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| author | don bright <hugh.m.bright@gmail.com> | 2012-08-20 23:33:13 (GMT) |
|---|---|---|
| committer | don bright <hugh.m.bright@gmail.com> | 2012-08-20 23:33:13 (GMT) |
| commit | f1d4a52f4cc01843f5d7c40499fcfe44cc82712f (patch) | |
| tree | 2d6717a6deeed4157d84b07f45a41cc9d8f3b9e2 /src/CGALEvaluator.cc | |
| parent | 0170923b9bb51e198c8a3ad1b98ca5ed74a6c77d (diff) | |
dont crash if there's infinity or NaN in transformation matrix
Diffstat (limited to 'src/CGALEvaluator.cc')
| -rw-r--r-- | src/CGALEvaluator.cc | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/CGALEvaluator.cc b/src/CGALEvaluator.cc index ee04e05..c84d21f 100644 --- a/src/CGALEvaluator.cc +++ b/src/CGALEvaluator.cc @@ -241,6 +241,15 @@ Response CGALEvaluator::visit(State &state, const TransformNode &node) // First union all children N = applyToChildren(node, CGE_UNION); + if ( matrix_contains_infinity( node.matrix ) ) { + PRINT("Warning: Transformation matrix contains Infinity - removing object."); + N.reset(); + } + if ( matrix_contains_nan( node.matrix ) ) { + PRINT("Warning: Transformation matrix contains Not-a-Number - removing object"); + N.reset(); + } + // Then apply transform // If there is no geometry under the transform, N will be empty and of dim 0, // just just silently ignore such nodes @@ -248,7 +257,7 @@ Response CGALEvaluator::visit(State &state, const TransformNode &node) // Unfortunately CGAL provides no transform method for CGAL_Nef_polyhedron2 // 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! - + Eigen::Matrix2f testmat; testmat << node.matrix(0,0), node.matrix(0,1), node.matrix(1,0), node.matrix(1,1); if (testmat.determinant() == 0) { |