[occt.git] / src / AIS / AIS_MaxRadiusDimension.cxx

// Created on: 1998-01-23
// Created by: Sergey ZARITCHNY
// Copyright (c) 1998-1999 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.

#define BUC60915        //GG 05/06/01 Enable to compute the requested arrow size
//                      if any in all dimensions.

#include <Standard_NotImplemented.hxx>

#include <AIS_MaxRadiusDimension.ixx>
#include <AIS_EllipseRadiusDimension.hxx>
#include <TCollection_ExtendedString.hxx>

#include <Prs3d_DimensionAspect.hxx>
#include <Prs3d_ArrowAspect.hxx>
#include <Prs3d_Drawer.hxx>
#include <Prs3d_TextAspect.hxx>
#include <Prs3d_Text.hxx> 

#include <Select3D_SensitiveSegment.hxx>
#include <Select3D_SensitiveCurve.hxx>
#include <Select3D_SensitiveBox.hxx>
#include <SelectMgr_EntityOwner.hxx>

#include <ElCLib.hxx>
#include <ElSLib.hxx>

#include <TopoDS.hxx>

#include <BRepAdaptor_Surface.hxx>
#include <BRepAdaptor_Curve.hxx>

#include <Geom_Ellipse.hxx>
#include <Geom_TrimmedCurve.hxx>
#include <Geom_Plane.hxx>
#include <Geom_Surface.hxx>
#include <Geom_CylindricalSurface.hxx>
#include <Geom_SurfaceOfRevolution.hxx>
#include <Geom_CylindricalSurface.hxx>
#include <Geom_SurfaceOfLinearExtrusion.hxx>

#include <gp_Pln.hxx>
#include <gp_Pnt.hxx>
#include <gp_Lin.hxx>
#include <gp_Ax1.hxx>
#include <gp_Dir.hxx>
#include <gp_Vec.hxx>

#include <AIS.hxx>
#include <AIS_Drawer.hxx>

#include <Precision.hxx>
#include <DsgPrs_EllipseRadiusPresentation.hxx>

//=======================================================================
//function : AIS_MaxRadiusDimension
//purpose  : 
//=======================================================================

AIS_MaxRadiusDimension::AIS_MaxRadiusDimension(const TopoDS_Shape& aShape, 
					       const Standard_Real aVal, 
					       const TCollection_ExtendedString& aText)
:AIS_EllipseRadiusDimension(aShape, aText)
{
  myVal = aVal;
  mySymbolPrs = DsgPrs_AS_LASTAR;
  myAutomaticPosition = Standard_True;
  myArrowSize = myVal / 100.;
}

//=======================================================================
//function : AIS_MaxRadiusDimension
//purpose  : 
//=======================================================================

AIS_MaxRadiusDimension::AIS_MaxRadiusDimension(const TopoDS_Shape& aShape, 
					       const Standard_Real aVal, 
					       const TCollection_ExtendedString& aText,
					       const gp_Pnt& aPosition, 
					       const DsgPrs_ArrowSide aSymbolPrs,
					       const Standard_Real anArrowSize)
:AIS_EllipseRadiusDimension(aShape, aText)
{
  myVal = aVal;
  mySymbolPrs = aSymbolPrs;
  myPosition = aPosition;
  myAutomaticPosition = Standard_False;
#ifdef BUC60915
  SetArrowSize( anArrowSize );
#else
  myArrowSize = anArrowSize;
#endif
}

//=======================================================================
//function : Compute
//purpose  : 
//=======================================================================

void AIS_MaxRadiusDimension::Compute(const Handle(PrsMgr_PresentationManager3d)& /*aPresentationManager*/,
				     const Handle(Prs3d_Presentation)& aPresentation, 
				     const Standard_Integer /*aMode*/)
{
  aPresentation->Clear();

//  if( myAutomaticPosition )
    {//ota : recompute in any case 
      ComputeGeometry();
      myEllipse.SetMajorRadius(myVal);
      gp_Vec v1(myEllipse.XAxis().Direction());
      v1 *=myVal;
      myApexP = myEllipse.Location().Translated(v1); 
      myApexN = myEllipse.Location().Translated(-v1); 
    }
  if(myIsAnArc) ComputeArcOfEllipse(aPresentation);
  else 
    ComputeEllipse(aPresentation);
}

//=======================================================================
//function : Compute
//purpose  : to avoid warning
//=======================================================================

void  AIS_MaxRadiusDimension::Compute(const Handle(Prs3d_Projector)& aProjector,
                                      const Handle(Prs3d_Presentation)& aPresentation)
{
// Standard_NotImplemented::Raise("AIS_MaxRadiusDimension::Compute(const Handle(Prs3d_Projector)& aProjector, const Handle(Prs3d_Presentation)& aPresentation)");
 PrsMgr_PresentableObject::Compute( aProjector , aPresentation ) ;
}

//=======================================================================
//function : Compute
//purpose  : 
//=======================================================================

void AIS_MaxRadiusDimension::Compute(const Handle(Prs3d_Projector)& aProjector,
                                     const Handle(Geom_Transformation)& aTransformation,
                                     const Handle(Prs3d_Presentation)& aPresentation)
{
// Standard_NotImplemented::Raise("AIS_MaxRadiusDimension::Compute(const Handle(Prs3d_Projector)&, const Handle(Geom_Transformation)&, const Handle(Prs3d_Presentation)&)");
 PrsMgr_PresentableObject::Compute( aProjector , aTransformation , aPresentation ) ;
}


//=======================================================================
//function : ComputeEllipse
//purpose  : 
//=======================================================================

void AIS_MaxRadiusDimension::ComputeEllipse(const Handle(Prs3d_Presentation)& aPresentation)
{

  Handle(Prs3d_DimensionAspect) la = myDrawer->DimensionAspect();
  Handle(Prs3d_ArrowAspect) arr = la->ArrowAspect();
  
  // size
#ifdef BUC60915
  if( !myArrowSizeIsDefined ) {
    myArrowSize = Min(myArrowSize,myVal / 5.);
  }
  arr->SetLength(myArrowSize);
#else
  if (myVal / 5. > myArrowSize) {
    arr->SetLength(myArrowSize);
  }
  else {
    arr->SetLength(myVal / 5.);
  }
#endif

  Standard_Real U;//,V;
  gp_Pnt curPos, Center;
  Center = myEllipse.Location();
  if( myAutomaticPosition )
    {
      myPosition = Center;
      myEndOfArrow = myApexP;
      myAutomaticPosition = Standard_True;   
      
      if ( myIsSetBndBox )
	myPosition = AIS::TranslatePointToBound(myPosition, gp_Dir(gp_Vec( Center, myPosition )),
						myBndBox );	   
      curPos = myPosition;  
    }
  else //!AutomaticPosition
    {
      curPos = myPosition;
      gp_Lin L1(myEllipse.XAxis());
      U = ElCLib::Parameter ( L1, curPos );
      curPos = ElCLib::Value (U, L1);
      if (curPos.Distance(myApexP) < curPos.Distance(myApexN)) 
	myEndOfArrow = myApexP ;
      else
	myEndOfArrow = myApexN ;
    }
 
  // Presenatation  
  DsgPrs_EllipseRadiusPresentation::Add(aPresentation, myDrawer, myVal, myText, curPos,
					myEndOfArrow, Center, Standard_True, mySymbolPrs);

}

//=======================================================================
//function : ComputeArcOfEllipse
//purpose  : 
//=======================================================================

void AIS_MaxRadiusDimension::ComputeArcOfEllipse(const Handle(Prs3d_Presentation)& aPresentation)
{

  Handle(Prs3d_DimensionAspect) la = myDrawer->DimensionAspect();
  Handle(Prs3d_ArrowAspect) arr = la->ArrowAspect();
  
  // size
#ifdef BUC60915
  if( !myArrowSizeIsDefined ) {
    myArrowSize = Min(myArrowSize,myVal / 5.);
  }
  arr->SetLength(myArrowSize);
#else
  if (myVal / 5. > myArrowSize) {
    arr->SetLength(myArrowSize);
  }
  else {
    arr->SetLength(myVal / 5.);
  }
#endif
  
  Standard_Real par;
  gp_Pnt curPos, Center;
  Center = myEllipse.Location();
  Standard_Boolean IsInDomain = Standard_True;
  if( myAutomaticPosition )
    {
      myEndOfArrow = AIS::NearestApex(myEllipse, myApexP, myApexN,
				      myFirstPar, myLastPar, IsInDomain);
      myPosition = Center;
      myAutomaticPosition = Standard_True;
      if ( myIsSetBndBox )
	myPosition = AIS::TranslatePointToBound(myPosition, gp_Dir(gp_Vec( Center, myPosition )),
						myBndBox );
      curPos = myPosition;  
    }
  else //!AutomaticPosition
    {
      curPos = myPosition;
//      ElSLib::Parameters ( myPlane->Pln(), curPos, U, V );
//      curPos = ElSLib::Value (U, V, myPlane->Pln());
      gp_Lin L1(myEllipse.XAxis());
      par = ElCLib::Parameter ( L1, curPos );
      curPos = ElCLib::Value (par, L1);
      if (curPos.Distance(myApexP) < curPos.Distance(myApexN)) 
	myEndOfArrow = myApexP ;
      else
	myEndOfArrow = myApexN ;
      par = ElCLib::Parameter ( myEllipse, myEndOfArrow );
      IsInDomain = AIS::InDomain( myFirstPar, myLastPar, par );
      myPosition = curPos;
    }

//  Standard_Real parEnd = ElCLib::Parameter ( myEllipse, myEndOfArrow );
  Standard_Real parStart = 0.;
  if( !IsInDomain )
    {
      if(AIS::DistanceFromApex (myEllipse, myEndOfArrow, myFirstPar) <
	 AIS::DistanceFromApex (myEllipse, myEndOfArrow, myLastPar))
	parStart = myFirstPar;
      else
	parStart = myLastPar;
    }
  if(!myIsOffset)
    DsgPrs_EllipseRadiusPresentation::Add(aPresentation, myDrawer, myVal, myText, myEllipse,
					  curPos, myEndOfArrow, Center, parStart, IsInDomain,
					  Standard_True, mySymbolPrs);
  else 
    DsgPrs_EllipseRadiusPresentation::Add(aPresentation, myDrawer, myVal, myText, myOffsetCurve,
					  curPos, myEndOfArrow, Center, parStart, IsInDomain,
					  Standard_True, mySymbolPrs);
}

//=======================================================================
//function : ComputeSelection
//purpose  : 
//=======================================================================

void AIS_MaxRadiusDimension::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection, 
					      const Standard_Integer /*aMode*/)
{

    gp_Pnt        center  = myEllipse.Location();
    gp_Pnt AttachmentPoint = myPosition;
    Standard_Real dist    = center.Distance(AttachmentPoint);
    Standard_Real aRadius = myVal;
    //Standard_Real inside  = Standard_False;
    gp_Pnt pt1;
    if (dist > aRadius) pt1 = AttachmentPoint; 
    else 
      pt1 = myEndOfArrow;
    Handle(SelectMgr_EntityOwner) own = new SelectMgr_EntityOwner(this,7);
    Handle(Select3D_SensitiveSegment) 
      seg = new Select3D_SensitiveSegment(own, center , pt1);
    aSelection->Add(seg);

    // Text
    Standard_Real size(Min(myVal/100.+1.e-6,myArrowSize+1.e-6));
    Handle( Select3D_SensitiveBox ) box = new Select3D_SensitiveBox( own,
								     AttachmentPoint.X(),
								     AttachmentPoint.Y(),
								     AttachmentPoint.Z(),
								     AttachmentPoint.X()+size,
								     AttachmentPoint.Y()+size,
								     AttachmentPoint.Z()+size);
  aSelection->Add(box);

  // Arc of Ellipse
    if(myIsAnArc)
      {
	
	Standard_Real parEnd = ElCLib::Parameter ( myEllipse, myEndOfArrow );
	if(!AIS::InDomain(myFirstPar, myLastPar, parEnd))
	  {
	    Standard_Real parStart, par;
	    if(AIS::DistanceFromApex (myEllipse, myEndOfArrow, myFirstPar) <
	       AIS::DistanceFromApex (myEllipse, myEndOfArrow, myLastPar))
	      par = myFirstPar;
	    else
	      par = myLastPar;
	    gp_Vec Vapex(center, ElCLib::Value( parEnd, myEllipse )) ;
	    gp_Vec Vpnt (center, ElCLib::Value( par, myEllipse )) ;
	    gp_Dir dir(Vpnt ^ Vapex);
	    if(myEllipse.Position().Direction().IsOpposite( dir, Precision::Angular())) {
	      parStart = parEnd;
	      parEnd   = par;
	    }
	    else 
	      parStart = par;

	    Handle(Geom_TrimmedCurve)TrimCurve;
	    if(myIsOffset)
	      {
		Handle(Geom_Curve) aCurve = myOffsetCurve;
		TrimCurve = new Geom_TrimmedCurve( aCurve,  parStart, parEnd );
	      }
	    else
	      {
		Handle(Geom_Ellipse) Ellipse = new Geom_Ellipse( myEllipse );
		TrimCurve = new Geom_TrimmedCurve( Ellipse,  parStart, parEnd );
	      }
	    Handle( Select3D_SensitiveCurve ) SensArc;
	    SensArc = new Select3D_SensitiveCurve( own, TrimCurve );
	    aSelection->Add( SensArc );
	  }
    }

}
Commit	Line	Data
b311480e	1	// Created on: 1998-01-23
	2	// Created by: Sergey ZARITCHNY
	3	// Copyright (c) 1998-1999 Matra Datavision
973c2be1	4	// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e	5	//
973c2be1	6	// This file is part of Open CASCADE Technology software library.
b311480e	7	//
d5f74e42	8	// This library is free software; you can redistribute it and/or modify it under
d5f74e42	9	// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1	10	// by the Free Software Foundation, with special exception defined in the file
	11	// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
	12	// distribution for complete text of the license and disclaimer of any warranty.
b311480e	13	//
973c2be1	14	// Alternatively, this file may be used under the terms of Open CASCADE
973c2be1	15	// commercial license or contractual agreement.
7fd59977	16
	17	#define BUC60915 //GG 05/06/01 Enable to compute the requested arrow size
	18	// if any in all dimensions.
	19
	20	#include <Standard_NotImplemented.hxx>
	21
	22	#include <AIS_MaxRadiusDimension.ixx>
	23	#include <AIS_EllipseRadiusDimension.hxx>
	24	#include <TCollection_ExtendedString.hxx>
	25
a6eb515f	26	#include <Prs3d_DimensionAspect.hxx>
7fd59977	27	#include <Prs3d_ArrowAspect.hxx>
	28	#include <Prs3d_Drawer.hxx>
	29	#include <Prs3d_TextAspect.hxx>
	30	#include <Prs3d_Text.hxx>
	31
	32	#include <Select3D_SensitiveSegment.hxx>
	33	#include <Select3D_SensitiveCurve.hxx>
	34	#include <Select3D_SensitiveBox.hxx>
	35	#include <SelectMgr_EntityOwner.hxx>
	36
	37	#include <ElCLib.hxx>
	38	#include <ElSLib.hxx>
	39
	40	#include <TopoDS.hxx>
	41
	42	#include <BRepAdaptor_Surface.hxx>
	43	#include <BRepAdaptor_Curve.hxx>
	44
	45	#include <Geom_Ellipse.hxx>
	46	#include <Geom_TrimmedCurve.hxx>
	47	#include <Geom_Plane.hxx>
	48	#include <Geom_Surface.hxx>
	49	#include <Geom_CylindricalSurface.hxx>
	50	#include <Geom_SurfaceOfRevolution.hxx>
	51	#include <Geom_CylindricalSurface.hxx>
	52	#include <Geom_SurfaceOfLinearExtrusion.hxx>
	53
	54	#include <gp_Pln.hxx>
	55	#include <gp_Pnt.hxx>
	56	#include <gp_Lin.hxx>
	57	#include <gp_Ax1.hxx>
	58	#include <gp_Dir.hxx>
	59	#include <gp_Vec.hxx>
	60
	61	#include <AIS.hxx>
	62	#include <AIS_Drawer.hxx>
	63
	64	#include <Precision.hxx>
	65	#include <DsgPrs_EllipseRadiusPresentation.hxx>
	66
	67	//=======================================================================
	68	//function : AIS_MaxRadiusDimension
	69	//purpose :
	70	//=======================================================================
	71
	72	AIS_MaxRadiusDimension::AIS_MaxRadiusDimension(const TopoDS_Shape& aShape,
	73	const Standard_Real aVal,
	74	const TCollection_ExtendedString& aText)
	75	:AIS_EllipseRadiusDimension(aShape, aText)
	76	{
	77	myVal = aVal;
	78	mySymbolPrs = DsgPrs_AS_LASTAR;
	79	myAutomaticPosition = Standard_True;
	80	myArrowSize = myVal / 100.;
	81	}
	82
	83	//=======================================================================
	84	//function : AIS_MaxRadiusDimension
	85	//purpose :
	86	//=======================================================================
	87
	88	AIS_MaxRadiusDimension::AIS_MaxRadiusDimension(const TopoDS_Shape& aShape,
	89	const Standard_Real aVal,
	90	const TCollection_ExtendedString& aText,
91	const gp_Pnt& aPosition,
92	const DsgPrs_ArrowSide aSymbolPrs,
93	const Standard_Real anArrowSize)
94	:AIS_EllipseRadiusDimension(aShape, aText)
95	{
96	myVal = aVal;
97	mySymbolPrs = aSymbolPrs;
98	myPosition = aPosition;
99	myAutomaticPosition = Standard_False;
100	#ifdef BUC60915
101	SetArrowSize( anArrowSize );
102	#else
103	myArrowSize = anArrowSize;
104	#endif
105	}
106
107	//=======================================================================
108	//function : Compute
109	//purpose :
110	//=======================================================================
111
112	void AIS_MaxRadiusDimension::Compute(const Handle(PrsMgr_PresentationManager3d)& /aPresentationManager/,
113	const Handle(Prs3d_Presentation)& aPresentation,
114	const Standard_Integer /aMode/)
115	{
116	aPresentation->Clear();
117
118	// if( myAutomaticPosition )
119	{//ota : recompute in any case
120	ComputeGeometry();
121	myEllipse.SetMajorRadius(myVal);
122	gp_Vec v1(myEllipse.XAxis().Direction());
123	v1 *=myVal;
124	myApexP = myEllipse.Location().Translated(v1);
125	myApexN = myEllipse.Location().Translated(-v1);
126	}
127	if(myIsAnArc) ComputeArcOfEllipse(aPresentation);
128	else
129	ComputeEllipse(aPresentation);
130	}
131
132	//=======================================================================
133	//function : Compute
134	//purpose : to avoid warning
135	//=======================================================================
136
137	void AIS_MaxRadiusDimension::Compute(const Handle(Prs3d_Projector)& aProjector,
138	const Handle(Prs3d_Presentation)& aPresentation)
139	{
140	// Standard_NotImplemented::Raise("AIS_MaxRadiusDimension::Compute(const Handle(Prs3d_Projector)& aProjector, const Handle(Prs3d_Presentation)& aPresentation)");
141	PrsMgr_PresentableObject::Compute( aProjector , aPresentation ) ;
142	}
143
7fd59977	144	//=======================================================================
	145	//function : Compute
	146	//purpose :
	147	//=======================================================================
	148
857ffd5e	149	void AIS_MaxRadiusDimension::Compute(const Handle(Prs3d_Projector)& aProjector,
	150	const Handle(Geom_Transformation)& aTransformation,
	151	const Handle(Prs3d_Presentation)& aPresentation)
7fd59977	152	{
857ffd5e	153	// Standard_NotImplemented::Raise("AIS_MaxRadiusDimension::Compute(const Handle(Prs3d_Projector)&, const Handle(Geom_Transformation)&, const Handle(Prs3d_Presentation)&)");
7fd59977	154	PrsMgr_PresentableObject::Compute( aProjector , aTransformation , aPresentation ) ;
	155	}
	156
	157
	158	//=======================================================================
	159	//function : ComputeEllipse
	160	//purpose :
	161	//=======================================================================
	162
	163	void AIS_MaxRadiusDimension::ComputeEllipse(const Handle(Prs3d_Presentation)& aPresentation)
	164	{
	165
a6eb515f	166	Handle(Prs3d_DimensionAspect) la = myDrawer->DimensionAspect();
a6eb515f	167	Handle(Prs3d_ArrowAspect) arr = la->ArrowAspect();
7fd59977	168
	169	// size
	170	#ifdef BUC60915
	171	if( !myArrowSizeIsDefined ) {
	172	myArrowSize = Min(myArrowSize,myVal / 5.);
	173	}
	174	arr->SetLength(myArrowSize);
	175	#else
	176	if (myVal / 5. > myArrowSize) {
	177	arr->SetLength(myArrowSize);
	178	}
	179	else {
	180	arr->SetLength(myVal / 5.);
	181	}
	182	#endif
	183
	184	Standard_Real U;//,V;
	185	gp_Pnt curPos, Center;
	186	Center = myEllipse.Location();
	187	if( myAutomaticPosition )
	188	{
	189	myPosition = Center;
	190	myEndOfArrow = myApexP;
	191	myAutomaticPosition = Standard_True;
	192
	193	if ( myIsSetBndBox )
	194	myPosition = AIS::TranslatePointToBound(myPosition, gp_Dir(gp_Vec( Center, myPosition )),
	195	myBndBox );
	196	curPos = myPosition;
	197	}
	198	else //!AutomaticPosition
	199	{
	200	curPos = myPosition;
	201	gp_Lin L1(myEllipse.XAxis());
	202	U = ElCLib::Parameter ( L1, curPos );
	203	curPos = ElCLib::Value (U, L1);
	204	if (curPos.Distance(myApexP) < curPos.Distance(myApexN))
	205	myEndOfArrow = myApexP ;
	206	else
	207	myEndOfArrow = myApexN ;
	208	}
	209
	210	// Presenatation
	211	DsgPrs_EllipseRadiusPresentation::Add(aPresentation, myDrawer, myVal, myText, curPos,
	212	myEndOfArrow, Center, Standard_True, mySymbolPrs);
	213
	214	}
	215
	216	//=======================================================================
	217	//function : ComputeArcOfEllipse
	218	//purpose :
	219	//=======================================================================
	220
	221	void AIS_MaxRadiusDimension::ComputeArcOfEllipse(const Handle(Prs3d_Presentation)& aPresentation)
	222	{
	223
a6eb515f	224	Handle(Prs3d_DimensionAspect) la = myDrawer->DimensionAspect();
a6eb515f	225	Handle(Prs3d_ArrowAspect) arr = la->ArrowAspect();
7fd59977	226
	227	// size
	228	#ifdef BUC60915
	229	if( !myArrowSizeIsDefined ) {
	230	myArrowSize = Min(myArrowSize,myVal / 5.);
	231	}
	232	arr->SetLength(myArrowSize);
	233	#else
	234	if (myVal / 5. > myArrowSize) {
	235	arr->SetLength(myArrowSize);
	236	}
	237	else {
	238	arr->SetLength(myVal / 5.);
	239	}
	240	#endif
	241
	242	Standard_Real par;
	243	gp_Pnt curPos, Center;
	244	Center = myEllipse.Location();
	245	Standard_Boolean IsInDomain = Standard_True;
	246	if( myAutomaticPosition )
	247	{
	248	myEndOfArrow = AIS::NearestApex(myEllipse, myApexP, myApexN,
	249	myFirstPar, myLastPar, IsInDomain);
	250	myPosition = Center;
	251	myAutomaticPosition = Standard_True;
	252	if ( myIsSetBndBox )
	253	myPosition = AIS::TranslatePointToBound(myPosition, gp_Dir(gp_Vec( Center, myPosition )),
	254	myBndBox );
	255	curPos = myPosition;
	256	}
	257	else //!AutomaticPosition
	258	{
	259	curPos = myPosition;
	260	// ElSLib::Parameters ( myPlane->Pln(), curPos, U, V );
	261	// curPos = ElSLib::Value (U, V, myPlane->Pln());
	262	gp_Lin L1(myEllipse.XAxis());
	263	par = ElCLib::Parameter ( L1, curPos );
	264	curPos = ElCLib::Value (par, L1);
	265	if (curPos.Distance(myApexP) < curPos.Distance(myApexN))
	266	myEndOfArrow = myApexP ;
	267	else
	268	myEndOfArrow = myApexN ;
	269	par = ElCLib::Parameter ( myEllipse, myEndOfArrow );
	270	IsInDomain = AIS::InDomain( myFirstPar, myLastPar, par );
	271	myPosition = curPos;
	272	}
	273
	274	// Standard_Real parEnd = ElCLib::Parameter ( myEllipse, myEndOfArrow );
	275	Standard_Real parStart = 0.;
	276	if( !IsInDomain )
	277	{
	278	if(AIS::DistanceFromApex (myEllipse, myEndOfArrow, myFirstPar) <
	279	AIS::DistanceFromApex (myEllipse, myEndOfArrow, myLastPar))
	280	parStart = myFirstPar;
	281	else
	282	parStart = myLastPar;
	283	}
	284	if(!myIsOffset)
	285	DsgPrs_EllipseRadiusPresentation::Add(aPresentation, myDrawer, myVal, myText, myEllipse,
	286	curPos, myEndOfArrow, Center, parStart, IsInDomain,
	287	Standard_True, mySymbolPrs);
	288	else
	289	DsgPrs_EllipseRadiusPresentation::Add(aPresentation, myDrawer, myVal, myText, myOffsetCurve,
290	curPos, myEndOfArrow, Center, parStart, IsInDomain,
291	Standard_True, mySymbolPrs);
292	}
293
294	//=======================================================================
295	//function : ComputeSelection
296	//purpose :
297	//=======================================================================
298
299	void AIS_MaxRadiusDimension::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection,
300	const Standard_Integer /aMode/)
301	{
302
303	gp_Pnt center = myEllipse.Location();
304	gp_Pnt AttachmentPoint = myPosition;
305	Standard_Real dist = center.Distance(AttachmentPoint);
306	Standard_Real aRadius = myVal;
307	//Standard_Real inside = Standard_False;
308	gp_Pnt pt1;
309	if (dist > aRadius) pt1 = AttachmentPoint;
310	else
311	pt1 = myEndOfArrow;
312	Handle(SelectMgr_EntityOwner) own = new SelectMgr_EntityOwner(this,7);
313	Handle(Select3D_SensitiveSegment)
314	seg = new Select3D_SensitiveSegment(own, center , pt1);
315	aSelection->Add(seg);
316
317	// Text
318	Standard_Real size(Min(myVal/100.+1.e-6,myArrowSize+1.e-6));
319	Handle( Select3D_SensitiveBox ) box = new Select3D_SensitiveBox( own,
320	AttachmentPoint.X(),
321	AttachmentPoint.Y(),
322	AttachmentPoint.Z(),
323	AttachmentPoint.X()+size,
324	AttachmentPoint.Y()+size,
325	AttachmentPoint.Z()+size);
326	aSelection->Add(box);
327
328	// Arc of Ellipse
329	if(myIsAnArc)
330	{
331
332	Standard_Real parEnd = ElCLib::Parameter ( myEllipse, myEndOfArrow );
333	if(!AIS::InDomain(myFirstPar, myLastPar, parEnd))
334	{
335	Standard_Real parStart, par;
336	if(AIS::DistanceFromApex (myEllipse, myEndOfArrow, myFirstPar) <
337	AIS::DistanceFromApex (myEllipse, myEndOfArrow, myLastPar))
338	par = myFirstPar;
339	else
340	par = myLastPar;
341	gp_Vec Vapex(center, ElCLib::Value( parEnd, myEllipse )) ;
342	gp_Vec Vpnt (center, ElCLib::Value( par, myEllipse )) ;
343	gp_Dir dir(Vpnt ^ Vapex);
344	if(myEllipse.Position().Direction().IsOpposite( dir, Precision::Angular())) {
345	parStart = parEnd;
346	parEnd = par;
347	}
348	else
349	parStart = par;
350
351	Handle(Geom_TrimmedCurve)TrimCurve;
352	if(myIsOffset)
353	{
354	Handle(Geom_Curve) aCurve = myOffsetCurve;
355	TrimCurve = new Geom_TrimmedCurve( aCurve, parStart, parEnd );
356	}
357	else
358	{
359	Handle(Geom_Ellipse) Ellipse = new Geom_Ellipse( myEllipse );
360	TrimCurve = new Geom_TrimmedCurve( Ellipse, parStart, parEnd );
361	}
362	Handle( Select3D_SensitiveCurve ) SensArc;
363	SensArc = new Select3D_SensitiveCurve( own, TrimCurve );
364	aSelection->Add( SensArc );
365	}
366	}
367
368	}