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0031425: Visualization - free Edge has selection sensitivity inconsistent to presentation

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BRepTools::Triangulation() has been extended with a new parameter for checking Poly_Polygon3D presense within free Edges.
StdPrs_WFShape::Add() now performs auto-triangulation in the same way as StdPrs_ShadedShape::Add().
StdSelect_BRepSelectionTool::GetEdgeSensitive() now creates Select3D_SensitiveSegment instead of Select3D_SensitiveCurve for tessellated segment.
Select3D_SensitiveSegment default sensitivity factor has been changed to 3 pixels to match Select3D_SensitiveCurve.

Test case bug23625_1, added workaround for out-of-range crash in HLRBRep_PolyAlgo on re-triangulated shape.
This commit is contained in:
kgv
2020-03-11 17:06:49 +03:00
committed by bugmaster
parent 08669adf1b
commit 29263c947e
14 changed files with 122 additions and 46 deletions
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14
src/StdSelect/StdSelect_BRepSelectionTool.cxx
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@@ -113,8 +113,8 @@ void StdSelect_BRepSelectionTool::Load (const Handle(SelectMgr_Selection)& theSe
const Standard_Real theMaxParam)
{
Standard_Integer aPriority = (thePriority == -1) ? GetStandardPriority (theShape, theType) : thePriority;
if( isAutoTriangulation && !BRepTools::Triangulation (theShape, Precision::Infinite()) )
if (isAutoTriangulation
&& !BRepTools::Triangulation (theShape, Precision::Infinite(), true))
{
BRepMesh_IncrementalMesh aMesher(theShape, theDeflection, Standard_False, theDeviationAngle);
}
@@ -448,7 +448,15 @@ void StdSelect_BRepSelectionTool::GetEdgeSensitive (const TopoDS_Shape& theShape
if (!aPoints.IsNull()
&& !aPoints->IsEmpty())
{
theSensitive = new Select3D_SensitiveCurve (theOwner, aPoints);
if (aPoints->Length() == 2)
{
// don't waste memory, create a segment
theSensitive = new Select3D_SensitiveSegment (theOwner, aPoints->First(), aPoints->Last());
}
else
{
theSensitive = new Select3D_SensitiveCurve (theOwner, aPoints);
}
return;
}