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104 lines
3.5 KiB
C++
104 lines
3.5 KiB
C++
// Created on: 2009-12-10
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// Created by: Paul SUPRYATKIN
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// Copyright (c) 2009-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _AIS_Triangulation_HeaderFile
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#define _AIS_Triangulation_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <TColStd_HArray1OfInteger.hxx>
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#include <Standard_Integer.hxx>
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#include <AIS_InteractiveObject.hxx>
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#include <PrsMgr_PresentationManager3d.hxx>
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#include <SelectMgr_Selection.hxx>
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#include <Standard_Real.hxx>
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class Poly_Triangulation;
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class Prs3d_Presentation;
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class AIS_Triangulation;
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DEFINE_STANDARD_HANDLE(AIS_Triangulation, AIS_InteractiveObject)
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//! Interactive object that draws data from Poly_Triangulation, optionally with colors associated
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//! with each triangulation vertex. For maximum efficiency colors are represented as 32-bit integers
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//! instead of classic Quantity_Color values.
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//! Interactive selection of triangles and vertices is not yet implemented.
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class AIS_Triangulation : public AIS_InteractiveObject
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{
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public:
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//! Constructs the Triangulation display object
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Standard_EXPORT AIS_Triangulation(const Handle(Poly_Triangulation)& aTriangulation);
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//! Set the color for each node.
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//! Each 32-bit color is Alpha << 24 + Blue << 16 + Green << 8 + Red
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//! Order of color components is essential for further usage by OpenGL
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Standard_EXPORT void SetColors (const Handle(TColStd_HArray1OfInteger)& aColor);
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//! Get the color for each node.
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//! Each 32-bit color is Alpha << 24 + Blue << 16 + Green << 8 + Red
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Standard_EXPORT Handle(TColStd_HArray1OfInteger) GetColors() const;
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Standard_EXPORT void SetTriangulation (const Handle(Poly_Triangulation)& aTriangulation);
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//! Returns Poly_Triangulation .
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Standard_EXPORT Handle(Poly_Triangulation) GetTriangulation() const;
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DEFINE_STANDARD_RTTIEXT(AIS_Triangulation,AIS_InteractiveObject)
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protected:
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private:
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Standard_EXPORT virtual void Compute (const Handle(PrsMgr_PresentationManager3d)& aPresentationManager, const Handle(Prs3d_Presentation)& aPresentation, const Standard_Integer aMode = 0) Standard_OVERRIDE;
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Standard_EXPORT virtual void ComputeSelection (const Handle(SelectMgr_Selection)& aSelection, const Standard_Integer aMode) Standard_OVERRIDE;
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//! Attenuates 32-bit color by a given attenuation factor (0...1):
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//! aColor = Alpha << 24 + Blue << 16 + Green << 8 + Red
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//! All color components are multiplied by aComponent, the result is then packed again as 32-bit integer.
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//! Color attenuation is applied to the vertex colors in order to have correct visual result
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//! after glColorMaterial(GL_AMBIENT_AND_DIFFUSE). Without it, colors look unnatural and flat.
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Standard_EXPORT Standard_Integer AttenuateColor (const Standard_Integer aColor, const Standard_Real aComponent);
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Handle(Poly_Triangulation) myTriangulation;
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Handle(TColStd_HArray1OfInteger) myColor;
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Standard_Integer myFlagColor;
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Standard_Integer myNbNodes;
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Standard_Integer myNbTriangles;
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};
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#endif // _AIS_Triangulation_HeaderFile
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