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

// Created on: 2015-11-23
// Created by: Anastasia BORISOVA
// Copyright (c) 2015 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 <AIS_RubberBand.hxx>
#include <BRepMesh_DataStructureOfDelaun.hxx>
#include <BRepMesh_Delaun.hxx>
#include <Graphic3d_ArrayOfPolygons.hxx>
#include <Graphic3d_ArrayOfPolylines.hxx>
#include <Graphic3d_AspectFillArea3d.hxx>
#include <Graphic3d_GraphicDriver.hxx>
#include <Graphic3d_ArrayOfTriangles.hxx>
#include <Graphic3d_TransModeFlags.hxx>
#include <Graphic3d_ZLayerId.hxx>
#include <Prs3d_LineAspect.hxx>
#include <Prs3d_Root.hxx>
#include <Prs3d_ShadingAspect.hxx>
#include <SelectMgr_EntityOwner.hxx>
#include <V3d_Viewer.hxx>
#include <V3d_View.hxx>


#define MEMORY_BLOCK_SIZE 512 * 7

IMPLEMENT_STANDARD_RTTIEXT(AIS_RubberBand, AIS_InteractiveObject)
//=======================================================================
//function : Constructor
//purpose  :
//=======================================================================
AIS_RubberBand::AIS_RubberBand()
{
  myDrawer->SetLineAspect (new Prs3d_LineAspect (Quantity_NOC_WHITE, Aspect_TOL_SOLID, 1.0));
  myDrawer->SetShadingAspect (new Prs3d_ShadingAspect());
  myDrawer->ShadingAspect()->SetMaterial (Graphic3d_NOM_PLASTIC);
  myDrawer->ShadingAspect()->Aspect()->SetInteriorStyle (Aspect_IS_EMPTY);
  myDrawer->ShadingAspect()->SetTransparency (1.0);
  myDrawer->ShadingAspect()->SetColor (Quantity_NOC_WHITE);

  SetTransformPersistence (new Graphic3d_TransformPers (Graphic3d_TMF_2d, Aspect_TOTP_LEFT_LOWER));
  SetZLayer (Graphic3d_ZLayerId_TopOSD);
}

//=======================================================================
//function : Constructor
//purpose  :
//=======================================================================
AIS_RubberBand::AIS_RubberBand (const Quantity_Color& theLineColor,
                                const Aspect_TypeOfLine theLineType,
                                const Standard_Real theWidth)
{
  myDrawer->SetLineAspect (new Prs3d_LineAspect (theLineColor, theLineType, theWidth));
  myDrawer->SetShadingAspect (new Prs3d_ShadingAspect());
  myDrawer->ShadingAspect()->SetMaterial (Graphic3d_NOM_PLASTIC);
  myDrawer->ShadingAspect()->Aspect()->SetInteriorStyle (Aspect_IS_EMPTY);
  myDrawer->ShadingAspect()->SetTransparency (1.0);
  myDrawer->ShadingAspect()->SetColor (Quantity_NOC_WHITE);

  SetTransformPersistence (new Graphic3d_TransformPers (Graphic3d_TMF_2d, Aspect_TOTP_LEFT_LOWER));
  SetZLayer (Graphic3d_ZLayerId_TopOSD);
}

//=======================================================================
//function : Constructor
//purpose  :
//=======================================================================
AIS_RubberBand::AIS_RubberBand (const Quantity_Color& theLineColor,
                                const Aspect_TypeOfLine theLineType,
                                const Quantity_Color theFillColor,
                                const Standard_Real theTransparency,
                                const Standard_Real theLineWidth)
{
  myDrawer->SetLineAspect (new Prs3d_LineAspect (theLineColor, theLineType, theLineWidth));
  myDrawer->SetShadingAspect (new Prs3d_ShadingAspect());
  myDrawer->ShadingAspect()->SetMaterial (Graphic3d_NOM_PLASTIC);
  myDrawer->ShadingAspect()->SetColor (theFillColor);
  myDrawer->ShadingAspect()->Aspect()->SetInteriorStyle (Aspect_IS_SOLID);
  myDrawer->ShadingAspect()->SetTransparency (theTransparency);

  SetTransformPersistence (new Graphic3d_TransformPers (Graphic3d_TMF_2d, Aspect_TOTP_LEFT_LOWER));
  SetZLayer (Graphic3d_ZLayerId_TopOSD);
}

//=======================================================================
//function : Destructor
//purpose  :
//=======================================================================
AIS_RubberBand::~AIS_RubberBand()
{
  myPoints.Clear();
  myTriangles.Nullify();
  myBorders.Nullify();
}

//=======================================================================
//function : SetRectangle
//purpose  :
//=======================================================================
void AIS_RubberBand::SetRectangle (const Standard_Integer theMinX, const Standard_Integer theMinY,
                                   const Standard_Integer theMaxX, const Standard_Integer theMaxY)
{
  myPoints.Clear();
  myPoints.Append (Graphic3d_Vec2i (theMinX, theMinY));
  myPoints.Append (Graphic3d_Vec2i (theMinX, theMaxY));
  myPoints.Append (Graphic3d_Vec2i (theMaxX, theMaxY));
  myPoints.Append (Graphic3d_Vec2i (theMaxX, theMinY));
}

//=======================================================================
//function : AddPoint
//purpose  :
//=======================================================================
void AIS_RubberBand::AddPoint (const Graphic3d_Vec2i& thePoint)
{
  myPoints.Append (thePoint);
}

//=======================================================================
//function : AddPoint
//purpose  :
//=======================================================================
void AIS_RubberBand::RemoveLastPoint()
{
  myPoints.Remove (myPoints.Length());
}

//=======================================================================
//function : GetPoints
//purpose  :
//=======================================================================
const NCollection_Sequence<Graphic3d_Vec2i>& AIS_RubberBand::Points() const
{
  return myPoints;
}

//=======================================================================
//function : LineColor
//purpose  :
//=======================================================================
Quantity_Color AIS_RubberBand::LineColor() const
{
  return myDrawer->LineAspect()->Aspect()->Color();
}

//=======================================================================
//function : SetLineColor
//purpose  :
//=======================================================================
void AIS_RubberBand::SetLineColor (const Quantity_Color& theColor)
{
  myDrawer->LineAspect()->SetColor (theColor);
}

//=======================================================================
//function : FillColor
//purpose  :
//=======================================================================
Quantity_Color AIS_RubberBand::FillColor() const
{
  return myDrawer->ShadingAspect()->Color();
}

//=======================================================================
//function : SetFillColor
//purpose  :
//=======================================================================
void AIS_RubberBand::SetFillColor (const Quantity_Color& theColor)
{
  myDrawer->ShadingAspect()->SetColor (theColor);
}

//=======================================================================
//function : SetLineWidth
//purpose  :
//=======================================================================
void AIS_RubberBand::SetLineWidth (const Standard_Real theWidth) const
{
  myDrawer->LineAspect()->SetWidth (theWidth);
}

//=======================================================================
//function : SetLineWidth
//purpose  :
//=======================================================================
Standard_Real AIS_RubberBand::LineWidth() const
{
  return myDrawer->LineAspect()->Aspect()->Width();
}

//=======================================================================
//function : SetLineType
//purpose  :
//=======================================================================
void AIS_RubberBand::SetLineType (const Aspect_TypeOfLine theType)
{
  myDrawer->LineAspect()->SetTypeOfLine (theType);
}

//=======================================================================
//function : LineType
//purpose  :
//=======================================================================
Aspect_TypeOfLine AIS_RubberBand::LineType() const
{
  return myDrawer->LineAspect()->Aspect()->Type();
}

//=======================================================================
//function : SetFillTransparency
//purpose  :
//=======================================================================
void AIS_RubberBand::SetFillTransparency (const Standard_Real theValue) const
{
  myDrawer->ShadingAspect()->SetTransparency (theValue);
}

//=======================================================================
//function : SetFillTransparency
//purpose  :
//=======================================================================
Standard_Real AIS_RubberBand::FillTransparency() const
{
  return myDrawer->ShadingAspect()->Transparency();
}

//=======================================================================
//function : SetFilling
//purpose  :
//=======================================================================
void AIS_RubberBand::SetFilling (const Standard_Boolean theIsFilling)
{
  myDrawer->ShadingAspect()->Aspect()->SetInteriorStyle (theIsFilling ? Aspect_IS_SOLID : Aspect_IS_EMPTY);
}

//=======================================================================
//function : SetFilling
//purpose  :
//=======================================================================
void AIS_RubberBand::SetFilling (const Quantity_Color theColor, const Standard_Real theTransparency)
{
  SetFilling (Standard_True);
  SetFillTransparency (theTransparency);
  SetFillColor (theColor);
}

//=======================================================================
//function : IsFilling
//purpose  :
//=======================================================================
Standard_Boolean AIS_RubberBand::IsFilling() const
{
  Aspect_InteriorStyle aStyle = myDrawer->ShadingAspect()->Aspect()->InteriorStyle();
  return aStyle != Aspect_IS_EMPTY;
}

//=======================================================================
//function : fillTriangles
//purpose  :
//=======================================================================
Standard_Boolean AIS_RubberBand::fillTriangles()
{
  Handle(NCollection_IncAllocator) anAllocator = new NCollection_IncAllocator (MEMORY_BLOCK_SIZE);
  Handle(BRepMesh_DataStructureOfDelaun) aMeshStructure = new BRepMesh_DataStructureOfDelaun(anAllocator);
  Standard_Integer aPtsLower = myPoints.Lower();
  Standard_Integer aPtsUpper = myPoints.Upper();
  BRepMesh::Array1OfInteger anIndexes (0, myPoints.Length() - 1);
  for (Standard_Integer aPtIdx = aPtsLower; aPtIdx <= aPtsUpper; ++aPtIdx)
  {
    gp_XY aP ((Standard_Real)myPoints.Value (aPtIdx).x(),
              (Standard_Real)myPoints.Value (aPtIdx).y());
    BRepMesh_Vertex aVertex (aP, aPtIdx, BRepMesh_Frontier);
    anIndexes.ChangeValue (aPtIdx - aPtsLower) = aMeshStructure->AddNode (aVertex);
  }

  Standard_Real aPtSum = 0;
  for (Standard_Integer aIdx = aPtsLower; aIdx <= aPtsUpper; ++aIdx)
  {
    Standard_Integer aNextIdx = (aIdx % myPoints.Length()) + 1;
    aPtSum += (Standard_Real)(myPoints.Value (aNextIdx).x() - myPoints.Value (aIdx).x())
             * (Standard_Real)(myPoints.Value (aNextIdx).y() + myPoints.Value (aIdx).y());
  }
  Standard_Boolean isClockwiseOrdered = aPtSum < 0;

  for (Standard_Integer aIdx = 0; aIdx < anIndexes.Length(); ++aIdx)
  {
    Standard_Integer aPtIdx = isClockwiseOrdered ? aIdx : (aIdx + 1) % anIndexes.Length();
    Standard_Integer aNextPtIdx = isClockwiseOrdered ? (aIdx + 1) % anIndexes.Length() : aIdx;
    BRepMesh_Edge anEdge (anIndexes.Value (aPtIdx),
                          anIndexes.Value (aNextPtIdx),
                          BRepMesh_Frontier);
    aMeshStructure->AddLink (anEdge);
  }

  BRepMesh_Delaun aTriangulation (aMeshStructure, anIndexes);
  const BRepMesh::MapOfInteger& aTriangles = aMeshStructure->ElementsOfDomain();
  if (aTriangles.Extent() < 1)
    return Standard_False;


  Standard_Boolean toFill = Standard_False;
  if (myTriangles.IsNull() || myTriangles->VertexNumber() != aTriangles.Extent() * 3)
  {
    toFill = Standard_True;
    myTriangles = new Graphic3d_ArrayOfTriangles (aTriangles.Extent() * 3, 0, Standard_True);
  }

  Standard_Integer aVertexIndex = 1;
  BRepMesh::MapOfInteger::Iterator aTriangleIt (aTriangles);
  for (; aTriangleIt.More(); aTriangleIt.Next())
  {
    const Standard_Integer aTriangleId = aTriangleIt.Key();
    const BRepMesh_Triangle& aCurrentTriangle = aMeshStructure->GetElement (aTriangleId);

    if (aCurrentTriangle.Movability() == BRepMesh_Deleted)
      continue;

    Standard_Integer aTriangleVerts[3];
    aMeshStructure->ElementNodes (aCurrentTriangle, aTriangleVerts);

    gp_Pnt2d aPts[3];
    for (Standard_Integer aVertIdx = 0; aVertIdx < 3; ++aVertIdx)
    {
      const BRepMesh_Vertex& aVertex = aMeshStructure->GetNode (aTriangleVerts[aVertIdx]);
      aPts[aVertIdx] = aVertex.Coord();
    }

    if (toFill)
    {
      gp_Dir aNorm = gp::DZ();
      for (Standard_Integer anIt = 0; anIt < 3; ++anIt)
      {
        myTriangles->AddVertex (aPts[anIt].X(), aPts[anIt].Y(), 0.0,
                                aNorm.X(), aNorm.Y(), aNorm.Z());
      }
    }
    else
    {
      for (Standard_Integer anIt = 0; anIt < 3; ++anIt)
      {
        myTriangles->SetVertice (aVertexIndex++, (Standard_ShortReal)aPts[anIt].X(), (Standard_ShortReal)aPts[anIt].Y(), 0.0f);
      }
    }
  }

  aMeshStructure.Nullify();
  anAllocator.Nullify();

  return Standard_True;
}

//=======================================================================
//function : Compute
//purpose  :
//=======================================================================
void AIS_RubberBand::Compute (const Handle(PrsMgr_PresentationManager3d)& /*thePresentationManager*/,
                              const Handle(Prs3d_Presentation)& thePresentation,
                              const Standard_Integer /*theMode*/)
{
  Handle (Graphic3d_Group) aGroup = Prs3d_Root::CurrentGroup (thePresentation);

  // Draw filling
  if (IsFilling() && fillTriangles())
  {
    aGroup->SetGroupPrimitivesAspect (myDrawer->ShadingAspect()->Aspect());
    aGroup->AddPrimitiveArray (myTriangles);
  }

  // Draw frame
  if (myBorders.IsNull() || myBorders->VertexNumber() != myPoints.Length() + 1)
  {
     myBorders = new Graphic3d_ArrayOfPolylines (myPoints.Length() + 1);
     for (Standard_Integer anIt = 1; anIt <= myPoints.Length(); anIt++)
     {
       myBorders->AddVertex ((Standard_Real)myPoints.Value (anIt).x(),
                             (Standard_Real)myPoints.Value (anIt).y(), 0.0);
     }

     myBorders->AddVertex ((Standard_Real)myPoints.Value(1).x(),
                           (Standard_Real)myPoints.Value(1).y(), 0.0);

  }
  else
  {
    for (Standard_Integer anIt = 1; anIt <= myPoints.Length(); anIt++)
    {
          myBorders->SetVertice (anIt, (Standard_ShortReal)myPoints.Value (anIt).x(),
                                 (Standard_ShortReal)myPoints.Value (anIt).y(), 0.0f);
    }

    myBorders->SetVertice (myPoints.Length() + 1, (Standard_ShortReal)myPoints.Value(1).x(),
                           (Standard_ShortReal)myPoints.Value(1).y(), 0.0f);
  }

  aGroup->SetGroupPrimitivesAspect (myDrawer->LineAspect()->Aspect());
  aGroup->AddPrimitiveArray (myBorders);
}
Commit	Line	Data
b12e1c7b	1	// Created on: 2015-11-23
	2	// Created by: Anastasia BORISOVA
	3	// Copyright (c) 2015 OPEN CASCADE SAS
	4	//
	5	// This file is part of Open CASCADE Technology software library.
	6	//
	7	// This library is free software; you can redistribute it and/or modify it under
	8	// the terms of the GNU Lesser General Public License version 2.1 as published
	9	// by the Free Software Foundation, with special exception defined in the file
	10	// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
	11	// distribution for complete text of the license and disclaimer of any warranty.
	12	//
	13	// Alternatively, this file may be used under the terms of Open CASCADE
	14	// commercial license or contractual agreement.
	15
	16	#include <AIS_RubberBand.hxx>
	17	#include <BRepMesh_DataStructureOfDelaun.hxx>
	18	#include <BRepMesh_Delaun.hxx>
	19	#include <Graphic3d_ArrayOfPolygons.hxx>
	20	#include <Graphic3d_ArrayOfPolylines.hxx>
	21	#include <Graphic3d_AspectFillArea3d.hxx>
	22	#include <Graphic3d_GraphicDriver.hxx>
	23	#include <Graphic3d_ArrayOfTriangles.hxx>
	24	#include <Graphic3d_TransModeFlags.hxx>
	25	#include <Graphic3d_ZLayerId.hxx>
	26	#include <Prs3d_LineAspect.hxx>
	27	#include <Prs3d_Root.hxx>
	28	#include <Prs3d_ShadingAspect.hxx>
	29	#include <SelectMgr_EntityOwner.hxx>
	30	#include <V3d_Viewer.hxx>
	31	#include <V3d_View.hxx>
	32
	33
	34	#define MEMORY_BLOCK_SIZE 512 * 7
	35
	36	IMPLEMENT_STANDARD_RTTIEXT(AIS_RubberBand, AIS_InteractiveObject)
	37	//=======================================================================
	38	//function : Constructor
	39	//purpose :
	40	//=======================================================================
	41	AIS_RubberBand::AIS_RubberBand()
	42	{
	43	myDrawer->SetLineAspect (new Prs3d_LineAspect (Quantity_NOC_WHITE, Aspect_TOL_SOLID, 1.0));
	44	myDrawer->SetShadingAspect (new Prs3d_ShadingAspect());
69adb9ce	45	myDrawer->ShadingAspect()->SetMaterial (Graphic3d_NOM_PLASTIC);
b12e1c7b	46	myDrawer->ShadingAspect()->Aspect()->SetInteriorStyle (Aspect_IS_EMPTY);
	47	myDrawer->ShadingAspect()->SetTransparency (1.0);
	48	myDrawer->ShadingAspect()->SetColor (Quantity_NOC_WHITE);
	49
778cd667	50	SetTransformPersistence (new Graphic3d_TransformPers (Graphic3d_TMF_2d, Aspect_TOTP_LEFT_LOWER));
b12e1c7b	51	SetZLayer (Graphic3d_ZLayerId_TopOSD);
	52	}
	53
	54	//=======================================================================
	55	//function : Constructor
	56	//purpose :
	57	//=======================================================================
	58	AIS_RubberBand::AIS_RubberBand (const Quantity_Color& theLineColor,
	59	const Aspect_TypeOfLine theLineType,
	60	const Standard_Real theWidth)
	61	{
	62	myDrawer->SetLineAspect (new Prs3d_LineAspect (theLineColor, theLineType, theWidth));
	63	myDrawer->SetShadingAspect (new Prs3d_ShadingAspect());
69adb9ce	64	myDrawer->ShadingAspect()->SetMaterial (Graphic3d_NOM_PLASTIC);
b12e1c7b	65	myDrawer->ShadingAspect()->Aspect()->SetInteriorStyle (Aspect_IS_EMPTY);
	66	myDrawer->ShadingAspect()->SetTransparency (1.0);
	67	myDrawer->ShadingAspect()->SetColor (Quantity_NOC_WHITE);
	68
778cd667	69	SetTransformPersistence (new Graphic3d_TransformPers (Graphic3d_TMF_2d, Aspect_TOTP_LEFT_LOWER));
b12e1c7b	70	SetZLayer (Graphic3d_ZLayerId_TopOSD);
	71	}
	72
	73	//=======================================================================
	74	//function : Constructor
	75	//purpose :
	76	//=======================================================================
	77	AIS_RubberBand::AIS_RubberBand (const Quantity_Color& theLineColor,
	78	const Aspect_TypeOfLine theLineType,
	79	const Quantity_Color theFillColor,
	80	const Standard_Real theTransparency,
	81	const Standard_Real theLineWidth)
	82	{
	83	myDrawer->SetLineAspect (new Prs3d_LineAspect (theLineColor, theLineType, theLineWidth));
	84	myDrawer->SetShadingAspect (new Prs3d_ShadingAspect());
69adb9ce	85	myDrawer->ShadingAspect()->SetMaterial (Graphic3d_NOM_PLASTIC);
b12e1c7b	86	myDrawer->ShadingAspect()->SetColor (theFillColor);
	87	myDrawer->ShadingAspect()->Aspect()->SetInteriorStyle (Aspect_IS_SOLID);
	88	myDrawer->ShadingAspect()->SetTransparency (theTransparency);
	89
778cd667	90	SetTransformPersistence (new Graphic3d_TransformPers (Graphic3d_TMF_2d, Aspect_TOTP_LEFT_LOWER));
b12e1c7b	91	SetZLayer (Graphic3d_ZLayerId_TopOSD);
	92	}
	93
	94	//=======================================================================
	95	//function : Destructor
	96	//purpose :
	97	//=======================================================================
	98	AIS_RubberBand::~AIS_RubberBand()
	99	{
	100	myPoints.Clear();
	101	myTriangles.Nullify();
	102	myBorders.Nullify();
	103	}
	104
	105	//=======================================================================
	106	//function : SetRectangle
	107	//purpose :
	108	//=======================================================================
	109	void AIS_RubberBand::SetRectangle (const Standard_Integer theMinX, const Standard_Integer theMinY,
	110	const Standard_Integer theMaxX, const Standard_Integer theMaxY)
	111	{
	112	myPoints.Clear();
	113	myPoints.Append (Graphic3d_Vec2i (theMinX, theMinY));
	114	myPoints.Append (Graphic3d_Vec2i (theMinX, theMaxY));
	115	myPoints.Append (Graphic3d_Vec2i (theMaxX, theMaxY));
	116	myPoints.Append (Graphic3d_Vec2i (theMaxX, theMinY));
	117	}
	118
	119	//=======================================================================
	120	//function : AddPoint
	121	//purpose :
	122	//=======================================================================
	123	void AIS_RubberBand::AddPoint (const Graphic3d_Vec2i& thePoint)
	124	{
	125	myPoints.Append (thePoint);
	126	}
	127
	128	//=======================================================================
	129	//function : AddPoint
	130	//purpose :
	131	//=======================================================================
	132	void AIS_RubberBand::RemoveLastPoint()
	133	{
	134	myPoints.Remove (myPoints.Length());
	135	}
	136
	137	//=======================================================================
	138	//function : GetPoints
	139	//purpose :
	140	//=======================================================================
	141	const NCollection_Sequence<Graphic3d_Vec2i>& AIS_RubberBand::Points() const
	142	{
	143	return myPoints;
	144	}
	145
	146	//=======================================================================
	147	//function : LineColor
	148	//purpose :
	149	//=======================================================================
	150	Quantity_Color AIS_RubberBand::LineColor() const
	151	{
b6472664	152	return myDrawer->LineAspect()->Aspect()->Color();
b12e1c7b	153	}
	154
	155	//=======================================================================
	156	//function : SetLineColor
	157	//purpose :
	158	//=======================================================================
	159	void AIS_RubberBand::SetLineColor (const Quantity_Color& theColor)
	160	{
	161	myDrawer->LineAspect()->SetColor (theColor);
	162	}
	163
	164	//=======================================================================
	165	//function : FillColor
	166	//purpose :
	167	//=======================================================================
	168	Quantity_Color AIS_RubberBand::FillColor() const
	169	{
	170	return myDrawer->ShadingAspect()->Color();
	171	}
	172
	173	//=======================================================================
	174	//function : SetFillColor
	175	//purpose :
	176	//=======================================================================
	177	void AIS_RubberBand::SetFillColor (const Quantity_Color& theColor)
	178	{
	179	myDrawer->ShadingAspect()->SetColor (theColor);
	180	}
	181
	182	//=======================================================================
	183	//function : SetLineWidth
	184	//purpose :
	185	//=======================================================================
	186	void AIS_RubberBand::SetLineWidth (const Standard_Real theWidth) const
	187	{
	188	myDrawer->LineAspect()->SetWidth (theWidth);
	189	}
	190
	191	//=======================================================================
	192	//function : SetLineWidth
	193	//purpose :
	194	//=======================================================================
	195	Standard_Real AIS_RubberBand::LineWidth() const
	196	{
b6472664	197	return myDrawer->LineAspect()->Aspect()->Width();
b12e1c7b	198	}
	199
	200	//=======================================================================
	201	//function : SetLineType
	202	//purpose :
	203	//=======================================================================
	204	void AIS_RubberBand::SetLineType (const Aspect_TypeOfLine theType)
	205	{
	206	myDrawer->LineAspect()->SetTypeOfLine (theType);
	207	}
	208
	209	//=======================================================================
	210	//function : LineType
	211	//purpose :
	212	//=======================================================================
	213	Aspect_TypeOfLine AIS_RubberBand::LineType() const
	214	{
b6472664	215	return myDrawer->LineAspect()->Aspect()->Type();
b12e1c7b	216	}
	217
	218	//=======================================================================
	219	//function : SetFillTransparency
	220	//purpose :
	221	//=======================================================================
	222	void AIS_RubberBand::SetFillTransparency (const Standard_Real theValue) const
	223	{
	224	myDrawer->ShadingAspect()->SetTransparency (theValue);
	225	}
	226
	227	//=======================================================================
	228	//function : SetFillTransparency
	229	//purpose :
	230	//=======================================================================
	231	Standard_Real AIS_RubberBand::FillTransparency() const
	232	{
	233	return myDrawer->ShadingAspect()->Transparency();
	234	}
	235
	236	//=======================================================================
	237	//function : SetFilling
	238	//purpose :
	239	//=======================================================================
	240	void AIS_RubberBand::SetFilling (const Standard_Boolean theIsFilling)
	241	{
	242	myDrawer->ShadingAspect()->Aspect()->SetInteriorStyle (theIsFilling ? Aspect_IS_SOLID : Aspect_IS_EMPTY);
	243	}
	244
	245	//=======================================================================
	246	//function : SetFilling
	247	//purpose :
	248	//=======================================================================
	249	void AIS_RubberBand::SetFilling (const Quantity_Color theColor, const Standard_Real theTransparency)
	250	{
	251	SetFilling (Standard_True);
	252	SetFillTransparency (theTransparency);
	253	SetFillColor (theColor);
	254	}
	255
	256	//=======================================================================
	257	//function : IsFilling
	258	//purpose :
	259	//=======================================================================
	260	Standard_Boolean AIS_RubberBand::IsFilling() const
	261	{
b6472664	262	Aspect_InteriorStyle aStyle = myDrawer->ShadingAspect()->Aspect()->InteriorStyle();
b12e1c7b	263	return aStyle != Aspect_IS_EMPTY;
	264	}
	265
	266	//=======================================================================
	267	//function : fillTriangles
	268	//purpose :
	269	//=======================================================================
	270	Standard_Boolean AIS_RubberBand::fillTriangles()
	271	{
	272	Handle(NCollection_IncAllocator) anAllocator = new NCollection_IncAllocator (MEMORY_BLOCK_SIZE);
	273	Handle(BRepMesh_DataStructureOfDelaun) aMeshStructure = new BRepMesh_DataStructureOfDelaun(anAllocator);
	274	Standard_Integer aPtsLower = myPoints.Lower();
	275	Standard_Integer aPtsUpper = myPoints.Upper();
	276	BRepMesh::Array1OfInteger anIndexes (0, myPoints.Length() - 1);
	277	for (Standard_Integer aPtIdx = aPtsLower; aPtIdx <= aPtsUpper; ++aPtIdx)
	278	{
	279	gp_XY aP ((Standard_Real)myPoints.Value (aPtIdx).x(),
	280	(Standard_Real)myPoints.Value (aPtIdx).y());
	281	BRepMesh_Vertex aVertex (aP, aPtIdx, BRepMesh_Frontier);
	282	anIndexes.ChangeValue (aPtIdx - aPtsLower) = aMeshStructure->AddNode (aVertex);
	283	}
	284
	285	Standard_Real aPtSum = 0;
	286	for (Standard_Integer aIdx = aPtsLower; aIdx <= aPtsUpper; ++aIdx)
	287	{
	288	Standard_Integer aNextIdx = (aIdx % myPoints.Length()) + 1;
	289	aPtSum += (Standard_Real)(myPoints.Value (aNextIdx).x() - myPoints.Value (aIdx).x())
	290	* (Standard_Real)(myPoints.Value (aNextIdx).y() + myPoints.Value (aIdx).y());
	291	}
	292	Standard_Boolean isClockwiseOrdered = aPtSum < 0;
	293
	294	for (Standard_Integer aIdx = 0; aIdx < anIndexes.Length(); ++aIdx)
	295	{
	296	Standard_Integer aPtIdx = isClockwiseOrdered ? aIdx : (aIdx + 1) % anIndexes.Length();
	297	Standard_Integer aNextPtIdx = isClockwiseOrdered ? (aIdx + 1) % anIndexes.Length() : aIdx;
	298	BRepMesh_Edge anEdge (anIndexes.Value (aPtIdx),
	299	anIndexes.Value (aNextPtIdx),
	300	BRepMesh_Frontier);
	301	aMeshStructure->AddLink (anEdge);
	302	}
	303
	304	BRepMesh_Delaun aTriangulation (aMeshStructure, anIndexes);
	305	const BRepMesh::MapOfInteger& aTriangles = aMeshStructure->ElementsOfDomain();
	306	if (aTriangles.Extent() < 1)
	307	return Standard_False;
	308
	309
	310	Standard_Boolean toFill = Standard_False;
9d1bf7ae	311	if (myTriangles.IsNull() \|\| myTriangles->VertexNumber() != aTriangles.Extent() * 3)
b12e1c7b	312	{
b12e1c7b	313	toFill = Standard_True;
69adb9ce	314	myTriangles = new Graphic3d_ArrayOfTriangles (aTriangles.Extent() * 3, 0, Standard_True);
b12e1c7b	315	}
	316
	317	Standard_Integer aVertexIndex = 1;
	318	BRepMesh::MapOfInteger::Iterator aTriangleIt (aTriangles);
	319	for (; aTriangleIt.More(); aTriangleIt.Next())
	320	{
	321	const Standard_Integer aTriangleId = aTriangleIt.Key();
	322	const BRepMesh_Triangle& aCurrentTriangle = aMeshStructure->GetElement (aTriangleId);
	323
	324	if (aCurrentTriangle.Movability() == BRepMesh_Deleted)
	325	continue;
	326
	327	Standard_Integer aTriangleVerts[3];
	328	aMeshStructure->ElementNodes (aCurrentTriangle, aTriangleVerts);
	329
	330	gp_Pnt2d aPts[3];
	331	for (Standard_Integer aVertIdx = 0; aVertIdx < 3; ++aVertIdx)
	332	{
	333	const BRepMesh_Vertex& aVertex = aMeshStructure->GetNode (aTriangleVerts[aVertIdx]);
	334	aPts[aVertIdx] = aVertex.Coord();
	335	}
	336
	337	if (toFill)
	338	{
69adb9ce	339	gp_Dir aNorm = gp::DZ();
b12e1c7b	340	for (Standard_Integer anIt = 0; anIt < 3; ++anIt)
b12e1c7b	341	{
69adb9ce	342	myTriangles->AddVertex (aPts[anIt].X(), aPts[anIt].Y(), 0.0,
69adb9ce	343	aNorm.X(), aNorm.Y(), aNorm.Z());
b12e1c7b	344	}
	345	}
	346	else
	347	{
	348	for (Standard_Integer anIt = 0; anIt < 3; ++anIt)
	349	{
	350	myTriangles->SetVertice (aVertexIndex++, (Standard_ShortReal)aPts[anIt].X(), (Standard_ShortReal)aPts[anIt].Y(), 0.0f);
	351	}
	352	}
	353	}
	354
	355	aMeshStructure.Nullify();
	356	anAllocator.Nullify();
	357
	358	return Standard_True;
	359	}
	360
	361	//=======================================================================
	362	//function : Compute
	363	//purpose :
	364	//=======================================================================
	365	void AIS_RubberBand::Compute (const Handle(PrsMgr_PresentationManager3d)& /thePresentationManager/,
	366	const Handle(Prs3d_Presentation)& thePresentation,
	367	const Standard_Integer /theMode/)
	368	{
	369	Handle (Graphic3d_Group) aGroup = Prs3d_Root::CurrentGroup (thePresentation);
	370
	371	// Draw filling
	372	if (IsFilling() && fillTriangles())
	373	{
	374	aGroup->SetGroupPrimitivesAspect (myDrawer->ShadingAspect()->Aspect());
	375	aGroup->AddPrimitiveArray (myTriangles);
	376	}
	377
	378	// Draw frame
	379	if (myBorders.IsNull() \|\| myBorders->VertexNumber() != myPoints.Length() + 1)
	380	{
	381	myBorders = new Graphic3d_ArrayOfPolylines (myPoints.Length() + 1);
	382	for (Standard_Integer anIt = 1; anIt <= myPoints.Length(); anIt++)
	383	{
	384	myBorders->AddVertex ((Standard_Real)myPoints.Value (anIt).x(),
	385	(Standard_Real)myPoints.Value (anIt).y(), 0.0);
	386	}
	387
	388	myBorders->AddVertex ((Standard_Real)myPoints.Value(1).x(),
	389	(Standard_Real)myPoints.Value(1).y(), 0.0);
	390
	391	}
	392	else
	393	{
	394	for (Standard_Integer anIt = 1; anIt <= myPoints.Length(); anIt++)
	395	{
	396	myBorders->SetVertice (anIt, (Standard_ShortReal)myPoints.Value (anIt).x(),
	397	(Standard_ShortReal)myPoints.Value (anIt).y(), 0.0f);
	398	}
	399
	400	myBorders->SetVertice (myPoints.Length() + 1, (Standard_ShortReal)myPoints.Value(1).x(),
	401	(Standard_ShortReal)myPoints.Value(1).y(), 0.0f);
	402	}
	403
	404	aGroup->SetGroupPrimitivesAspect (myDrawer->LineAspect()->Aspect());
	405	aGroup->AddPrimitiveArray (myBorders);
	406	}