include/opencascade/MeshVS_MeshPrsBuilder.hxx

0001 // Created on: 2003-10-10
0002 // Created by: Alexander SOLOVYOV
0003 // Copyright (c) 2003-2014 OPEN CASCADE SAS
0004 //
0005 // This file is part of Open CASCADE Technology software library.
0006 //
0007 // This library is free software; you can redistribute it and/or modify it under
0008 // the terms of the GNU Lesser General Public License version 2.1 as published
0009 // by the Free Software Foundation, with special exception defined in the file
0010 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0011 // distribution for complete text of the license and disclaimer of any warranty.
0012 //
0013 // Alternatively, this file may be used under the terms of Open CASCADE
0014 // commercial license or contractual agreement.
0015
0016 #ifndef _MeshVS_MeshPrsBuilder_HeaderFile
0017 #define _MeshVS_MeshPrsBuilder_HeaderFile
0018
0019 #include <MeshVS_PrsBuilder.hxx>
0020 #include <MeshVS_DisplayModeFlags.hxx>
0021 #include <MeshVS_BuilderPriority.hxx>
0022 #include <TColStd_PackedMapOfInteger.hxx>
0023 #include <TColStd_Array1OfReal.hxx>
0024 #include <MeshVS_HArray1OfSequenceOfInteger.hxx>
0025
0026 class MeshVS_Mesh;
0027 class MeshVS_DataSource;
0028 class Graphic3d_ArrayOfSegments;
0029 class Graphic3d_ArrayOfTriangles;
0030 class Graphic3d_ArrayOfPrimitives;
0031 class Graphic3d_AspectFillArea3d;
0032 class Graphic3d_AspectLine3d;
0033
0034 DEFINE_STANDARD_HANDLE(MeshVS_MeshPrsBuilder, MeshVS_PrsBuilder)
0035
0036 //! This class provides methods to compute base mesh presentation
0037 class MeshVS_MeshPrsBuilder : public MeshVS_PrsBuilder
0038 {
0039
0040 public:
0041
0042   //! Creates builder with certain display mode flags, data source, ID and priority
0043   Standard_EXPORT MeshVS_MeshPrsBuilder(const Handle(MeshVS_Mesh)& Parent, const MeshVS_DisplayModeFlags& Flags = MeshVS_DMF_OCCMask, const Handle(MeshVS_DataSource)& DS = 0, const Standard_Integer Id = -1, const MeshVS_BuilderPriority& Priority = MeshVS_BP_Mesh);
0044
0045   //! Builds base mesh presentation by calling the methods below
0046   Standard_EXPORT virtual void Build (const Handle(Prs3d_Presentation)& Prs, const TColStd_PackedMapOfInteger& IDs, TColStd_PackedMapOfInteger& IDsToExclude, const Standard_Boolean IsElement, const Standard_Integer DisplayMode) const Standard_OVERRIDE;
0047
0048   //! Builds nodes presentation
0049   Standard_EXPORT virtual void BuildNodes (const Handle(Prs3d_Presentation)& Prs, const TColStd_PackedMapOfInteger& IDs, TColStd_PackedMapOfInteger& IDsToExclude, const Standard_Integer DisplayMode) const;
0050
0051   //! Builds elements presentation
0052   Standard_EXPORT virtual void BuildElements (const Handle(Prs3d_Presentation)& Prs, const TColStd_PackedMapOfInteger& IDs, TColStd_PackedMapOfInteger& IDsToExclude, const Standard_Integer DisplayMode) const;
0053
0054   //! Builds presentation of hilighted entity
0055   Standard_EXPORT virtual void BuildHilightPrs (const Handle(Prs3d_Presentation)& Prs, const TColStd_PackedMapOfInteger& IDs, const Standard_Boolean IsElement) const;
0056
0057   //! Add to array polygons or polylines representing volume
0058   Standard_EXPORT static void AddVolumePrs (const Handle(MeshVS_HArray1OfSequenceOfInteger)& Topo, const TColStd_Array1OfReal& Nodes, const Standard_Integer NbNodes, const Handle(Graphic3d_ArrayOfPrimitives)& Array, const Standard_Boolean IsReflected, const Standard_Boolean IsShrinked, const Standard_Boolean IsSelect, const Standard_Real ShrinkCoef);
0059
0060   //! Calculate how many polygons or polylines are necessary to draw passed topology
0061   Standard_EXPORT static void HowManyPrimitives (const Handle(MeshVS_HArray1OfSequenceOfInteger)& Topo, const Standard_Boolean AsPolygons, const Standard_Boolean IsSelect, const Standard_Integer NbNodes, Standard_Integer& Vertices, Standard_Integer& Bounds);
0062
0063   DEFINE_STANDARD_RTTIEXT(MeshVS_MeshPrsBuilder,MeshVS_PrsBuilder)
0064
0065 protected:
0066
0067   //! Add to array of polylines some lines representing link
0068   Standard_EXPORT void AddLinkPrs (const TColStd_Array1OfReal& theCoords, const Handle(Graphic3d_ArrayOfSegments)& theLines, const Standard_Boolean IsShrinked, const Standard_Real ShrinkCoef) const;
0069
0070   //! Add to array of segments representing face's wire
0071   Standard_EXPORT void AddFaceWirePrs (const TColStd_Array1OfReal& theCoords, const Standard_Integer theNbNodes, const Handle(Graphic3d_ArrayOfSegments)& theLines, const Standard_Boolean theIsShrinked, const Standard_Real theShrinkingCoef) const;
0072
0073   //! Add to array of polygons a polygon representing face
0074   Standard_EXPORT void AddFaceSolidPrs (const Standard_Integer ID, const TColStd_Array1OfReal& theCoords, const Standard_Integer theNbNodes, const Standard_Integer theMaxNodes, const Handle(Graphic3d_ArrayOfTriangles)& theTriangles, const Standard_Boolean theIsReflected, const Standard_Boolean theIsShrinked, const Standard_Real theShrinkCoef, const Standard_Boolean theIsMeshSmoothShading) const;
0075
0076   //! Draw array of polygons and polylines in the certain order according to transparency
0077   Standard_EXPORT void DrawArrays (const Handle(Prs3d_Presentation)& Prs, const Handle(Graphic3d_ArrayOfPrimitives)& thePolygons, const Handle(Graphic3d_ArrayOfPrimitives)& theLines, const Handle(Graphic3d_ArrayOfPrimitives)& theLinkLines, const Handle(Graphic3d_ArrayOfPrimitives)& theVolumesInShad, const Standard_Boolean IsPolygonsEdgesOff, const Standard_Boolean IsSelected, const Handle(Graphic3d_AspectFillArea3d)& theFillAsp, const Handle(Graphic3d_AspectLine3d)& theLineAsp) const;
0078
0079   //! Default calculation of center of face or link. This method if useful for shrink mode presentation
0080   //! theCoords is array of nodes coordinates in the strict order X1, Y1, Z1, X2...
0081   //! NbNodes is number of nodes an element consist of
0082   //! xG, yG, zG are coordinates of center whose will be returned
0083   Standard_EXPORT static void CalculateCenter (const TColStd_Array1OfReal& theCoords, const Standard_Integer NbNodes, Standard_Real& xG, Standard_Real& yG, Standard_Real& zG);
0084
0085 };
0086
0087 #endif // _MeshVS_MeshPrsBuilder_HeaderFile