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Issue while performing Intersection operation on triangulated solids. #9467
Description
Issue Details
I am encountering an issue while performing the Intersection operation on triangulated solids.
For the attached dataset, the call to corefine_and_compute_intersection() fails in the attached prototype application. However, corefine_and_compute_union() and corefine_and_compute_difference() both complete successfully on the same dataset.
I have attached the dataset reproducing the issue and a small prototype application demonstrating the problem.
The issue appears to be specific to the intersection operation for this geometry. Could you please investigate whether this may be a robustness issue, limitation or a potential bug in the Boolean intersection implementation?
Any guidance or recommendations would be greatly appreciated.
Source Code
The dataset along with a small prototype application is attached.
Mesh_Boolean_Operations_using_CGAL_Library.zip
Environment
- Operating system (Windows/Mac/Linux, 32/64 bits): Windows 11 64 bit.
- Compiler: Visual Studio 2022
- Release or debug mode: Release
- Specific flags used (if any): /EHsc /O2 /std:c++17 /MD
- CGAL version: 6.0.2
- Boost version: Boost_1_84_0
- Other libraries versions if used (Eigen, TBB, etc.):
Activity
sloriot commentedon May 7, 2026
Please note that your meshes are oriented in such a way that the volumes they bound are infinite.
My guess is that you want the finite volumes. Calling
PMP::reverse_face_orientations()will fix that. Once orientation fixes, I could compute union, and the 2 differences. However the intersection contains some non-manifold edges and is not representable as 2-manifold.You can workaround that using this example. The API is not that nice, but if you are adventurous enough you can try the function provided in #9363 that works directly on triangle soups.
kundansharma1947 commentedon May 9, 2026
Thanks Sebastien for providing the solution. It works now.