facet->vertex[1].cast<double>()));
min_z = std::min(min_z, Vec3d::UnitZ().dot(mv * facet->vertex[2].cast<double>()));
}
#else
for (uint32_t f = 0; f < v->mesh.stl.stats.number_of_facets; ++f)
{
const stl_facet* facet = v->mesh.stl.facet_start + f;
min_z = std::min(min_z, Vec3d::UnitZ().dot(m * facet->vertex[0].cast<double>()));
min_z = std::min(min_z, Vec3d::UnitZ().dot(m * facet->vertex[1].cast<double>()));
min_z = std::min(min_z, Vec3d::UnitZ().dot(m * facet->vertex[2].cast<double>()));
min_z = std::min(min_z, Vec3d::UnitZ().dot(mi * facet->vertex[0].cast<double>()));
min_z = std::min(min_z, Vec3d::UnitZ().dot(mi * facet->vertex[1].cast<double>()));
min_z = std::min(min_z, Vec3d::UnitZ().dot(mi * facet->vertex[2].cast<double>()));
}
#endif // ENABLE_MODELVOLUME_TRANSFORM
}
return min_z + inst->get_offset(Z);
@ -1115,8 +1149,12 @@ void ModelVolume::translate(double x, double y, double z)
void ModelVolume::translate(const Vec3d& displacement)
{
#if ENABLE_MODELVOLUME_TRANSFORM
m_transformation.set_offset(m_transformation.get_offset() + displacement);
#else
mesh.translate((float)displacement(0), (float)displacement(1), (float)displacement(2));
m_convex_hull.translate((float)displacement(0), (float)displacement(1), (float)displacement(2));
#endif // ENABLE_MODELVOLUME_TRANSFORM
}
#if !ENABLE_MODELVOLUME_TRANSFORM