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IDProjectCategoryView StatusDate SubmittedLast Update
0027884Open CASCADE[OCCT] OCCT:Modeling Algorithmspublic2016-09-20 15:472017-12-05 17:08
Assigned Toisn 
PlatformOSOS Version
Product Version 
Target Version[OCCT] 7.4.0*Fixed in Version 
Summary0027884: Possible improvement for 2d classifier
DescriptionSome internal 2d classification tools (like TopClass_Classifier2d) checks the intersection between the 2d edge representation on the face and 2d line (passed through the test point).
It's possible to speed up the classification process by using of additional information about (2d) bounding boxes of this edges (i.e. their pcurves). This allows to skip many calls of 2d intersectors & extremas.
User can pass the bnd boxes information externally (via datamap edge (on face) -> its bndbox2d). Or it can be calculated internally.
currently, bndbox <-> line intersection implemented only for 3D. For this improvement it also should be implemented for 2D.

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msv (developer)
2016-09-22 09:41
edited on: 2016-09-22 09:41

Before making this imp, it is needed to create a test case[s] that will allow comparing results (for performance) with and without fix.

- Issue History
Date Modified Username Field Change
2016-09-20 15:47 isn New Issue
2016-09-20 15:47 isn Assigned To => isn
2016-09-20 15:47 isn Description Updated View Revisions
2016-09-20 15:48 isn Description Updated View Revisions
2016-09-22 09:41 msv Note Added: 0058007
2016-09-22 09:41 msv Priority normal => low
2016-09-22 09:41 msv Status new => assigned
2016-09-22 09:41 msv Note Edited: 0058007 View Revisions
2016-10-28 16:28 msv Target Version 7.1.0 => 7.2.0
2017-07-24 09:32 msv Target Version 7.2.0 => 7.3.0
2017-12-05 17:08 msv Target Version 7.3.0 => 7.4.0*

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