Section algorithm produces micro edge

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Author: Author
Date: Wed Apr 26 11:09:51 2017 +0300

    0028690: Section algorithm produces micro edge
    
    In BOPAlgo_PaveFiller algorithm, prevent creation of vertex-edge interference if this vertex already has interference with one of vertices of this edge. This way we avoid creation of micro edges that are unwanted in the result shape.

Please review.

Reviewed.

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The fix is not ready yet.

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I have created the new version of the fix and 3 test cases:
bugs/modalg_6/bug28690,bug28690_1,bug28690_2.
The 2nd test does not work with this fix. It needs further improvement in PerformVE so that to check vertices coincidence after updating their tolerances.

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Another case when non-resolved interference between vertices leads to invalid result of Boolean operation:

restore Attachment 1 (BREP) c
explode c
bclearobjects
bcleartools
baddobjects c_1 c_2
bfillds
bbuild result
checkshape result

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The Branch [archived branch] has been rebased on current master. New test case with the Attachment 1 (BREP) input shape has been added.

The issue is fixed by the fix for the issue #0028775. The test cases for this issue are added into the patch for #0028775.

Dear Commenter 1,
The issue is TESTED in the branch CR28775_2.

Modification of code has been integrated with fix for issue CR28775

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