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Improve GEOM_AISShape::computeMassCenter() on edges and faces

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which is used to show field values
This commit is contained in:
eap 2016-10-03 20:30:07 +03:00
parent e8236fd00f
commit accebb2c2b
1 changed files with 60 additions and 49 deletions
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91
src/OBJECT/GEOM_AISShape.cxx
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@ -34,55 +34,50 @@
// Open CASCADE Includes
#include <AIS_InteractiveContext.hxx>
#include <BRepAdaptor_Surface.hxx>
#include <BRep_Tool.hxx>
#include <GCPnts_AbscissaPoint.hxx>
#include <GeomAdaptor_Curve.hxx>
#include <gp_Pnt.hxx>
#include <gp_Dir.hxx>
#include <gp_Vec.hxx>
#include <Graphic3d_ArrayOfPoints.hxx>
#include <Graphic3d_AspectFillArea3d.hxx>
#include <Graphic3d_AspectLine3d.hxx>
#include <Graphic3d_AspectMarker3d.hxx>
#include <Graphic3d_AspectText3d.hxx>
#include <Graphic3d_ArrayOfPoints.hxx>
#include <Prs3d_ShadingAspect.hxx>
#include <Prs3d_Arrow.hxx>
#include <Prs3d_IsoAspect.hxx>
#include <Prs3d_ShadingAspect.hxx>
#include <SelectBasics_SensitiveEntity.hxx>
#include <SelectMgr_EntityOwner.hxx>
#include <SelectMgr_IndexedMapOfOwner.hxx>
#include <SelectMgr_Selection.hxx>
#include <StdPrs_ShadedShape.hxx>
#include <StdSelect_BRepOwner.hxx>
#include <StdSelect_DisplayMode.hxx>
#include <TColStd_IndexedMapOfInteger.hxx>
#include <TColStd_ListIteratorOfListOfInteger.hxx>
#include <TColStd_ListOfInteger.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_IndexedMapOfShape.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Vertex.hxx>
#include <V3d_View.hxx>
#include <gp_Dir.hxx>
#include <gp_Pnt.hxx>
#include <gp_Vec.hxx>
#if OCC_VERSION_LARGE > 0x06070200
#include <Prs3d_VertexDrawMode.hxx>
#endif
#include <SelectBasics_SensitiveEntity.hxx>
#include <SelectMgr_EntityOwner.hxx>
#include <StdSelect_BRepOwner.hxx>
#include <SelectMgr_IndexedMapOfOwner.hxx>
#include <SelectMgr_Selection.hxx>
#include <StdSelect_DisplayMode.hxx>
#include <StdPrs_ShadedShape.hxx>
#if OCC_VERSION_MAJOR < 7
#include <StdPrs_WFDeflectionShape.hxx>
#else
#include <StdPrs_WFShape.hxx>
#endif
#include <TColStd_IndexedMapOfInteger.hxx>
#include <TColStd_ListIteratorOfListOfInteger.hxx>
#include <TColStd_ListOfInteger.hxx>
#include <TopExp.hxx>
#include <TopoDS_Shape.hxx>
#include <TopTools_IndexedMapOfShape.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Vertex.hxx>
#include <TColStd_SequenceOfInteger.hxx>
#include <V3d_View.hxx>
#include <SalomeApp_Tools.h>
#include <SUIT_Session.h>
#include <SUIT_ResourceMgr.h>
@ -659,9 +654,29 @@ void GEOM_AISShape::drawName( const Handle(Prs3d_Presentation)& thePrs )
Standard_Boolean GEOM_AISShape::computeMassCenter( const TopoDS_Shape& theShape,
gp_Pnt& theCenter )
{
Standard_Real aX = 0, aY = 0, aZ = 0;
theCenter.SetCoord( 0,0,0 );
Standard_Integer aNbPoints = 0;
if ( theShape.ShapeType() == TopAbs_EDGE )
{
double f,l;
Handle(Geom_Curve) curve = BRep_Tool::Curve( TopoDS::Edge( theShape ), f, l );
if ( !curve.IsNull() )
{
theCenter = curve->Value( 0.5 * ( f + l ));
aNbPoints = 1;
}
}
else if ( theShape.ShapeType() == TopAbs_FACE )
{
BRepAdaptor_Surface surface( TopoDS::Face( theShape ));
theCenter = surface.Value( 0.5 * ( surface.FirstUParameter() + surface.LastUParameter() ),
0.5 * ( surface.FirstVParameter() + surface.LastVParameter() ));
aNbPoints = 1;
}
if ( aNbPoints == 0 )
{
TopExp_Explorer anExp;
for( anExp.Init( theShape, TopAbs_VERTEX ); anExp.More(); anExp.Next() )
{
@ -669,18 +684,14 @@ Standard_Boolean GEOM_AISShape::computeMassCenter( const TopoDS_Shape& theShape,
if( !aVertex.IsNull() )
{
gp_Pnt aPnt = BRep_Tool::Pnt( aVertex );
aX += aPnt.X();
aY += aPnt.Y();
aZ += aPnt.Z();
theCenter.ChangeCoord() += aPnt.XYZ();
aNbPoints++;
}
}
}
if( aNbPoints == 0 )
return Standard_False;
if ( aNbPoints > 0 )
theCenter.ChangeCoord() /= (Standard_Real) aNbPoints;
theCenter.SetCoord( aX / (Standard_Real)aNbPoints,
aY / (Standard_Real)aNbPoints,
aZ / (Standard_Real)aNbPoints );
return Standard_True;
return aNbPoints;
}