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[occt.git] / src / VrmlData / VrmlData_IndexedFaceSet.hxx

// Created on: 2006-05-26
// Created by: Alexander GRIGORIEV
// Copyright (c) 2006-2012 OPEN CASCADE SAS
//
// The content of this file is subject to the Open CASCADE Technology Public
// License Version 6.5 (the "License"). You may not use the content of this file
// except in compliance with the License. Please obtain a copy of the License
// at http://www.opencascade.org and read it completely before using this file.
//
// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
//
// The Original Code and all software distributed under the License is
// distributed on an "AS IS" basis, without warranty of any kind, and the
// Initial Developer hereby disclaims all such warranties, including without
// limitation, any warranties of merchantability, fitness for a particular
// purpose or non-infringement. Please see the License for the specific terms
// and conditions governing the rights and limitations under the License.



#ifndef VrmlData_IndexedFaceSet_HeaderFile
#define VrmlData_IndexedFaceSet_HeaderFile

#include <VrmlData_Faceted.hxx>
#include <VrmlData_Coordinate.hxx>
#include <VrmlData_Normal.hxx>
#include <VrmlData_Color.hxx>
#include <VrmlData_TextureCoordinate.hxx>
#include <gp_XYZ.hxx>
#include <Quantity_Color.hxx>

/**
 *  Implementation of IndexedFaceSet node
 */
class VrmlData_IndexedFaceSet : public VrmlData_Faceted 
{
 public:
  // ---------- PUBLIC METHODS ----------

  /**
   * Empty constructor
   */
  inline VrmlData_IndexedFaceSet ()
    : myArrPolygons     (0L),
      myArrNormalInd    (0L),
      myArrColorInd     (0L),
      myArrTextureInd   (0L),
      myNbPolygons      (0),
      myNbNormals       (0),
      myNbColors        (0),
      myNbTextures      (0),
      myNormalPerVertex (Standard_True),
      myColorPerVertex  (Standard_True)
  {}

  /**
   * Constructor
   */
  inline VrmlData_IndexedFaceSet (const VrmlData_Scene&  theScene,
                                  const char             * theName,
                                  const Standard_Boolean isCCW   =Standard_True,
                                  const Standard_Boolean isSolid =Standard_True,
                                  const Standard_Boolean isConvex=Standard_True,
                                  const Standard_Real    theCreaseAngle = 0.)
    : VrmlData_Faceted (theScene, theName, isCCW, isSolid, isConvex,
                        theCreaseAngle),
      myArrPolygons     (0L),
      myArrNormalInd    (0L),
      myArrColorInd     (0L),
      myArrTextureInd   (0L),
      myNbPolygons      (0),
      myNbNormals       (0),
      myNbColors        (0),
      myNbTextures      (0),
      myNormalPerVertex (Standard_True),
      myColorPerVertex  (Standard_True)
  {}

  /**
   * Query the Normals.
   */
  inline const Handle(VrmlData_Normal)&
                Normals         () const        { return myNormals; }

  /**
   * Query the Colors.
   */
  inline const Handle(VrmlData_Color)&
                Colors          () const        { return myColors; }

  /**
   * Query the Texture Coordinates.
   */
  inline const Handle(VrmlData_TextureCoordinate)&
                TextureCoords   () const      { return myTxCoords; }

  // ========================================================================
  // =========================== TRIANGULATION GRID =========================
  /**
   * Query the Coordinates.
   */
  inline const Handle(VrmlData_Coordinate)&
                Coordinates     () const        { return myCoords; }

  /**
   * Query the array of polygons
   */
  inline size_t Polygons        (const Standard_Integer**& arrPolygons) const
  { arrPolygons = myArrPolygons; return myNbPolygons; }

  /**
   * Query one polygon.
   * @param iFace
   *   rank of the polygon [0 .. N-1]
   * @param outIndice
   *   <tt>[out]</tt> array of vertex indice
   * @return
   *   number of vertice in the polygon - the dimension of outIndice array
   */
  inline Standard_Integer
                Polygon         (const Standard_Integer         iFace,
                                 const Standard_Integer *&      outIndice)
  { return * (outIndice = myArrPolygons[iFace])++; }

  /**
   * Set the nodes
   */
  inline void   SetCoordinates  (const Handle(VrmlData_Coordinate)& theCoord)
  { myCoords = theCoord; }

  /**
   * Set the polygons
   */
  inline void   SetPolygons     (const Standard_Size       nPolygons,
                                 const Standard_Integer ** thePolygons)
  { myNbPolygons = nPolygons; myArrPolygons = thePolygons; }

  // ========================================================================
  // ================================ NORMALS ===============================

  /**
   * Query the array of normal indice
   * @param arrNormalInd
   *   <tt>[out]</tt> array of normalIndex as it is described in VRML2.0 spec
   * @return
   *   Number of integers in the array arrNormalInd.
   */
  inline size_t ArrayNormalInd  (const Standard_Integer**& arrNormalInd) const
  { arrNormalInd = myArrNormalInd; return myNbNormals; }

  /**
   * Query normals indice for one face. This method should be called after
   * checking myArrNormalInd != NULL, otherwise exception will be thrown.
   * @param iFace
   *   rank of the face [0 .. N-1]
   * @param outIndice
   *   <tt>[out]</tt> array of normals indice
   * @return
   *   number of indice in the array - the dimension of outIndice array
   */
  inline Standard_Integer
                IndiceNormals   (const Standard_Integer         iFace,
                                 const Standard_Integer *&      outIndice)
  { return * (outIndice = myArrNormalInd[iFace])++; }

  /**
   * Query a normal for one node in the given element. The normal is
   * interpreted according to fields myNormals, myArrNormalInd,
   * myNormalPerVertex, as defined in VRML 2.0.
   * @param iFace
   *   rank of the polygon [0 .. N-1]
   * @param iVertex
   *   rank of the vertex in the polygon [0 .. M-1].  This parameter is ignored
   *   if (myNormalPerVertex == False)
   * @return
   *   Normal vector; if the normal is indefinite then returns (0., 0., 0.)
   */
  Standard_EXPORT gp_XYZ
                GetNormal       (const Standard_Integer         iFace,
                                 const Standard_Integer         iVertex);

  /**
   * Set the normals array of indice
   */
  inline void   SetNormalInd    (const Standard_Size       nIndice,
                                 const Standard_Integer ** theIndice)
  { myNbNormals = nIndice; myArrNormalInd = theIndice; }

  /**
   * Set the normals node
   */
  inline void   SetNormals      (const Handle(VrmlData_Normal)& theNormals)
  { myNormals = theNormals; }

  /**
   * Set the boolean value "normalPerVertex"
   */
  inline void   SetNormalPerVertex (const Standard_Boolean isNormalPerVertex)
  { myNormalPerVertex = isNormalPerVertex; }

  // ========================================================================
  // ================================ COLORS ================================

  /**
   * Query the array of color indice
   * @param arrColorInd
   *   <tt>[out]</tt> array of colorIndex as it is described in VRML2.0 spec
   * @return
   *   Number of integers in the array arrColorInd.
   */
  inline size_t ArrayColorInd   (const Standard_Integer**& arrColorInd) const
  { arrColorInd = myArrColorInd; return myNbColors; }

  /**
   * Query a color for one node in the given element. The color is
   * interpreted according to fields myColors, myArrColorInd,
   * myColorPerVertex, as defined in VRML 2.0.
   * @param iFace
   *   rank of the polygon [0 .. N-1]
   * @param iVertex
   *   rank of the vertex in the polygon [0 .. M-1]. This parameter is ignored
   *   if (myColorPerVertex == False)
   * @return
   *   Color value (RGB); if the color is indefinite then returns (0., 0., 0.)
   */
  Standard_EXPORT Quantity_Color
                GetColor        (const Standard_Integer         iFace,
                                 const Standard_Integer         iVertex);

  /**
   * Set the colors array of indice
   */
  inline void   SetColorInd     (const Standard_Size       nIndice,
                                 const Standard_Integer ** theIndice)
  { myNbColors = nIndice; myArrColorInd = theIndice; }

  /**
   * Set the Color node
   */
  inline void   SetColors       (const Handle(VrmlData_Color)& theColors)
  { myColors = theColors; }

  /**
   * Set the boolean value "colorPerVertex"
   */
  inline void   SetColorPerVertex (const Standard_Boolean isColorPerVertex)
  { myColorPerVertex = isColorPerVertex; }

  // ========================================================================
  // ========================== TEXTURE COIRDINATES =========================

  /**
   * Query the array of texture coordinate indice
   * @param arrTextureCoordInd
   *   <tt>[out]</tt> array of texCoordIndex as it is described in VRML2.0 spec
   * @return
   *   Number of integers in the array texCoordIndex.
   */
  inline size_t ArrayTextureCoordInd
                            (const Standard_Integer**& arrTextureCoordInd) const
  { arrTextureCoordInd = myArrTextureInd; return myNbTextures; }

  /**
   * Set the TexCoordiante array of indice
   */
  inline void   SetTextureCoordInd (const Standard_Size       nIndice,
                                    const Standard_Integer ** theIndice)
  { myNbTextures = nIndice; myArrTextureInd = theIndice; }

  /**
   * Set the Texture Coordinate node
   */
  inline void   SetTextureCoords(const Handle(VrmlData_TextureCoordinate)& tc)
  { myTxCoords = tc; }

  /**
   * Query the shape. This method checks the flag myIsModified; if True it
   * should rebuild the shape presentation.
   */
  Standard_EXPORT virtual const Handle(TopoDS_TShape)&  TShape ();

  /**
   * Create a copy of this node.
   * If the parameter is null, a new copied node is created. Otherwise new node
   * is not created, but rather the given one is modified.
   */
  Standard_EXPORT virtual Handle(VrmlData_Node)
                Clone              (const Handle(VrmlData_Node)& theOther)const;

  /**
   * Read the Node from input stream.
   */
  Standard_EXPORT virtual VrmlData_ErrorStatus
                Read               (VrmlData_InBuffer& theBuffer);

  /**
   * Write the Node to output stream.
   */
  Standard_EXPORT virtual VrmlData_ErrorStatus
                Write              (const char * thePrefix) const;

  /**
   * Returns True if the node is default, so that it should not be written.
   */
  Standard_EXPORT virtual Standard_Boolean
                IsDefault          () const;

 protected:
  // ---------- PROTECTED METHODS ----------

//   /**
//    * If the normals are not defined, here we compute them from the polygons.
//    * @param theArray
//    *   Array of float values having length:<ul>
//    *   <li>if myNormalPerVertex==TRUE : 3 * myCoords->Length()</li>
//    *   <li>if myNormalPerVertex==FALSE: 9 * number_of_triangles </li>
//    *   </ul>
//    */
//   Standard_EXPORT void
//                 computeNormals     (Standard_ShortReal * theArray);

 private:
  // ---------- PRIVATE FIELDS ----------
  Handle(VrmlData_Coordinate)           myCoords;
  Handle(VrmlData_Normal)               myNormals;
  Handle(VrmlData_Color)                myColors;
  Handle(VrmlData_TextureCoordinate)    myTxCoords;
  const Standard_Integer                ** myArrPolygons;
  const Standard_Integer                ** myArrNormalInd;
  const Standard_Integer                ** myArrColorInd;
  const Standard_Integer                ** myArrTextureInd;
  Standard_Size                         myNbPolygons;
  Standard_Size                         myNbNormals;
  Standard_Size                         myNbColors;
  Standard_Size                         myNbTextures;
  Standard_Boolean                      myNormalPerVertex;
  Standard_Boolean                      myColorPerVertex;

 public:
// Declaration of CASCADE RTTI
DEFINE_STANDARD_RTTI (VrmlData_IndexedFaceSet)
};

// Definition of HANDLE object using Standard_DefineHandle.hxx
DEFINE_STANDARD_HANDLE (VrmlData_IndexedFaceSet, VrmlData_Faceted)


#endif