| Bug? Scaling sphere at one direction. |
 |
| Kazumasa Uno | 2009/07/01 11:23 | Hello everybody.
The following simple program does not work properly.
I think it is bug.
void OnDebug_test6(Handle_AIS_InteractiveContext myAISContext)
{
// Create Sphere
gp_Pnt aCenter(0,0,0);
TopoDS_Shape tShape = BRepPrimAPI_MakeSphere( aCenter, 50.0 );
// Scale down at Z axis only
{
gp_GTrsf aTrsf;
gp_Mat rot( 1.0, 0, 0, 0, 1.0, 0, 0, 0, 0.5 ); // Only Z scale down 50%
aTrsf.SetVectorialPart(rot);
BRepBuilderAPI_GTransform aBrepTrsf(tShape,aTrsf);
tShape = aBrepTrsf.Shape();
}
// Display
Handle(AIS_Shape) aShape = new AIS_Shape(tShape);
myAISContext->SetDisplayMode(aShape,1);
myAISContext->Display(aShape, Standard_False);
}
Almost everything goes disappear and only wireframe is hilighted when mouse moves to the sphere.
http://www.fisco21.com/img/OCC/20090701.jpg
Some of my trials.
1. I try converting sphere into nurbs by BRepBuilderAPI_NurbsConvert, but the result was same.
2. I build the shape by BRepPrimAPI_MakeRevol with 360 degree,
arbitrary cross-sectional contour such as half of circle, half of ellipse, spline curve,
the result was also same.
but the donuts like shape was correctly scaled.
3. I try shape healing function ShapeFix_Shape, but the result was same.
Any suggestion and opinion would be appreciated.
| |
|
| |
| Fotis Sioutis | 2009/07/01 12:12 | This is a known BUG in OCC.There is a patch available for this issue in Salome 4.1.4 distribution, which modifies BRepMesh_FastDiscret.hxx, IntPatch_Intersection.hxx and IntPatch_PrmPrmIntersection.gxx.Recompilation of OCC with the new files has solved this problem in my case.
Fotis | |
|
| |
| Kazumasa Uno | 2009/07/02 02:51 | Hello Fotis.
Thank you very much for your reply and useful information.
I found the patch 'CAS-6.3-patch.tar.gz' in Salome Debian version.
I confirm that The bug is fixed.
Thank you once again!
| |
|
| | |
