0023314: Helix curve distortion

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0023314

Community

[OCCT] OCCT:Modeling Algorithms

public

2012-07-18 06:01

2020-09-14 22:56

Reporter

dingzh

Assigned To

jgv

Priority

normal

Severity

minor

Status

new

Resolution

open

Platform

OS Version

Product Version

[OCCT] 6.5.3

Target Version

[OCCT] 7.6.0*

Fixed in Version

Summary

0023314: Helix curve distortion

Description

Load attached brep file. Try to build a helix along a period surface using API
Handle(Geom2d_TrimmedCurve) aSegment = GCE2d_MakeSegment(startPnt , endPnt);
edge = BRepBuilderAPI_MakeEdge(aSegment , hSurf);
BRepLib::BuildCurves3d(edge);

The startPnt is (0.0,0.0), endPnt is (PI2*22, 51.024) (means 22 rounds), the hSurf is the b-spline surface in the file.
When round is 22, the helix curve is distortion, if we decrease the round to 10, the curve is correct.

Thanks.

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Attached Files

helix.rar (61,697 bytes) 2012-07-18 06:01

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Issue History
Date Modified	Username	Field	Change
2012-07-18 06:01	dingzh	New Issue
2012-07-18 06:01	dingzh	Assigned To	=> jgv
2012-07-18 06:01	dingzh	File Added: helix.rar
2014-08-11 20:33	abv	Target Version	=> 6.8.0
2014-09-26 14:25	abv	Target Version	6.8.0 => 7.1.0
2016-10-28 15:33	msv	Target Version	7.1.0 => 7.2.0
2017-07-21 11:34	msv	Target Version	7.2.0 => 7.3.0
2017-12-05 17:01	msv	Target Version	7.3.0 => 7.4.0
2019-08-12 16:37	msv	Target Version	7.4.0 => 7.5.0
2020-09-14 22:56	msv	Target Version	7.5.0 => 7.6.0*