0006474: Incorrect result of intersection of a plane and an extrusion surface

ID	Project	Category	View Status	Date Submitted	Last Update

0006474	Open CASCADE	OCCT:Modeling Algorithms	public	2004-08-20 14:06	2012-01-16 19:17

Reporter	~~msv~~	Assigned To	~~msv~~
Priority	normal	Severity	trivial
Status	closed	Resolution	fixed
OS	All
Fixed in Version	5.2.1

Summary	0006474: Incorrect result of intersection of a plane and an extrusion surface
Description	The direction of extrusion lies in the plane. The result is expected as 1 direct line. But we have got 4 overlapping bspline curves lying on that line. The script to reproduce is following: restore s1 restore s2 intersect i s1 s2 if {[llength [directory i*]] != 1} { error "more than 1 intersection line is got" } puts "TEST COMPLETED" The surfaces are attached in the data.tgz file. The possible solution is to treat such a case as a particular one and give as a result the line whose direction is a direction of extrusion and origin is got by intersection of the basis curve of extrusion surface and the plane.
Additional information and documentation updates	Documentation remark, added by MSV 2004-10-01 12:42:27: Improvements: Intersection of a surface of linear extrusion with a plane parallel to the direction of extrusion now stably produces a direct line instead of a set of overlapped bspline curves. Modified entities: only .cxx and .gxx files.
Tags	No tags attached.

Test case number

Date Modified	Username	Field	Change
2004-08-20 14:08	~~msv~~	BugsThisDependsOn	=> 6143
2004-09-13 08:31	bugmaster	Assigned To	bugmaster => msv
2004-09-13 08:31	bugmaster	Status	new => assigned
2004-09-13 08:31	bugmaster	Status	assigned => tested
2004-09-13 08:32	bugmaster	Status	tested => verified
2004-11-01 12:09	bugmaster	Status	verified => closed
2004-11-01 12:09	bugmaster	Resolution	@0@ => fixed
2011-08-02 11:31	bugmaster	Category	OCCT:MOA => OCCT:Modeling Algorithms
2012-01-16 19:17	~~atp~~	Description Updated
2012-01-16 19:17	~~atp~~	Additional Information Updated