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0025463: Visualization - MeshVS_ElementalColorPrsBuilder produces inefficient structures for elements with unique colors

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Create array with per-node color assigned
This commit is contained in:
kgv
2014-11-11 19:34:15 +04:00
parent 82b4c24940
commit a6b058b0a9
1 changed files with 72 additions and 25 deletions
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67
src/MeshVS/MeshVS_ElementalColorPrsBuilder.cxx
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@@ -245,7 +245,58 @@ void MeshVS_ElementalColorPrsBuilder::Build ( const Handle(Prs3d_Presentation)&
}
// Draw elements with one color
for ( MeshVS_DataMapIteratorOfDataMapOfColorMapOfInteger aColIter ( aColorsOfElements ); aColIter.More();
Standard_Integer aNbFacePrimitives = 0;
for (it.Reset(); it.More(); it.Next())
{
if (!anElemColorMap->IsBound (it.Key()))
continue;
Standard_Integer aNbNodes = 0;
if (!aSource->GetGeom (it.Key(), Standard_True, aCoords, aNbNodes, aType))
continue;
if (aType == MeshVS_ET_Face)
{
aNbFacePrimitives += aNbNodes - 2; // add face triangles
}
}
Handle(Graphic3d_ArrayOfTriangles) aTriangles = new Graphic3d_ArrayOfTriangles (aNbFacePrimitives * 3, 0, Standard_False, Standard_True);
for (it.Reset(); it.More(); it.Next())
{
if (!anElemColorMap->IsBound (it.Key()))
continue;
Standard_Integer aNbNodes = 0;
if (!aSource->GetGeom (it.Key(), Standard_True, aCoords, aNbNodes, aType))
continue;
const Quantity_Color& aColor = anElemColorMap->Find (it.Key());
if (aType == MeshVS_ET_Face)
{
for (Standard_Integer aNodeIdx = 0; aNodeIdx < aNbNodes - 2; ++aNodeIdx)
{
for (Standard_Integer anIdx = 0; anIdx < 3; ++anIdx)
{
aTriangles->AddVertex (gp_Pnt (aCoords (3 * (anIdx == 0 ? 0 : (aNodeIdx + anIdx)) + 1),
aCoords (3 * (anIdx == 0 ? 0 : (aNodeIdx + anIdx)) + 2),
aCoords (3 * (anIdx == 0 ? 0 : (aNodeIdx + anIdx)) + 3)),
aColor);
}
}
}
}
Handle(Graphic3d_Group) aTrisGroup = Prs3d_Root::NewGroup (Prs);
Handle(Graphic3d_AspectFillArea3d) aFillAspect = new Graphic3d_AspectFillArea3d (Aspect_IS_SOLID, Quantity_NOC_WHITE, anEdgeColor,
anEdgeType, anEdgeWidth, aMaterial[0], aMaterial[1]);
aFillAspect->SetDistinguishOff();
aFillAspect->SetEdgeOff();
aTrisGroup->SetGroupPrimitivesAspect (aFillAspect);
aTrisGroup->AddPrimitiveArray (aTriangles);
/**for ( MeshVS_DataMapIteratorOfDataMapOfColorMapOfInteger aColIter ( aColorsOfElements ); aColIter.More();
aColIter.Next() )
{
Standard_Integer aSize = aColIter.Value().Extent();
@@ -254,12 +305,9 @@ void MeshVS_ElementalColorPrsBuilder::Build ( const Handle(Prs3d_Presentation)&
TColStd_PackedMapOfInteger aCustomElements;
Prs3d_Root::NewGroup ( Prs );
Handle ( Graphic3d_Group ) aGGroup = Prs3d_Root::CurrentGroup ( Prs );
Prs3d_Root::NewGroup ( Prs );
Handle ( Graphic3d_Group ) aLGroup = Prs3d_Root::CurrentGroup ( Prs );
Prs3d_Root::NewGroup ( Prs );
Handle ( Graphic3d_Group ) aSGroup = Prs3d_Root::CurrentGroup ( Prs );
Handle(Graphic3d_Group) aGGroup = Prs3d_Root::NewGroup (Prs);
Handle(Graphic3d_Group) aLGroup = Prs3d_Root::NewGroup (Prs);
Handle(Graphic3d_Group) aSGroup = Prs3d_Root::NewGroup (Prs);
Standard_Integer aNbFacePrimitives = 0;
Standard_Integer aNbVolmPrimitives = 0;
@@ -316,8 +364,7 @@ void MeshVS_ElementalColorPrsBuilder::Build ( const Handle(Prs3d_Presentation)&
// cell rendering (normal interpolation is not always applicable - flat shading),
// elemental coloring (color interpolation is impossible)
Handle (Graphic3d_ArrayOfTriangles) aFaceTriangles = new Graphic3d_ArrayOfTriangles (
(aNbFacePrimitives + aNbVolmPrimitives) * 3, 0, IsReflect );
Handle(Graphic3d_ArrayOfTriangles) aFaceTriangles = new Graphic3d_ArrayOfTriangles ((aNbFacePrimitives + aNbVolmPrimitives) * 3, 0, IsReflect);
Standard_Boolean IsPolyG = Standard_False;
Handle (Graphic3d_ArrayOfSegments) anEdgeSegments = new Graphic3d_ArrayOfSegments (aNbEdgePrimitives * 2);
@@ -640,7 +687,7 @@ void MeshVS_ElementalColorPrsBuilder::Build ( const Handle(Prs3d_Presentation)&
aGroup2->SetGroupPrimitivesAspect (anAsp);
aGroup3->AddPrimitiveArray (anEdgeSegments);
aGroup3->SetGroupPrimitivesAspect (anEdgeAspect);
}
}*/
}
//================================================================