1. Unify the faces classification procedure of the methods BOPAlgo_BuilderSolid::PerformInternalShapes() and BOPAlgo_Builder::FillIn3DParts() using the latter as a base.
The new method BOPAlgo_Tools::ClassifyFaces() has been created for that. Both methods mentioned above have been updated to use the new one.
2. Forced intersection of the edges after enlarge of the tolerance values of their vertices during the operation has been added into BOP's intersection algorithm (BOPAlgo_PaveFiller).
BOPAlgo_Tools::PerformCommonBlocks() method has been updated to avoid loosing faces of the already created Common blocks.
As a result the case "boolean gdml_private ZF6" became more stable, because the intermediate result is no longer invalid.
Additional test cases have been added to verify this improvement (bugs modalg_7 bug29322_*)
3. When building PCurves for edges on faces, check the existing PCurves on its validity for periodic surfaces and adjust PCurves if necessary.
The improvement helps to produce the valid result in the test case "bugs moddata_1 bug152".
4. Avoid creation of empty Edge-Edge interference if the intersection point is lying close to a shared vertex.
The improvement helps obtain the valid result of the "bopcheck" operation in the test case "bugs modalg_7 bug27683".
Adjustment of the test case to current behavior:
- Avoid usage of the self-intersecting torus in the test case "boolean gdml_public A9".
- Fix the input shape in the test case "boolean bopfuse_complex H1" to provide valid result.
- Test cases "bugs moddata_1 bug152_1 bug152_2" have been unified into single test case "bugs moddata_1 bug152". Now, the case rebuilds invalid input data and performs all types of Boolean operations.
- Change the test case "bugs modalg_7 bug22750" to produce valid intermediate results used in subsequent operations as arguments.
- The following test cases are improvements:
- "boolean volumemaker D8"
- "boolean volumemaker G1"
- "bugs modalg_7 bug27683"
Test for 0027049: Make non-destructive mode be defined by default in Boolean operations
Test for 0027052: Test boolean gdml_private ZI5 failure
Test for 0027069: IGES parser does not recognize comments in Parameters section
Test for 0027090: Point is classified IN solid but actually it is OUT
Test for 0027170: Reading STEP files produces invalid shapes
Test for 0027186: IGES - reconsider creation of Undefined entity in case of failure
Test for 0027214: Duplicate of test cases
Test for 0027224: Incorrect result of boolean operation in boolean bcut_complex Q1 test case
Test for 0027227: Intersection curve is not continued to the surface boundary
Test for 0027246: ShapeFix_Shape destroys shape
Test for 0027251: Shape becomes invalid when exported to STEP and imported back
Test for 0027316: exception when XAddShape
Test for 0027378: BRepLib_MakeFace produces invalid faces on periodic surfaces in case the given parametrization does not match the default
Test for 0027390: Box and Ellipsoid shape boolean cut and common introduce invalid result.
Test for 0028119: Blend fails on fused identical but shifted tori
Test for 0028144: Step reader - regression in comparison of version OCCT654
Test for 0028151: Sewing faces results in a shell with very big tolerance
Test for 0027160: Weird results of the pipe algorithm
Test for 0027623: Cannot find intersection line between two trimmed planar surfaces
Test for 0027683: Inaccurate result by bopcut
Test for 0027687: Section between shells of hull and deck is not closed
Test for 0027711: Blend-on-blend corrupts the shape
Test for 0027784: Thickness fails on cylinder with draft
Test for 0027908: Exception during offset computation
Test for 0027909: Exception during offset computation
Test for 0027910: Sharing between edges was lost after offset operation
Test for 0027911: Exception during offset computation
Test for 0027912: Exception during offset computation
Test for 0027928: BOP common produces empty compound
Test for 0027948: Cut produces unexcpected shape
Test for 0027950: Result of intersection algorithm depends too much on surface trim bounds
Test for 0027701: Crash when export empty solid to STEP
Test for 0027722: STEP error for Ellipse revol shape