0027884: Possible improvement for 2d classifier

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0027884

Open CASCADE

[OCCT] OCCT:Modeling Algorithms

public

2016-09-20 15:47

2020-09-14 22:54

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isn

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isn

Priority

low

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feature

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assigned

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open

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[OCCT] 7.6.0*

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Summary

0027884: Possible improvement for 2d classifier

Description

Some 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.
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User can pass the bnd boxes information externally (via datamap edge (on face) -> its bndbox2d). Or it can be calculated internally.
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currently, bndbox <-> line intersection implemented only for 3D. For this improvement it also should be implemented for 2D.

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(0058007) 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
2019-08-12 16:45	msv	Target Version	7.4.0 => 7.5.0
2020-09-14 22:54	msv	Target Version	7.5.0 => 7.6.0*