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-rw-r--r--src/CGALEvaluator.cc58
-rw-r--r--src/CGAL_Nef_polyhedron.cc2
-rw-r--r--src/PolySetCGALEvaluator.cc28
-rw-r--r--src/transform.cc9
-rw-r--r--src/value.cc4
-rw-r--r--src/value.h2
6 files changed, 61 insertions, 42 deletions
diff --git a/src/CGALEvaluator.cc b/src/CGALEvaluator.cc
index 15fa746..0e849a8 100644
--- a/src/CGALEvaluator.cc
+++ b/src/CGALEvaluator.cc
@@ -252,31 +252,45 @@ Response CGALEvaluator::visit(State &state, const TransformNode &node)
// objects. So we convert in to our internal 2d data format, transform it,
// tesselate it and create a new CGAL_Nef_polyhedron2 from it.. What a hack!
- CGAL_Aff_transformation2 t(
- node.matrix(0,0), node.matrix(0,1), node.matrix(0,3),
- node.matrix(1,0), node.matrix(1,1), node.matrix(1,3), node.matrix(3,3));
-
- DxfData *dd = N.convertToDxfData();
- for (size_t i=0; i < dd->points.size(); i++) {
- CGAL_Kernel2::Point_2 p = CGAL_Kernel2::Point_2(dd->points[i][0], dd->points[i][1]);
- p = t.transform(p);
- dd->points[i][0] = to_double(p.x());
- dd->points[i][1] = to_double(p.y());
+ Eigen::Matrix2f testmat;
+ testmat << node.matrix(0,0), node.matrix(0,1), node.matrix(1,0), node.matrix(1,1);
+ if (testmat.determinant() == 0) {
+ PRINT("Warning: Scaling a 2D object with 0 - removing object");
+ N.p2.reset();
+ }
+ else {
+ CGAL_Aff_transformation2 t(
+ node.matrix(0,0), node.matrix(0,1), node.matrix(0,3),
+ node.matrix(1,0), node.matrix(1,1), node.matrix(1,3), node.matrix(3,3));
+
+ DxfData *dd = N.convertToDxfData();
+ for (size_t i=0; i < dd->points.size(); i++) {
+ CGAL_Kernel2::Point_2 p = CGAL_Kernel2::Point_2(dd->points[i][0], dd->points[i][1]);
+ p = t.transform(p);
+ dd->points[i][0] = to_double(p.x());
+ dd->points[i][1] = to_double(p.y());
+ }
+
+ PolySet ps;
+ ps.is2d = true;
+ dxf_tesselate(&ps, *dd, 0, true, false, 0);
+
+ N = evaluateCGALMesh(ps);
+ delete dd;
}
-
- PolySet ps;
- ps.is2d = true;
- dxf_tesselate(&ps, *dd, 0, true, false, 0);
-
- N = evaluateCGALMesh(ps);
- delete dd;
}
else if (N.dim == 3) {
- CGAL_Aff_transformation t(
- node.matrix(0,0), node.matrix(0,1), node.matrix(0,2), node.matrix(0,3),
- node.matrix(1,0), node.matrix(1,1), node.matrix(1,2), node.matrix(1,3),
- node.matrix(2,0), node.matrix(2,1), node.matrix(2,2), node.matrix(2,3), node.matrix(3,3));
- N.p3->transform(t);
+ if (node.matrix.matrix().determinant() == 0) {
+ PRINT("Warning: Scaling a 3D object with 0 - removing object");
+ N.p3.reset();
+ }
+ else {
+ CGAL_Aff_transformation t(
+ node.matrix(0,0), node.matrix(0,1), node.matrix(0,2), node.matrix(0,3),
+ node.matrix(1,0), node.matrix(1,1), node.matrix(1,2), node.matrix(1,3),
+ node.matrix(2,0), node.matrix(2,1), node.matrix(2,2), node.matrix(2,3), node.matrix(3,3));
+ N.p3->transform(t);
+ }
}
}
else {
diff --git a/src/CGAL_Nef_polyhedron.cc b/src/CGAL_Nef_polyhedron.cc
index 04783e5..ba298ad 100644
--- a/src/CGAL_Nef_polyhedron.cc
+++ b/src/CGAL_Nef_polyhedron.cc
@@ -61,6 +61,8 @@ CGAL_Nef_polyhedron &CGAL_Nef_polyhedron::minkowski(const CGAL_Nef_polyhedron &o
int CGAL_Nef_polyhedron::weight() const
{
+ if (this->empty()) return 0;
+
size_t memsize = sizeof(CGAL_Nef_polyhedron);
if (this->dim == 2) {
memsize += sizeof(CGAL_Nef_polyhedron2) +
diff --git a/src/PolySetCGALEvaluator.cc b/src/PolySetCGALEvaluator.cc
index 81ae31e..6ed1ab4 100644
--- a/src/PolySetCGALEvaluator.cc
+++ b/src/PolySetCGALEvaluator.cc
@@ -281,12 +281,14 @@ PolySet *PolySetCGALEvaluator::evaluatePolySet(const LinearExtrudeNode &node)
BOOST_FOREACH (AbstractNode * v, node.getChildren()) {
if (v->modinst->isBackground()) continue;
CGAL_Nef_polyhedron N = this->cgalevaluator.evaluateCGALMesh(*v);
- if (N.dim != 2) {
- PRINT("ERROR: linear_extrude() is not defined for 3D child objects!");
- }
- else {
- if (sum.empty()) sum = N.copy();
- else sum += N;
+ if (!N.empty()) {
+ if (N.dim != 2) {
+ PRINT("ERROR: linear_extrude() is not defined for 3D child objects!");
+ }
+ else {
+ if (sum.empty()) sum = N.copy();
+ else sum += N;
+ }
}
}
@@ -379,12 +381,14 @@ PolySet *PolySetCGALEvaluator::evaluatePolySet(const RotateExtrudeNode &node)
BOOST_FOREACH (AbstractNode * v, node.getChildren()) {
if (v->modinst->isBackground()) continue;
CGAL_Nef_polyhedron N = this->cgalevaluator.evaluateCGALMesh(*v);
- if (N.dim != 2) {
- PRINT("ERROR: rotate_extrude() is not defined for 3D child objects!");
- }
- else {
- if (sum.empty()) sum = N.copy();
- else sum += N;
+ if (!N.empty()) {
+ if (N.dim != 2) {
+ PRINT("ERROR: rotate_extrude() is not defined for 3D child objects!");
+ }
+ else {
+ if (sum.empty()) sum = N.copy();
+ else sum += N;
+ }
}
}
diff --git a/src/transform.cc b/src/transform.cc
index f5038b1..c2ac194 100644
--- a/src/transform.cc
+++ b/src/transform.cc
@@ -87,11 +87,10 @@ AbstractNode *TransformModule::evaluate(const Context *ctx, const ModuleInstanti
{
Vector3d scalevec(1,1,1);
Value v = c.lookup_variable("v");
- v.getnum(scalevec[0]);
- v.getnum(scalevec[1]);
- v.getnum(scalevec[2]);
- v.getv3(scalevec[0], scalevec[1], scalevec[2]);
- if (scalevec[2] == 0) scalevec[2] = 1;
+ if (!v.getv3(scalevec[0], scalevec[1], scalevec[2], 1.0)) {
+ double num;
+ if (v.getnum(num)) scalevec.setConstant(num);
+ }
node->matrix.scale(scalevec);
}
else if (this->type == ROTATE)
diff --git a/src/value.cc b/src/value.cc
index c9dbd55..93c4d5e 100644
--- a/src/value.cc
+++ b/src/value.cc
@@ -359,11 +359,11 @@ bool Value::getv2(double &x, double &y) const
return true;
}
-bool Value::getv3(double &x, double &y, double &z) const
+bool Value::getv3(double &x, double &y, double &z, double defaultval) const
{
if (this->type == VECTOR && this->vec.size() == 2) {
if (getv2(x, y)) {
- z = 0;
+ z = defaultval;
return true;
}
return false;
diff --git a/src/value.h b/src/value.h
index a2cfbdf..4a67fbc 100644
--- a/src/value.h
+++ b/src/value.h
@@ -73,7 +73,7 @@ public:
bool getnum(double &v) const;
bool getv2(double &x, double &y) const;
- bool getv3(double &x, double &y, double &z) const;
+ bool getv3(double &x, double &y, double &z, double defaultval = 0.0) const;
std::string toString() const;
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