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Fix of Complete individual objects: "checker" bug #1911"

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Also fix of an arrangement issue for instances with some transformation
around X or Y axis applied.
This commit is contained in:
bubnikv
2019-04-18 12:45:43 +02:00
parent 63a0d1aeee
commit 5ec507e9ea
4 changed files with 34 additions and 35 deletions
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31
src/libslic3r/ModelArrange.cpp
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@@ -1,5 +1,6 @@
#include "ModelArrange.hpp"
#include "Model.hpp"
#include "Geometry.hpp"
#include "SVG.hpp"
#include <libnest2d.h>
@@ -551,7 +552,7 @@ ShapeData2D projectModelFromTop(const Slic3r::Model &model) {
ret.reserve(s);
for(ModelObject* objptr : model.objects) {
if(objptr) {
if (! objptr->instances.empty()) {
// TODO export the exact 2D projection. Cannot do it as libnest2d
// does not support concave shapes (yet).
@@ -572,23 +573,23 @@ ShapeData2D projectModelFromTop(const Slic3r::Model &model) {
clpath = Slic3rMultiPoint_to_ClipperPath(p);
}
Vec3d rotation0 = objptr->instances.front()->get_rotation();
rotation0(2) = 0.;
for(ModelInstance* objinst : objptr->instances) {
if(objinst) {
ClipperLib::Polygon pn;
pn.Contour = clpath;
ClipperLib::Polygon pn;
pn.Contour = clpath;
// Efficient conversion to item.
Item item(std::move(pn));
// Efficient conversion to item.
Item item(std::move(pn));
// Invalid geometries would throw exceptions when arranging
if(item.vertexCount() > 3) {
item.rotation(objinst->get_rotation(Z));
item.translation({
ClipperLib::cInt(objinst->get_offset(X)/SCALING_FACTOR),
ClipperLib::cInt(objinst->get_offset(Y)/SCALING_FACTOR)
});
ret.emplace_back(objinst, item);
}
// Invalid geometries would throw exceptions when arranging
if(item.vertexCount() > 3) {
item.rotation(float(Geometry::rotation_diff_z(rotation0, objinst->get_rotation()))),
item.translation({
ClipperLib::cInt(objinst->get_offset(X)/SCALING_FACTOR),
ClipperLib::cInt(objinst->get_offset(Y)/SCALING_FACTOR)
});
ret.emplace_back(objinst, item);
}
}
}