0028125: Modeling Algorithms - support of BRep shapes based on tessellated geometry - MantisBT

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ID

Project

Category

View Status

Date Submitted

Last Update

0028125

Open CASCADE

[OCCT] OCCT:Modeling Algorithms

public

2016-11-17 17:21

2018-05-15 18:05

Reporter

abv

Assigned To

msv

Priority

normal

Severity

minor

Status

new

Resolution

open

Platform

OS

OS Version

Product Version

Target Version

[OCCT] 7.4.0*

Fixed in Version

Summary

0028125: Modeling Algorithms - support of BRep shapes based on tessellated geometry

Description

OCCT TopoDS model allows defining BRep shapes with edges and faces based on triangulated representation, without geometric curves and surfaces. This representation can be quite useful in some applications, especially when working with large models without a need to modify them. However, most of OCCT algorithms cannot handle such data.

It can be reasonable to improve some OCCT algorithms to be able to deal with tessellated shapes. The first candidates are:

- calculation of bounding boxes -- should be already available (BRepBndLib)
- calculation of volume and surface properties (BRepGProp)
- calculation of distances between objects (BRepExtrema)
- calculation of HLR (HLRBRep_PolyAlgo)?

This is meta-issue to provide this kind of functionality in OCCT. Issues for improvements of particular algorithms shall be created as children of this one.

Tags

No tags attached.

Test case number

Relationships

related to	0027992	closed	apn	Open CASCADE	Modeling Algorithms - Extrema_ExtPS crashes on face without geometric surface
related to	0027991	closed	apv	Open CASCADE	Modeling Algorithms - BRepGProp_Face crashes on face without geometric surface
related to	0029524	verified	bugmaster	Open CASCADE	Modeling Algorithms - access violation in HLRBRep_PolyAlgo while computing HLR for triangulation-only surface
related to	0025388	closed	bugmaster	Open CASCADE	Improve STL reader to generate one triangulation instead of compound of faces
related to	0029734	assigned	ifv	Open CASCADE	Modeling Algorithms - Compute global properties of tessellated shape
related to	0029776	new	msv	Community	Modeling Algorithms - Boolean Operation support of BRep shapes based on tessellated geometry
Not all the children of this issue are yet resolved or closed.

Notes
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Issue History
Date Modified	Username	Field	Change
2016-11-17 17:21	abv	New Issue
2016-11-17 17:21	abv	Assigned To	=> msv
2016-11-17 17:21	abv	Relationship added	related to 0027992
2016-11-17 17:22	abv	Relationship added	related to 0027991
2017-04-26 11:55	abv	Relationship added	related to 0025388
2017-07-24 09:22	msv	Target Version	7.2.0 => 7.3.0
2017-12-05 17:01	msv	Target Version	7.3.0 => 7.4.0*
2018-04-24 11:53	kgv	Relationship added	related to 0029524
2018-04-24 11:54	kgv	Description Updated	View Revisions
2018-04-24 12:01	kgv	Summary	Modeling - support of BRep shapes based on tessellated geometry => Modeling Algorithms - support of BRep shapes based on tessellated geometry
2018-04-27 14:26	asl	Relationship added	parent of 0029731
2018-05-04 11:54	msv	Relationship added	related to 0029734
2018-05-15 18:02	eryar	Relationship added	parent of 0029776
2018-05-15 18:03	eryar	Relationship deleted	parent of 0029776
2018-05-15 18:03	eryar	Relationship added	related to 0029776
2018-05-15 18:04	eryar	Relationship deleted	related to 0029776
2018-05-15 18:04	eryar	Relationship added	parent of 0029776
2018-05-15 18:05	eryar	Relationship deleted	parent of 0029776
2018-05-15 18:05	eryar	Relationship added	related to 0029776

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