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IDProjectCategoryView StatusDate SubmittedLast Update
0023640Community[OCCT] OCCT:Documentationpublic2012-12-13 18:452014-07-25 14:42
ReporterTimo 
Assigned Togka 
PrioritynormalSeverityfeature 
StatusnewResolutionopen 
PlatformOSOS Version
Product Version[OCCT] 6.5.4 
Target Version[OCCT] 6.8.0Fixed in Version 
Summary0023640: Documentation for local sewing with BRepBuilderAPI_Sewing is missing
DescriptionIn http://www.opencascade.org/org/forum/thread_24171/?forum=3 [^] it was asked how local sewing can be performed in OpenCascade.

The answer was:
First you should Load() a context shape
and after use Add() for sub-shapes which should be locally sewed.

The forum supervisor wrote:
Unfortunately this feature still is not documented.
Therefore I suggest you to register the corresponding issue in Mantis Bug Tracker.

It would be helpful if a use case for local sewing is explained and how it can be used to get better performance than with global sewing.

Documentation about local sewing should be added to the Modeling Algorithms User's Guide as well as to the Doxygen Code documentation.
TagsNo tags attached.
Test case number
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-  Notes
(0030424)
Timo (developer)
2014-07-25 14:42

I found some information about Local Sewing on http://www.opencascade.org/occt/overview/compocc7/sewing/sewing10/ [^]

It might be useful to for the proposed documentation enhancement:

"In case when a shape still has some unsewed faces or edges after sewing, it is possible to use local sewing with a greater tolerance.

Local sewing is especially good for open shells.
Local sewing allows to sew a hole in one part of the shape and to keep a required hole smaller than the specified working tolerance for local sewing. Local sewing is much faster than sewing on the whole shape.

All pre-existing connections of the whole shape are kept after local sewing."


There are also some other pieces of information about sewing on the website, but some of it is not up-to-date, like mentioning BRepAlgo_Sewing on http://www.opencascade.org/occt/overview/compocc7/sewing/sewing2/ [^]

- Issue History
Date Modified Username Field Change
2012-12-13 18:45 Timo New Issue
2012-12-13 18:45 Timo Assigned To => atp
2012-12-13 19:13 szy Target Version => 6.6.0
2012-12-14 15:57 atp Assigned To atp => gka
2013-02-26 15:50 abv Target Version 6.6.0 => 6.7.0
2013-12-16 16:20 gka File Added: Surface_0.brep
2013-12-16 16:20 gka File Added: Surface_1.brep
2013-12-16 16:29 gka File Deleted: Surface_0.brep
2013-12-16 16:29 gka File Deleted: Surface_1.brep
2013-12-21 10:13 abv Target Version 6.7.0 => 6.7.1
2014-04-04 18:27 abv Target Version 6.7.1 => 6.8.0
2014-07-25 14:42 Timo Note Added: 0030424


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