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IDProjectCategoryView StatusDate SubmittedLast Update
0030292Open CASCADE[OCCT] OCCT:Modeling Algorithmspublic2018-10-25 01:182020-09-14 22:53
Assigned Toifv 
PlatformOSOS Version
Product Version[OCCT] 7.3.0 
Target Version[OCCT] 7.6.0*Fixed in Version 
Summary0030292: Modeling Algorithms - BRepBndLib should avoid using Poly_Polygon3D when called with useTriangulation set to false
DescriptionBRepBndLib::Add() has flag to either use triangulation when possible or to use geometric data.

It looks natural that useTriangulation flag affects using any tessellated data for computing bounding box, including Face triangulation as well as Edge polyline, but apparently the latter is not the case.

It is proposed to update implementation and description of the tool to ignore any tessellated data including polygon3d within Edge.
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git (administrator)
2018-10-25 10:19

Branch CR30292 has been created by kgv.

SHA-1: 5a75e65eb4493ebd520e98507981290da4bcfcc1

Detailed log of new commits:

Author: kgv
Date: Thu Oct 25 10:13:44 2018 +0300

    0030292: Modeling Algorithms - BRepBndLib should avoid using Poly_Polygon3D when called with useTriangulation set to false
msv (developer)
2018-10-25 11:22

It is needed to implement the same logic for edges without faces as for faces: polygon is used if there are no geometry or the flag useTriangulation is true. Geometry is used if the flag useTriangulation is false or there are no polygon.

It seems the proposed patch fixes this well for the method Add(). It is needed to do the same for the method AddOptimal().

Also, it is needed to update the description of the method Add() in the header file.
msv (developer)
2018-10-25 11:23

The non-regression test cases are also needed.

- Issue History
Date Modified Username Field Change
2018-10-25 01:18 kgv New Issue
2018-10-25 01:18 kgv Assigned To => msv
2018-10-25 10:19 git Note Added: 0080295
2018-10-25 11:22 msv Note Added: 0080296
2018-10-25 11:22 msv Assigned To msv => ifv
2018-10-25 11:22 msv Status new => assigned
2018-10-25 11:23 msv Note Added: 0080297
2019-08-12 18:01 msv Target Version 7.4.0 => 7.5.0
2020-09-14 22:53 msv Target Version 7.5.0 => 7.6.0*

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