From: kgv <kgv@opencascade.com>
Date: Mon, 24 Jun 2019 12:03:49 +0000 (+0300)
Subject: 0030805: Visualization, StdSelect_BRepSelectionTool - empty sensitivity from polygon... 
X-Git-Tag: V7_4_0_beta~100
X-Git-Url: http://git.dev.opencascade.org/gitweb/?a=commitdiff_plain;h=e05d8d90c0ac0db2f70f15cb5258cca27bc31f11;p=occt-copy.git

0030805: Visualization, StdSelect_BRepSelectionTool - empty sensitivity from polygon-only Edge

StdSelect_BRepSelectionTool::GetEdgeSensitive() now takes polygon points before creating curve Adaptor.
---

diff --git a/src/StdSelect/StdSelect_BRepSelectionTool.cxx b/src/StdSelect/StdSelect_BRepSelectionTool.cxx
index ff96652a36..36f2db83e8 100644
--- a/src/StdSelect/StdSelect_BRepSelectionTool.cxx
+++ b/src/StdSelect/StdSelect_BRepSelectionTool.cxx
@@ -443,6 +443,15 @@ void StdSelect_BRepSelectionTool::GetEdgeSensitive (const TopoDS_Shape& theShape
                                                     Handle(Select3D_SensitiveEntity)& theSensitive)
 {
   const TopoDS_Edge& anEdge = TopoDS::Edge (theShape);
+  // try to get points from existing polygons
+  Handle(TColgp_HArray1OfPnt) aPoints = GetPointsFromPolygon (anEdge);
+  if (!aPoints.IsNull()
+   && !aPoints->IsEmpty())
+  {
+    theSensitive = new Select3D_SensitiveCurve (theOwner, aPoints);
+    return;
+  }
+
   BRepAdaptor_Curve cu3d;
   try {
     OCC_CATCH_SIGNALS
@@ -451,14 +460,6 @@ void StdSelect_BRepSelectionTool::GetEdgeSensitive (const TopoDS_Shape& theShape
     return;
   }
 
-  // try to get points from existing polygons
-  Handle(TColgp_HArray1OfPnt) aPoints = GetPointsFromPolygon (anEdge);
-  if (!aPoints.IsNull() && aPoints->Length() > 0)
-  {
-    theSensitive = new Select3D_SensitiveCurve (theOwner, aPoints);
-    return;
-  }
-
   Standard_Real aParamFirst = cu3d.FirstParameter();
   Standard_Real aParamLast  = cu3d.LastParameter();
   switch (cu3d.GetType())