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

// 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 <AIS_DisplayMode.hxx>
#include <AIS_Triangulation.hxx>
#include <AIS_InteractiveObject.hxx>
#include <Standard_Type.hxx>
#include <Poly_Array1OfTriangle.hxx>
#include <Poly_Triangulation.hxx>
#include <Prs3d_Drawer.hxx>
#include <Prs3d_Root.hxx>
#include <Prs3d_ShadingAspect.hxx>
#include <TShort_Array1OfShortReal.hxx>
#include <TColgp_Array1OfPnt.hxx>
#include <TColStd_HArray1OfInteger.hxx>
#include <TShort_HArray1OfShortReal.hxx>
#include <Graphic3d_Group.hxx>
#include <Graphic3d_AspectFillArea3d.hxx>
#include <Graphic3d_ArrayOfTriangles.hxx>


IMPLEMENT_STANDARD_RTTIEXT(AIS_Triangulation,AIS_InteractiveObject)

AIS_Triangulation::AIS_Triangulation(const Handle(Poly_Triangulation)& Triangulation)
{
  myTriangulation = Triangulation;
  myNbNodes       = Triangulation->NbNodes();
  myNbTriangles   = Triangulation->NbTriangles();
  myFlagColor     = 0;
}

//=======================================================================
//function : SetTransparency
//purpose  :
//=======================================================================
void AIS_Triangulation::SetTransparency (const Standard_Real theValue)
{
  if (!myDrawer->HasOwnShadingAspect())
  {
    myDrawer->SetShadingAspect (new Prs3d_ShadingAspect());
    if (myDrawer->HasLink())
    {
      *myDrawer->ShadingAspect()->Aspect() = *myDrawer->Link()->ShadingAspect()->Aspect();
    }
  }

  // override transparency
  myDrawer->ShadingAspect()->SetTransparency (theValue, myCurrentFacingModel);
  myDrawer->SetTransparency ((Standard_ShortReal )theValue);

  updatePresentation();
}

//=======================================================================
//function : UnsetTransparency
//purpose  :
//=======================================================================
void AIS_Triangulation::UnsetTransparency()
{
  myDrawer->SetTransparency (0.0f);
  if (!myDrawer->HasOwnShadingAspect())
  {
    return;
  }
  else if (HasColor() || HasMaterial())
  {
    myDrawer->ShadingAspect()->SetTransparency (0.0, myCurrentFacingModel);
  }

  updatePresentation();
}

//=======================================================================
//function : updatePresentation
//purpose  :
//=======================================================================
void AIS_Triangulation::updatePresentation()
{
  if (HasVertexColors())
  {
    SetToUpdate (AIS_WireFrame);
  }
  else
  {
    // modify shading presentation without re-computation
    const PrsMgr_Presentations&        aPrsList  = Presentations();
    Handle(Graphic3d_AspectFillArea3d) anAreaAsp = myDrawer->ShadingAspect()->Aspect();
    for (PrsMgr_Presentations::Iterator aPrsIter (aPrsList); aPrsIter.More(); aPrsIter.Next())
    {
      if (aPrsIter.Value()->Mode() != AIS_WireFrame)
      {
        continue;
      }

      const Handle(Prs3d_Presentation)& aPrs = aPrsIter.Value();
      for (Graphic3d_SequenceOfGroup::Iterator aGroupIt (aPrs->Groups()); aGroupIt.More(); aGroupIt.Next())
      {
        const Handle(Graphic3d_Group)& aGroup = aGroupIt.Value();
        aGroup->SetGroupPrimitivesAspect (anAreaAsp);
      }
    }
  }
}

//=======================================================================
//function : Compute
//purpose  :
//=======================================================================
void AIS_Triangulation::Compute(const Handle(PrsMgr_PresentationManager3d)& /*aPresentationManager*/,
                                const Handle(Prs3d_Presentation)& aPresentation,
                                const Standard_Integer aMode)
{
  switch (aMode)
  {
    case 0:
      const TColgp_Array1OfPnt& nodes = myTriangulation->Nodes();             //Nodes
      const Poly_Array1OfTriangle& triangles = myTriangulation->Triangles();  //Triangle

      Standard_Boolean hasVNormals = myTriangulation->HasNormals();
      Standard_Boolean hasVColors  = HasVertexColors();

      Handle(Graphic3d_ArrayOfTriangles) anArray = new Graphic3d_ArrayOfTriangles (myNbNodes, myNbTriangles * 3,
                                                                                   hasVNormals, hasVColors, Standard_False);
      Handle(Graphic3d_Group) TheGroup = Prs3d_Root::CurrentGroup(aPresentation);
      Handle(Graphic3d_AspectFillArea3d) aspect = myDrawer->ShadingAspect()->Aspect();

      Standard_Integer i;
      Standard_Integer j;

      const Standard_Real ambient = 0.2;
      if (hasVNormals)
      {
        const TShort_Array1OfShortReal& normals = myTriangulation->Normals();
        if (hasVColors)
        {
          const TColStd_Array1OfInteger& colors = myColor->Array1();
          for ( i = nodes.Lower(); i <= nodes.Upper(); i++ )
          {
            j = (i - nodes.Lower()) * 3;
            anArray->AddVertex(nodes(i), attenuateColor(colors(i), ambient));
            anArray->SetVertexNormal(i, normals(j+1), normals(j+2), normals(j+3));
          }
        }
        else // !hasVColors
        {
          for ( i = nodes.Lower(); i <= nodes.Upper(); i++ )
          {
            j = (i - nodes.Lower()) * 3;
            anArray->AddVertex(nodes(i));
            anArray->SetVertexNormal(i, normals(j+1), normals(j+2), normals(j+3));
          }
        }
      }
      else // !hasVNormals
      {
        if (hasVColors)
        {
          const TColStd_Array1OfInteger& colors = myColor->Array1();
          for ( i = nodes.Lower(); i <= nodes.Upper(); i++ )
          {
            anArray->AddVertex(nodes(i), attenuateColor(colors(i), ambient));
          }
        }
        else // !hasVColors
        {
          for ( i = nodes.Lower(); i <= nodes.Upper(); i++ )
          {
            anArray->AddVertex(nodes(i));
          }
        }
      }

      Standard_Integer indexTriangle[3] = {0,0,0};
      for ( i = triangles.Lower(); i<= triangles.Upper(); i++ ) {
        triangles(i).Get(indexTriangle[0], indexTriangle[1], indexTriangle[2]);
        anArray->AddEdge(indexTriangle[0]);
        anArray->AddEdge(indexTriangle[1]);
        anArray->AddEdge(indexTriangle[2]);
      }
      TheGroup->SetPrimitivesAspect(aspect);
      TheGroup->AddPrimitiveArray(anArray);
      break;
  }
}

//=======================================================================
//function : ComputeSelection
//purpose  :
//=======================================================================
void AIS_Triangulation::ComputeSelection(const Handle(SelectMgr_Selection)& /*aSelection*/,
                                         const Standard_Integer /*aMode*/)
{

}

//=======================================================================
//function : SetColor
//purpose  : Set the color for each node.
//           Each 32-bit color is Alpha << 24 + Blue << 16 + Green << 8 + Red
//           Order of color components is essential for further usage by OpenGL
//=======================================================================
void AIS_Triangulation::SetColors(const Handle(TColStd_HArray1OfInteger)& aColor)
{
  myFlagColor = 1;
  myColor = aColor;
}

//=======================================================================
//function : GetColor
//purpose  : Get the color for each node.
//           Each 32-bit color is Alpha << 24 + Blue << 16 + Green << 8 + Red
//           Order of color components is essential for further usage by OpenGL
//=======================================================================

Handle(TColStd_HArray1OfInteger) AIS_Triangulation::GetColors() const
{
  return myColor;
}


//=======================================================================
//function : SetTriangulation
//purpose  :
//=======================================================================
void AIS_Triangulation::SetTriangulation(const Handle(Poly_Triangulation)& aTriangulation)
{
  myTriangulation = aTriangulation;
}

//=======================================================================
//function : GetTriangulation
//purpose  :
//=======================================================================
Handle(Poly_Triangulation) AIS_Triangulation::GetTriangulation() const{
  return myTriangulation;
}

//=======================================================================
//function : AttenuateColor
//purpose  :
//=======================================================================
Graphic3d_Vec4ub AIS_Triangulation::attenuateColor (const Standard_Integer theColor,
                                                    const Standard_Real    theComposition)
{
  const Standard_Byte* anRgbx = reinterpret_cast<const Standard_Byte*> (&theColor);

  // If IsTranparent() is false alpha value will be ignored anyway.
  Standard_Byte anAlpha = IsTransparent() ? static_cast<Standard_Byte> (255.0 - myDrawer->ShadingAspect()->Aspect()->FrontMaterial().Transparency() * 255.0)
                                          : 255;

  return Graphic3d_Vec4ub ((Standard_Byte)(theComposition * anRgbx[0]),
                           (Standard_Byte)(theComposition * anRgbx[1]),
                           (Standard_Byte)(theComposition * anRgbx[2]),
                           anAlpha);
}
Commit	Line	Data
973c2be1	1	// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e	2	//
973c2be1	3	// This file is part of Open CASCADE Technology software library.
b311480e	4	//
d5f74e42	5	// This library is free software; you can redistribute it and/or modify it under
d5f74e42	6	// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1	7	// by the Free Software Foundation, with special exception defined in the file
	8	// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
	9	// distribution for complete text of the license and disclaimer of any warranty.
b311480e	10	//
973c2be1	11	// Alternatively, this file may be used under the terms of Open CASCADE
973c2be1	12	// commercial license or contractual agreement.
b311480e	13
dcc17419	14	#include <AIS_DisplayMode.hxx>
7fd59977	15	#include <AIS_Triangulation.hxx>
7fd59977	16	#include <AIS_InteractiveObject.hxx>
ec357c5c	17	#include <Standard_Type.hxx>
7fd59977	18	#include <Poly_Array1OfTriangle.hxx>
7fd59977	19	#include <Poly_Triangulation.hxx>
6262338c	20	#include <Prs3d_Drawer.hxx>
7fd59977	21	#include <Prs3d_Root.hxx>
	22	#include <Prs3d_ShadingAspect.hxx>
	23	#include <TShort_Array1OfShortReal.hxx>
	24	#include <TColgp_Array1OfPnt.hxx>
	25	#include <TColStd_HArray1OfInteger.hxx>
	26	#include <TShort_HArray1OfShortReal.hxx>
	27	#include <Graphic3d_Group.hxx>
	28	#include <Graphic3d_AspectFillArea3d.hxx>
	29	#include <Graphic3d_ArrayOfTriangles.hxx>
7fd59977	30
7fd59977	31
92efcf78	32	IMPLEMENT_STANDARD_RTTIEXT(AIS_Triangulation,AIS_InteractiveObject)
92efcf78	33
7fd59977	34	AIS_Triangulation::AIS_Triangulation(const Handle(Poly_Triangulation)& Triangulation)
	35	{
	36	myTriangulation = Triangulation;
	37	myNbNodes = Triangulation->NbNodes();
	38	myNbTriangles = Triangulation->NbTriangles();
	39	myFlagColor = 0;
	40	}
	41
dcc17419	42	//=======================================================================
	43	//function : SetTransparency
	44	//purpose :
	45	//=======================================================================
	46	void AIS_Triangulation::SetTransparency (const Standard_Real theValue)
	47	{
	48	if (!myDrawer->HasOwnShadingAspect())
	49	{
	50	myDrawer->SetShadingAspect (new Prs3d_ShadingAspect());
	51	if (myDrawer->HasLink())
	52	{
	53	myDrawer->ShadingAspect()->Aspect() = myDrawer->Link()->ShadingAspect()->Aspect();
	54	}
	55	}
	56
	57	// override transparency
	58	myDrawer->ShadingAspect()->SetTransparency (theValue, myCurrentFacingModel);
f838dac4	59	myDrawer->SetTransparency ((Standard_ShortReal )theValue);
dcc17419	60
	61	updatePresentation();
	62	}
	63
	64	//=======================================================================
	65	//function : UnsetTransparency
	66	//purpose :
	67	//=======================================================================
	68	void AIS_Triangulation::UnsetTransparency()
	69	{
f838dac4	70	myDrawer->SetTransparency (0.0f);
dcc17419	71	if (!myDrawer->HasOwnShadingAspect())
	72	{
	73	return;
	74	}
	75	else if (HasColor() \|\| HasMaterial())
	76	{
	77	myDrawer->ShadingAspect()->SetTransparency (0.0, myCurrentFacingModel);
	78	}
	79
	80	updatePresentation();
	81	}
	82
	83	//=======================================================================
	84	//function : updatePresentation
	85	//purpose :
	86	//=======================================================================
	87	void AIS_Triangulation::updatePresentation()
	88	{
	89	if (HasVertexColors())
	90	{
	91	SetToUpdate (AIS_WireFrame);
	92	}
	93	else
	94	{
	95	// modify shading presentation without re-computation
	96	const PrsMgr_Presentations& aPrsList = Presentations();
	97	Handle(Graphic3d_AspectFillArea3d) anAreaAsp = myDrawer->ShadingAspect()->Aspect();
7dd7c146	98	for (PrsMgr_Presentations::Iterator aPrsIter (aPrsList); aPrsIter.More(); aPrsIter.Next())
dcc17419	99	{
7dd7c146	100	if (aPrsIter.Value()->Mode() != AIS_WireFrame)
dcc17419	101	{
	102	continue;
	103	}
	104
7dd7c146	105	const Handle(Prs3d_Presentation)& aPrs = aPrsIter.Value();
dcc17419	106	for (Graphic3d_SequenceOfGroup::Iterator aGroupIt (aPrs->Groups()); aGroupIt.More(); aGroupIt.Next())
	107	{
	108	const Handle(Graphic3d_Group)& aGroup = aGroupIt.Value();
bf5f0ca2	109	aGroup->SetGroupPrimitivesAspect (anAreaAsp);
dcc17419	110	}
dcc17419	111	}
dcc17419	112	}
	113	}
	114
7fd59977	115	//=======================================================================
	116	//function : Compute
	117	//purpose :
	118	//=======================================================================
35e08fe8	119	void AIS_Triangulation::Compute(const Handle(PrsMgr_PresentationManager3d)& /aPresentationManager/,
7fd59977	120	const Handle(Prs3d_Presentation)& aPresentation,
	121	const Standard_Integer aMode)
	122	{
7379f442	123	switch (aMode)
7fd59977	124	{
	125	case 0:
	126	const TColgp_Array1OfPnt& nodes = myTriangulation->Nodes(); //Nodes
	127	const Poly_Array1OfTriangle& triangles = myTriangulation->Triangles(); //Triangle
7fd59977	128
16e65a03	129	Standard_Boolean hasVNormals = myTriangulation->HasNormals();
dcc17419	130	Standard_Boolean hasVColors = HasVertexColors();
7fd59977	131
871fa103	132	Handle(Graphic3d_ArrayOfTriangles) anArray = new Graphic3d_ArrayOfTriangles (myNbNodes, myNbTriangles * 3,
871fa103	133	hasVNormals, hasVColors, Standard_False);
7fd59977	134	Handle(Graphic3d_Group) TheGroup = Prs3d_Root::CurrentGroup(aPresentation);
	135	Handle(Graphic3d_AspectFillArea3d) aspect = myDrawer->ShadingAspect()->Aspect();
	136
	137	Standard_Integer i;
	138	Standard_Integer j;
	139
61168418	140	const Standard_Real ambient = 0.2;
16e65a03	141	if (hasVNormals)
	142	{
	143	const TShort_Array1OfShortReal& normals = myTriangulation->Normals();
	144	if (hasVColors)
	145	{
	146	const TColStd_Array1OfInteger& colors = myColor->Array1();
	147	for ( i = nodes.Lower(); i <= nodes.Upper(); i++ )
	148	{
	149	j = (i - nodes.Lower()) * 3;
dcc17419	150	anArray->AddVertex(nodes(i), attenuateColor(colors(i), ambient));
16e65a03	151	anArray->SetVertexNormal(i, normals(j+1), normals(j+2), normals(j+3));
	152	}
	153	}
	154	else // !hasVColors
	155	{
	156	for ( i = nodes.Lower(); i <= nodes.Upper(); i++ )
	157	{
	158	j = (i - nodes.Lower()) * 3;
	159	anArray->AddVertex(nodes(i));
	160	anArray->SetVertexNormal(i, normals(j+1), normals(j+2), normals(j+3));
	161	}
	162	}
	163	}
	164	else // !hasVNormals
	165	{
	166	if (hasVColors)
	167	{
	168	const TColStd_Array1OfInteger& colors = myColor->Array1();
	169	for ( i = nodes.Lower(); i <= nodes.Upper(); i++ )
	170	{
dcc17419	171	anArray->AddVertex(nodes(i), attenuateColor(colors(i), ambient));
16e65a03	172	}
	173	}
	174	else // !hasVColors
	175	{
	176	for ( i = nodes.Lower(); i <= nodes.Upper(); i++ )
	177	{
	178	anArray->AddVertex(nodes(i));
	179	}
	180	}
7fd59977	181	}
	182
	183	Standard_Integer indexTriangle[3] = {0,0,0};
	184	for ( i = triangles.Lower(); i<= triangles.Upper(); i++ ) {
	185	triangles(i).Get(indexTriangle[0], indexTriangle[1], indexTriangle[2]);
b8ddfc2f	186	anArray->AddEdge(indexTriangle[0]);
	187	anArray->AddEdge(indexTriangle[1]);
	188	anArray->AddEdge(indexTriangle[2]);
7fd59977	189	}
7fd59977	190	TheGroup->SetPrimitivesAspect(aspect);
b8ddfc2f	191	TheGroup->AddPrimitiveArray(anArray);
7fd59977	192	break;
	193	}
	194	}
	195
	196	//=======================================================================
	197	//function : ComputeSelection
7379f442	198	//purpose :
7fd59977	199	//=======================================================================
35e08fe8	200	void AIS_Triangulation::ComputeSelection(const Handle(SelectMgr_Selection)& /aSelection/,
7fd59977	201	const Standard_Integer /aMode/)
	202	{
	203
	204	}
	205
	206	//=======================================================================
	207	//function : SetColor
	208	//purpose : Set the color for each node.
	209	// Each 32-bit color is Alpha << 24 + Blue << 16 + Green << 8 + Red
	210	// Order of color components is essential for further usage by OpenGL
	211	//=======================================================================
	212	void AIS_Triangulation::SetColors(const Handle(TColStd_HArray1OfInteger)& aColor)
	213	{
	214	myFlagColor = 1;
	215	myColor = aColor;
	216	}
	217
	218	//=======================================================================
	219	//function : GetColor
	220	//purpose : Get the color for each node.
	221	// Each 32-bit color is Alpha << 24 + Blue << 16 + Green << 8 + Red
	222	// Order of color components is essential for further usage by OpenGL
	223	//=======================================================================
	224
	225	Handle(TColStd_HArray1OfInteger) AIS_Triangulation::GetColors() const
	226	{
	227	return myColor;
	228	}
	229
	230
	231	//=======================================================================
	232	//function : SetTriangulation
7379f442	233	//purpose :
7fd59977	234	//=======================================================================
	235	void AIS_Triangulation::SetTriangulation(const Handle(Poly_Triangulation)& aTriangulation)
	236	{
	237	myTriangulation = aTriangulation;
	238	}
	239
	240	//=======================================================================
	241	//function : GetTriangulation
7379f442	242	//purpose :
7fd59977	243	//=======================================================================
	244	Handle(Poly_Triangulation) AIS_Triangulation::GetTriangulation() const{
	245	return myTriangulation;
	246	}
	247
	248	//=======================================================================
	249	//function : AttenuateColor
7379f442	250	//purpose :
7fd59977	251	//=======================================================================
dcc17419	252	Graphic3d_Vec4ub AIS_Triangulation::attenuateColor (const Standard_Integer theColor,
dcc17419	253	const Standard_Real theComposition)
7fd59977	254	{
7379f442	255	const Standard_Byte* anRgbx = reinterpret_cast<const Standard_Byte*> (&theColor);
7fd59977	256
dcc17419	257	// If IsTranparent() is false alpha value will be ignored anyway.
	258	Standard_Byte anAlpha = IsTransparent() ? static_cast<Standard_Byte> (255.0 - myDrawer->ShadingAspect()->Aspect()->FrontMaterial().Transparency() * 255.0)
	259	: 255;
7fd59977	260
7379f442	261	return Graphic3d_Vec4ub ((Standard_Byte)(theComposition * anRgbx[0]),
	262	(Standard_Byte)(theComposition * anRgbx[1]),
	263	(Standard_Byte)(theComposition * anRgbx[2]),
dcc17419	264	anAlpha);
7fd59977	265	}