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occt/src/AIS/AIS_SymmetricRelation.cxx
abv a1eb3afd0d 0024023: Revamp the OCCT Handle -- downcast (manual) 
Manual corrections of C-style casts of Handle types
2015-07-11 12:08:06 +03:00

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// Created on: 1997-03-03
// Created by: Jean-Pierre COMBE
// Copyright (c) 1997-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#include <Standard_NotImplemented.hxx>
#include <AIS_SymmetricRelation.ixx>
#include <AIS.hxx>
#include <gce_MakeLin.hxx>
#include <SelectMgr_EntityOwner.hxx>
#include <SelectMgr_Selection.hxx>
#include <Select3D_SensitiveSegment.hxx>
#include <Select3D_SensitiveBox.hxx>
#include <Precision.hxx>
#include <TopoDS.hxx>
#include <BRep_Tool.hxx>
#include <BRepAdaptor_Surface.hxx>
#include <BRepAdaptor_Curve.hxx>
#include <gp_Lin.hxx>
#include <gp_Circ.hxx>
#include <gp_Pnt.hxx>
#include <ElCLib.hxx>
#include <gp_Pln.hxx>
#include <gp_Dir.hxx>
#include <gp_Ax1.hxx>
#include <gp_Ax2.hxx>
#include <Geom_Plane.hxx>
#include <Geom_Line.hxx>
#include <Geom_Circle.hxx>
#include <TopExp_Explorer.hxx>
#include <Precision.hxx>
#include <Prs3d_Drawer.hxx>
#include <Prs3d_ArrowAspect.hxx>
#include <Prs3d_DimensionAspect.hxx>
#include <DsgPrs_SymmetricPresentation.hxx>
//=======================================================================
//function : AIS_SymmetricRelation
//purpose :
//=======================================================================
AIS_SymmetricRelation::AIS_SymmetricRelation(const TopoDS_Shape& aSymmTool,
const TopoDS_Shape& FirstShape,
const TopoDS_Shape& SecondShape,
const Handle(Geom_Plane)& aPlane)
:AIS_Relation(),
myTool(aSymmTool)
{
SetFirstShape(FirstShape);
SetSecondShape(SecondShape);
SetPlane(aPlane);
myPosition = aPlane->Pln().Location();
}
//=======================================================================
//function : Compute
//purpose :
//=======================================================================
void AIS_SymmetricRelation::Compute(const Handle(PrsMgr_PresentationManager3d)&,
const Handle(Prs3d_Presentation)& aprs,
const Standard_Integer)
{
aprs->Clear();
switch (myFShape.ShapeType()) {
case TopAbs_FACE :
{
// cas symetrie entre deux faces
ComputeTwoFacesSymmetric(aprs);
}
break;
case TopAbs_EDGE :
{
// cas symetrie entre deux edges
ComputeTwoEdgesSymmetric(aprs);
}
break;
case TopAbs_VERTEX :
{
// cas symetrie entre deux vertexs
ComputeTwoVerticesSymmetric(aprs);
}
break;
default:
break;
}
if (myTool.ShapeType() == TopAbs_EDGE) {
Handle(Geom_Curve) aCurve,extcurve;
gp_Pnt p1,p2;
Standard_Boolean isinfinite,isonplane;
if (AIS::ComputeGeometry(TopoDS::Edge(myTool),
aCurve,p1,p2,
extcurve,
isinfinite,
isonplane,
myPlane)) {
if (!extcurve.IsNull()) {
gp_Pnt pf, pl;
if (!isinfinite) {
pf = p1;
pl = p2;
}
if (isinfinite) aprs->SetInfiniteState(Standard_True);
ComputeProjEdgePresentation(aprs,TopoDS::Edge(myTool),aCurve,pf,pl);
}
}
}
}
//=======================================================================
//function : Compute
//purpose : to avoid warning at compilation (SUN)
//=======================================================================
void AIS_SymmetricRelation::Compute(const Handle(Prs3d_Projector)& /*aProjector*/,
const Handle(Prs3d_Presentation)& /*aPresentation*/)
{
// Standard_NotImplemented::Raise("AIS_SymmetricRelation::Compute(const Handle(Prs3d_Projector)&,const Handle(Prs3d_Presentation)&)");
// PrsMgr_PresentableObject::Compute( aProjector , aPresentation ) ;
}
void AIS_SymmetricRelation::Compute(const Handle(Prs3d_Projector)& aProjector,
const Handle(Geom_Transformation)& aTransformation,
const Handle(Prs3d_Presentation)& aPresentation)
{
Standard_NotImplemented::Raise("AIS_SymmetricRelation::Compute(const Handle(Prs3d_Projector)&, const Handle(Geom_Transformation)&, const Handle(Prs3d_Presentation)&)");
PrsMgr_PresentableObject::Compute( aProjector , aTransformation , aPresentation ) ;
}
//=======================================================================
//function : ComputeSelection
//purpose :
//=======================================================================
void AIS_SymmetricRelation::ComputeSelection(const Handle(SelectMgr_Selection)& aSel,
const Standard_Integer)
{
Handle(Select3D_SensitiveSegment) seg;
Handle(SelectMgr_EntityOwner) own = new SelectMgr_EntityOwner(this,7);
Standard_Real F,L;
Handle(Geom_Line) geom_axis,extcurve;
gp_Pnt p1,p2;
Standard_Boolean isinfinite,isonplane;
if (!AIS::ComputeGeometry(TopoDS::Edge(myTool),
geom_axis,p1,p2,
extcurve,
isinfinite,
isonplane,
myPlane)) return;
gp_Lin laxis (geom_axis->Lin());
if(myFShape.ShapeType() != TopAbs_VERTEX){
BRepAdaptor_Curve cu1(TopoDS::Edge(myFShape));
if(cu1.GetType() == GeomAbs_Line) {
// gp_Lin L1 (myFAttach,myFDirAttach);
gp_Pnt PjAttachPnt1 = ElCLib::Value(ElCLib::Parameter(laxis,myFAttach),laxis);
gp_Pnt PjOffSetPnt = ElCLib::Value(ElCLib::Parameter(laxis,myPosition),laxis);
Standard_Real h = fabs(PjOffSetPnt.Distance(PjAttachPnt1)/cos(myAxisDirAttach.Angle(myFDirAttach)));
gp_Vec VL1(myFDirAttach);
gp_Vec VLa(PjAttachPnt1,PjOffSetPnt);
Standard_Real scal = VL1.Dot(VLa);
if(scal < 0) VL1.Reverse();
VL1.Multiply(h);
gp_Pnt P1 = myFAttach.Translated(VL1);
gp_Pnt ProjAxis = ElCLib::Value(ElCLib::Parameter(laxis,P1),laxis);
gp_Vec v(P1,ProjAxis);
gp_Pnt P2 = ProjAxis.Translated(v);
gp_Lin L3;
if (!P1.IsEqual(P2,Precision::Confusion())) {
L3 = gce_MakeLin(P1,P2);
}
else {
L3 = gce_MakeLin(P1,myFDirAttach);
Standard_Real size(Min(myVal/100.+1.e-6,myArrowSize+1.e-6));
Handle(Select3D_SensitiveBox) box =
new Select3D_SensitiveBox(own,
myPosition.X(),
myPosition.Y(),
myPosition.Z(),
myPosition.X()+size,
myPosition.Y()+size,
myPosition.Z()+size);
aSel->Add(box);
}
Standard_Real parmin,parmax,parcur;
parmin = ElCLib::Parameter(L3,P1);
parmax = parmin;
parcur = ElCLib::Parameter(L3,P2);
parmin = Min(parmin,parcur);
parmax = Max(parmax,parcur);
parcur = ElCLib::Parameter(L3,myPosition);
parmin = Min(parmin,parcur);
parmax = Max(parmax,parcur);
gp_Pnt PointMin = ElCLib::Value(parmin,L3);
gp_Pnt PointMax = ElCLib::Value(parmax,L3);
if (!PointMin.IsEqual(PointMax,Precision::Confusion())) {
seg = new Select3D_SensitiveSegment(own,
PointMin,
PointMax);
aSel->Add(seg);
}
if (!myFAttach.IsEqual(P1,Precision::Confusion())) {
seg = new Select3D_SensitiveSegment(own,
myFAttach,
P1);
aSel->Add(seg);
}
if (!mySAttach.IsEqual(P2,Precision::Confusion())) {
seg = new Select3D_SensitiveSegment(own,
mySAttach,
P2);
aSel->Add(seg);
}
}
//=======================Pour les arcs======================
if(cu1.GetType() == GeomAbs_Circle) {
Handle(Geom_Curve) aGeomCurve = BRep_Tool::Curve(TopoDS::Edge(myFShape),F,L);
Handle(Geom_Circle) geom_circ1 = Handle(Geom_Circle)::DownCast (aGeomCurve) ;
// Handle(Geom_Circle) geom_circ1 = (const Handle(Geom_Circle)&) BRep_Tool::Curve(TopoDS::Edge(myFShape),F,L);
gp_Circ circ1(geom_circ1->Circ());
gp_Pnt OffsetPnt(myPosition.X(),myPosition.Y(),myPosition.Z());
gp_Pnt Center1 = circ1.Location();
gp_Pnt ProjOffsetPoint = ElCLib::Value(ElCLib::Parameter(laxis,OffsetPnt),laxis);
gp_Pnt ProjCenter1 = ElCLib::Value(ElCLib::Parameter(laxis,Center1),laxis);
gp_Vec Vp(ProjCenter1,Center1);
if (Vp.Magnitude() <= Precision::Confusion()) Vp = gp_Vec(laxis.Direction())^myPlane->Pln().Position().Direction();
Standard_Real Dt,R,h;
Dt = ProjCenter1.Distance(ProjOffsetPoint);
R = circ1.Radius();
if (Dt > .999*R) {
Dt = .999*R;
gp_Vec Vout(ProjCenter1,ProjOffsetPoint);
ProjOffsetPoint = ProjCenter1.Translated(Vout.Divided(Vout.Magnitude()).Multiplied(Dt));
OffsetPnt = ProjOffsetPoint;
}
h = Sqrt(R*R - Dt*Dt);
gp_Pnt P1 = ProjOffsetPoint.Translated(Vp.Added(Vp.Divided(Vp.Magnitude()).Multiplied(h)));
gp_Vec v(P1,ProjOffsetPoint);
gp_Pnt P2 = ProjOffsetPoint.Translated(v);
gp_Lin L3;
if (!P1.IsEqual(P2,Precision::Confusion())) {
L3 = gce_MakeLin(P1,P2);
}
else {
L3 = gce_MakeLin(P1,laxis.Direction());
Standard_Real size(Min(myVal/100.+1.e-6,myArrowSize+1.e-6));
Handle(Select3D_SensitiveBox) box =
new Select3D_SensitiveBox(own,
myPosition.X(),
myPosition.Y(),
myPosition.Z(),
myPosition.X()+size,
myPosition.Y()+size,
myPosition.Z()+size);
aSel->Add(box);
}
Standard_Real parmin,parmax,parcur;
parmin = ElCLib::Parameter(L3,P1);
parmax = parmin;
parcur = ElCLib::Parameter(L3,P2);
parmin = Min(parmin,parcur);
parmax = Max(parmax,parcur);
parcur = ElCLib::Parameter(L3,myPosition);
parmin = Min(parmin,parcur);
parmax = Max(parmax,parcur);
gp_Pnt PointMin = ElCLib::Value(parmin,L3);
gp_Pnt PointMax = ElCLib::Value(parmax,L3);
if (!PointMin.IsEqual(PointMax,Precision::Confusion())) {
seg = new Select3D_SensitiveSegment(own,
PointMin,
PointMax);
aSel->Add(seg);
}
}
}
//=======================Pour les points======================
else {
if (myFAttach.IsEqual(mySAttach,Precision::Confusion())) {
seg = new Select3D_SensitiveSegment(own,myPosition,myFAttach);
aSel->Add(seg);
}
else{
gp_Pnt ProjOffsetPoint = ElCLib::Value(ElCLib::Parameter(laxis,myPosition),laxis);
gp_Pnt ProjAttachmentPoint1 = ElCLib::Value(ElCLib::Parameter(laxis,myFAttach),laxis);
gp_Vec PjAtt1_Att1(ProjAttachmentPoint1,myFAttach);
gp_Pnt P1 = ProjOffsetPoint.Translated(PjAtt1_Att1);
gp_Pnt P2 = ProjOffsetPoint.Translated(PjAtt1_Att1.Reversed());
gp_Lin L3;
if (!P1.IsEqual(P2,Precision::Confusion())) {
L3 = gce_MakeLin(P1,P2);
}
else {
L3 = gce_MakeLin(P1,myFDirAttach);
Standard_Real size(Min(myVal/100.+1.e-6,myArrowSize+1.e-6));
Handle(Select3D_SensitiveBox) box =
new Select3D_SensitiveBox(own,
myPosition.X(),
myPosition.Y(),
myPosition.Z(),
myPosition.X()+size,
myPosition.Y()+size,
myPosition.Z()+size);
aSel->Add(box);
}
Standard_Real parmin,parmax,parcur;
parmin = ElCLib::Parameter(L3,P1);
parmax = parmin;
parcur = ElCLib::Parameter(L3,P2);
parmin = Min(parmin,parcur);
parmax = Max(parmax,parcur);
parcur = ElCLib::Parameter(L3,myPosition);
parmin = Min(parmin,parcur);
parmax = Max(parmax,parcur);
gp_Pnt PointMin = ElCLib::Value(parmin,L3);
gp_Pnt PointMax = ElCLib::Value(parmax,L3);
if (!PointMin.IsEqual(PointMax,Precision::Confusion())) {
seg = new Select3D_SensitiveSegment(own,PointMin,PointMax);
aSel->Add(seg);
}
if (!myFAttach.IsEqual(P1,Precision::Confusion())) {
seg = new Select3D_SensitiveSegment(own,myFAttach,P1);
aSel->Add(seg);
}
if (!mySAttach.IsEqual(P2,Precision::Confusion())) {
seg = new Select3D_SensitiveSegment(own,mySAttach,P2);
aSel->Add(seg);
}
}
}
}
//=======================================================================
//function : ComputeTwoFacesSymmetric
//purpose :
//=======================================================================
void AIS_SymmetricRelation::ComputeTwoFacesSymmetric(const Handle(Prs3d_Presentation)&)
{
}
//=======================================================================
//function : ComputeTwoEdgesSymmetric
//purpose :
//=======================================================================
void AIS_SymmetricRelation::ComputeTwoEdgesSymmetric(const Handle(Prs3d_Presentation)& aprs)
{
BRepAdaptor_Curve cu1(TopoDS::Edge(myFShape));
if (cu1.GetType() != GeomAbs_Line && cu1.GetType() != GeomAbs_Circle) return;
BRepAdaptor_Curve cu2(TopoDS::Edge(mySShape));
if (cu2.GetType() != GeomAbs_Line && cu2.GetType() != GeomAbs_Circle) return;
// gp_Pnt pint3d,ptat11,ptat12,ptat21,ptat22;
gp_Pnt ptat11,ptat12,ptat21,ptat22;
Handle(Geom_Curve) geom1,geom2;
Standard_Boolean isInfinite1,isInfinite2;
Handle(Geom_Curve) extCurv;
if (!AIS::ComputeGeometry(TopoDS::Edge(myFShape),
TopoDS::Edge(mySShape),
myExtShape,
geom1,
geom2,
ptat11,
ptat12,
ptat21,
ptat22,
extCurv,
isInfinite1,isInfinite2,
myPlane)) {
return;
}
aprs->SetInfiniteState((isInfinite1 || isInfinite2) && (myExtShape !=0));
Handle(Geom_Line) geom_axis,extcurve;
gp_Pnt p1,p2;
Standard_Boolean isinfinite,isonplane;
if (!AIS::ComputeGeometry(TopoDS::Edge(myTool),
geom_axis,p1,p2,
extcurve,
isinfinite,
isonplane,
myPlane)) return;
gp_Lin laxis (geom_axis->Lin());
myAxisDirAttach = laxis.Direction();
if(cu1.GetType() == GeomAbs_Line){
Handle(Geom_Line) geom_lin1 (Handle(Geom_Line)::DownCast (geom1));
gp_Lin l1(geom_lin1->Lin());
myFDirAttach = l1.Direction();
}
gp_Circ circ;
if(cu1.GetType() == GeomAbs_Circle){
Handle(Geom_Circle) geom_cir1 (Handle(Geom_Circle)::DownCast (geom1));
gp_Circ c(geom_cir1->Circ());
circ = c;
}
// recherche points attache
gp_Pnt ProjOffset = ElCLib::Value(ElCLib::Parameter(laxis,myPosition),laxis);
/*//----------------------------------------------------
//Quand on fait la symetrie de 2 edges consecutifs:
//
// :<-- Axe
// :
// /:\
// Edge n --->/ : \
// / : \<-- Edge n+1
// :
//----------------------------------------------------
*/
Standard_Boolean idem = Standard_False;
if (isInfinite1 && isInfinite2) { // geom1 et geom2 sont des lignes
const gp_Lin& line2 = Handle(Geom_Line)::DownCast (geom2)->Lin();
if (myAutomaticPosition) {
myFAttach = Handle(Geom_Line)::DownCast (geom1)->Lin().Location();
mySAttach = ElCLib::Value(ElCLib::Parameter(line2,myFAttach),line2);
}
else {
const gp_Lin& line1 = Handle(Geom_Line)::DownCast (geom1)->Lin();
myFAttach = ElCLib::Value(ElCLib::Parameter(line1,myPosition),line1);
mySAttach = ElCLib::Value(ElCLib::Parameter(line2,myFAttach),line2);
}
}
else if (!isInfinite1 && !isInfinite2) {
if (ptat11.IsEqual(ptat21,Precision::Confusion())) {
myFAttach = ptat12;
mySAttach = ptat22;
idem = Standard_True;
}
if (ptat11.IsEqual(ptat22,Precision::Confusion())) {
myFAttach = ptat12;
mySAttach = ptat21;
idem = Standard_True;
}
if (ptat12.IsEqual(ptat21,Precision::Confusion())) {
myFAttach = ptat11;
mySAttach = ptat22;
idem = Standard_True;
}
if (ptat12.IsEqual(ptat22,Precision::Confusion())) {
myFAttach = ptat11;
mySAttach = ptat21;
idem = Standard_True;
}
if(!idem){
if( ProjOffset.SquareDistance(ptat11) > ProjOffset.SquareDistance(ptat12)) myFAttach = ptat12;
else myFAttach = ptat11;
if (ProjOffset.SquareDistance(ptat21) > ProjOffset.SquareDistance(ptat22)) mySAttach = ptat22;
else mySAttach = ptat21;
}
}
else if (isInfinite1) {// geom1 et geom2 sont des lignes
mySAttach = ptat21;
const gp_Lin& line1 = Handle(Geom_Line)::DownCast (geom1)->Lin();
myFAttach = ElCLib::Value(ElCLib::Parameter(line1,mySAttach),line1);
}
else if (isInfinite2) {// geom1 et geom2 sont des lignes
myFAttach = ptat11;
const gp_Lin& line2 = Handle(Geom_Line)::DownCast (geom2)->Lin();
mySAttach = ElCLib::Value(ElCLib::Parameter(line2,myFAttach),line2);
}
if( !myArrowSizeIsDefined )
myArrowSize = myFAttach.Distance(mySAttach)/50.;
//----------------------------------------------------
//----------------------------------------------------
// Si myFAttach <> mySAttach et PjFAttach = myFAttach
//----------------------------------------------------
gp_Pnt PjFAttach = ElCLib::Value(ElCLib::Parameter(laxis,myFAttach),laxis);
if (PjFAttach.IsEqual(myFAttach,Precision::Confusion())){
Handle(Geom_Line) geom_lin2 (Handle(Geom_Line)::DownCast (geom2));
gp_Lin l2(geom_lin2->Lin());
myFDirAttach = l2.Direction();
gp_Pnt PntTempo;
PntTempo = myFAttach;
myFAttach = mySAttach;
mySAttach = PntTempo;
PjFAttach = ElCLib::Value(ElCLib::Parameter(laxis,myFAttach),laxis);
}
//----------------------------------------------------
// gp_Pnt curpos;
if (myAutomaticPosition) {
//gp_Pnt PjFAttach = ElCLib::Value(ElCLib::Parameter(laxis,myFAttach),laxis);
// offset pour eviter confusion Edge et Dimension
gp_Vec offset(myAxisDirAttach);
offset = offset * myArrowSize * (-5);
gp_Vec Vt(myFAttach, PjFAttach);
gp_Pnt curpos = PjFAttach.Translated(offset.Added(Vt.Multiplied(.15)));
myPosition = curpos;
}
gp_Pnt Pj1 = ElCLib::Value(ElCLib::Parameter(laxis,myFAttach),laxis);
gp_Pnt Pj2 = ElCLib::Value(ElCLib::Parameter(laxis,mySAttach),laxis);
if ((myFAttach.SquareDistance(Pj1)+mySAttach.SquareDistance(Pj2)) <= Precision::Confusion()) myArrowSize = 0.;
Handle(Prs3d_DimensionAspect) la = myDrawer->DimensionAspect();
Handle(Prs3d_ArrowAspect) arr = la->ArrowAspect();
arr->SetLength(myArrowSize);
arr = la->ArrowAspect();
arr->SetLength(myArrowSize);
if(cu1.GetType() == GeomAbs_Line)
DsgPrs_SymmetricPresentation::Add(aprs,
myDrawer,
myFAttach,
mySAttach,
myFDirAttach,
laxis,
myPosition);
if(cu1.GetType() == GeomAbs_Circle)
DsgPrs_SymmetricPresentation::Add(aprs,
myDrawer,
myFAttach,
mySAttach,
circ,
laxis,
myPosition);
if ( (myExtShape != 0) && !extCurv.IsNull()) {
gp_Pnt pf, pl;
if ( myExtShape == 1 ) {
if (!isInfinite1) {
pf = ptat11;
pl = ptat12;
}
ComputeProjEdgePresentation(aprs,TopoDS::Edge(myFShape),geom1,pf,pl);
}
else {
if (!isInfinite2) {
pf = ptat21;
pl = ptat22;
}
ComputeProjEdgePresentation(aprs,TopoDS::Edge(mySShape),geom2,pf,pl);
}
}
}
//=======================================================================
//function : ComputeTwoVertexsSymmetric
//purpose :
//=======================================================================
void AIS_SymmetricRelation::ComputeTwoVerticesSymmetric(const Handle(Prs3d_Presentation)& aprs)
{
if(myFShape.ShapeType() != TopAbs_VERTEX || mySShape.ShapeType() != TopAbs_VERTEX) return;
Handle(Geom_Line) geom_axis,extcurve;
gp_Pnt p1,p2;
Standard_Boolean isinfinite,isonplane;
if (!AIS::ComputeGeometry(TopoDS::Edge(myTool),
geom_axis,p1,p2,
extcurve,
isinfinite,
isonplane,
myPlane)) return;
Standard_Boolean isOnPlane1, isOnPlane2;
AIS::ComputeGeometry(TopoDS::Vertex(myFShape), myFAttach, myPlane, isOnPlane1);
AIS::ComputeGeometry(TopoDS::Vertex(mySShape), mySAttach, myPlane, isOnPlane2);
if( !myArrowSizeIsDefined )
myArrowSize = myFAttach.Distance(mySAttach)/50.;
if (isOnPlane1 && isOnPlane2)
myExtShape = 0;
else if ( isOnPlane1 && !isOnPlane2)
myExtShape = 2;
else if (!isOnPlane1 && isOnPlane2)
myExtShape = 1;
else
return ;
gp_Lin laxis (geom_axis->Lin());
myAxisDirAttach = laxis.Direction();
// recherche points attache
// gp_Pnt curpos;
if (myAutomaticPosition) {
gp_Pnt PjFAttach = ElCLib::Value(ElCLib::Parameter(laxis,myFAttach),laxis);
// offset pour eviter confusion Edge et Dimension
gp_Vec offset(myAxisDirAttach);
offset = offset * myArrowSize * (-5);
gp_Vec Vt(myFAttach, PjFAttach);
gp_Pnt curpos = PjFAttach.Translated(offset.Added(Vt.Multiplied(.15)));
myPosition = curpos;
}
if (2*(myFAttach.Distance(mySAttach)) <= Precision::Confusion()) myArrowSize = 0.;
Handle(Prs3d_DimensionAspect) la = myDrawer->DimensionAspect();
Handle(Prs3d_ArrowAspect) arr = la->ArrowAspect();
arr->SetLength(myArrowSize);
arr = la->ArrowAspect();
arr->SetLength(myArrowSize);
DsgPrs_SymmetricPresentation::Add(aprs,
myDrawer,
myFAttach,
mySAttach,
laxis,
myPosition);
if ( myExtShape == 1)
ComputeProjVertexPresentation(aprs,TopoDS::Vertex(myFShape),myFAttach);
else if ( myExtShape == 2)
ComputeProjVertexPresentation(aprs,TopoDS::Vertex(mySShape),mySAttach);
}
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