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mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-04-03 17:56:21 +03:00

3 Commits

Author SHA1 Message Date
emv
948fe6ca88 0028747: Incorrect result of the section operation after edge refinement
Implementation of the method for simplification of the result of Boolean Operation on the API level.
The method BRepAlgoAPI_BuilderAlgo::SimplifyResult has been added, so the derived classes such as BooleanOpeation and Splitter can also use this method.
The result shape simplification should be called after the operation is done. The simplification is performed by the means of ShapeUpgrade_UnifySameDomain algorithm.

Draw command "bsimplify" has been added to control the simplification options.
Documentation for new functionality and draw commands controlling the options of Boolean operations.
Test cases for the new functionality.

Side-effect change:
The algorithms in Boolean component have been changed to use the BRepTools_History as a History tool.
Now it became possible to disable the collection of shapes modifications during Boolean Operations, which may be useful for performance sake (in draw the option is controlled by *setfillhistory* command).
Draw command "unifysamedom" has been changed to accept the angular tolerance in degrees instead of radians.
2018-06-14 14:03:06 +03:00
emv
81a55a6996 0029333: Boolean Operations - Prevent modification of the input shapes in case their sub-shapes have not been modified
Prevent modification of the input shapes in destructive mode in case their sub-shapes have not been modified:
1. Prevent edge splitting for the pave blocks with old vertices if it is possible to use the existing edge (*BOPAlgo_PaveFiller::MakeSplitEdges*);
2. Prevent creation of the new containers (WIRES/SHELLS/COMPSOLIDS) if non of its parts have been modified (*BOPAlgo_Builder::FillImagesContainer*);
3. Prevent creation of the new face if non of its wires have been modified (*BOPAlgo_Builder::FillImagesFaces*);
4. If possible, use the original face to be the representative for the group of SD faces (*BOPAlgo_Builder::FillSameDomainFaces*).

Cosmetic changes:
1. Documentation of the *BOPAlgo_Builder* class.
2. Making simple methods of the *BOPAlgo_Builder* class inline.
3. Getting rid of the *BOPAlgo_Builder::mySplits* field as it is excessive. *BOPAlgo_Builder::myImages* can be used instead.
3. Moving the Check Inverted option from *BOPAlgo_Options* to *BOPAlgo_Builder*.

Test cases for the issue.
Adjustment of the test case to their current behavior.
Test case *blend/complex/H2* has been deleted as duplicate of the test case *blend/simple/Z1*.
2017-11-30 12:11:20 +03:00
emv
98b3765966 0029237: Improve performance of Boolean Operations
In order to improve performance of Boolean Operations on the relatively fast cases the following improvements have been made:
1. Initialization of the FaceInfo information for the faces participating in Face/Face interference, even when the gluing is ON, to take into account intersection of their sub-shapes.
2. Code simplification & duplication removal - the methods BOPAlgo_ShellSplitter::MakeConnexityBlocks and BOPAlgo_WireSplitter::MakeConnexityBlocks have been unified into BOPTools_AlgoTools::MakeConnexityBlocks.
3. Avoid unnecessary bounding box computation for solids during DS initialization. The bounding boxes for solids will be computed during the building stage to find faces located inside solids.
   For the shape self-interference check (performed by the BOPAlgo_CheckerSI), the bounding box is still computed, as it is necessary to resolve Shape/Solid intersections.
4. Use only three sample points to check coincidence of line and plane.
5. Perform necessity of planes intersection only when the gluing is off.
6. Avoid repeated initialization of 2D classifier while building splits of the faces.
7. Post treat stage:
7.1. Method CorrectWires: Save edge's data (PCurve, parameter of the vertex, range) to avoid its recalculation.
7.2. Method CheckEdge: While checking vertices on edges avoid unnecessary calculation of their location.
8. Provide possibility to disable the classification of the input solids on the inverted status (to be the holes in the space).
9. Avoid building of bounding boxes for faces/solids during splitting of the input arguments for their classification relatively hole faces/shells if there are no holes created.
10. Avoid rebuilding of the faces/solids from arguments which does not acquire any inside parts from other arguments during the operation by using their draft versions as their splits.

Test cases for the issue.
Correction of the test cases boolean gdml_public A9 and bugs modalg_7 bug28485 as they are improvements.
Additional test case for the issue #28485 as it is fixed by the current changes.
2017-11-01 17:27:08 +03:00