GiSectionGeometryOutput.h

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// Copyright (C) 2002-2017, Open Design Alliance (the "Alliance"). 
// All rights reserved. 
// 
// This software and its documentation and related materials are owned by 
// the Alliance. The software may only be incorporated into application 
// programs owned by members of the Alliance, subject to a signed 
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// trade secrets of the Alliance and its suppliers. The software is also 
// protected by copyright law and international treaty provisions. Application  
// programs incorporating this software must include the following statement 
// with their copyright notices:
//   
//   This application incorporates Teigha(R) software pursuant to a license 
//   agreement with Open Design Alliance.
//   Teigha(R) Copyright (C) 2002-2017 by Open Design Alliance. 
//   All rights reserved.
//
// By use of this software, its documentation or related materials, you 
// acknowledge and accept the above terms.
 
#ifndef __ODGISECTIONGEOMETRYOUTPUT_H__
#define __ODGISECTIONGEOMETRYOUTPUT_H__
 
#include "Gi/GiEmptyGeometry.h"
#include "Gi/GiDummyGeometry.h"
#include "RxObjectImpl.h"
 
#include "TD_PackPush.h"
 
class ODGI_EXPORT OdGiSectionGeometryOutput : public OdRxObject, public OdGiEmptyGeometry
{
  public:
    struct ODGI_EXPORT SectionGeometryOutputInterface
    {
      virtual OdGiConveyorGeometry &destinationGeometry() = 0;
      virtual OdGiConveyorContext &conveyorContext() = 0;
    };
  protected:
    enum Flags
    {
      kOutputClosedPrimitives      = 1,
      kOutputOpenedPrimitives      = 2,
      kClosedPrimitivesAsPolylines = 4,
      kToleranceOverrideEnabled    = 8
    };
  protected:
    SectionGeometryOutputInterface *m_pIface;        // Section geometry interface.
    OdUInt32                        m_flags;         // Section geometry output flags.
    OdUInt32                        m_overrideFlags; // Traits overrides flags
    OdGiSubEntityTraitsData         m_overrides;     // Traits overrides
    OdGiSubEntityTraitsData         m_traits;        // Actual traits storage
    double                          m_tolOverride;   // Section tolerance override.
    OdGePoint3dArray                m_tmpPoints;     // Temporary vertexes array
  public:
    OdGiSectionGeometryOutput() : m_pIface(NULL), m_flags(kOutputClosedPrimitives), m_overrideFlags(0), m_tolOverride(1.e-10) {}
 
    static OdSmartPtr<OdGiSectionGeometryOutput> createObject() { return OdRxObjectImpl<OdGiSectionGeometryOutput>::createObject(); }
 
    SectionGeometryOutputInterface &getInterface() { return *m_pIface; }
    void setInterface(SectionGeometryOutputInterface *pInterface) { m_pIface = pInterface; }
 
    bool isClosedSectionsOutputEnabled() const { return GETBIT(m_flags, kOutputClosedPrimitives); }
    void enableClosedSectionsOutput(bool bSet) { SETBIT(m_flags, kOutputClosedPrimitives, bSet); }
 
    bool isOpenedSectionsOutputEnabled() const { return GETBIT(m_flags, kOutputOpenedPrimitives); }
    void enableOpenedSectionsOutput(bool bSet) { SETBIT(m_flags, kOutputOpenedPrimitives, bSet); }
 
    bool isOutputOfClosedSectionsAsPolylinesEnabled() const { return GETBIT(m_flags, kClosedPrimitivesAsPolylines); }
    void enableOutputOfClosedSectionsAsPolylines(bool bSet) { SETBIT(m_flags, kClosedPrimitivesAsPolylines, bSet); }
 
    bool isSectionToleranceOverrideEnabled() const { return GETBIT(m_flags, kToleranceOverrideEnabled); }
 
    double sectionToleranceOverride() const { return m_tolOverride; }
 
    void setSectionToleranceOverride(double tolOverride) { SETBIT_1(m_flags, kToleranceOverrideEnabled); m_tolOverride = tolOverride; }
 
    void resetSectionToleranceOverride() { SETBIT_0(m_flags, kToleranceOverrideEnabled); }
 
    void setTraitsOverrideFlags(OdUInt32 nFlags)
    {
      m_overrideFlags = nFlags;
    }
    OdUInt32 traitsOverrideFlags() const
    {
      return m_overrideFlags;
    }
 
    void setTraitsOverrides(const OdGiSubEntityTraitsData &pData)
    {
      m_overrides = pData;
    }
    OdGiSubEntityTraitsData &traitsOverrides()
    {
      return m_overrides;
    }
    const OdGiSubEntityTraitsData &traitsOverrides() const
    {
      return m_overrides;
    }
 
    virtual void setupTraits(OdGiConveyorContext &context)
    {
      if (m_overrideFlags)
      {
        // Copy traits settings from current state
        OdGiSubEntityTraitsToData dataAdaptor(m_traits);
        OdGiSubEntityTraitsToData::copyTraits(context.subEntityTraits(), dataAdaptor, m_overrideFlags);
        // Setup traits overrides
        dataAdaptor.setTraits(m_overrides);
        OdGiSubEntityTraitsToData::copyTraits(dataAdaptor, context.subEntityTraits(), m_overrideFlags);
        context.onTraitsModified();
      }
    }
 
    virtual void releaseTraits(OdGiConveyorContext &context)
    {
      if (m_overrideFlags)
      {
        // Copy modified traits back to current state
        OdGiSubEntityTraitsToData dataAdaptor(m_traits);
        OdGiSubEntityTraitsToData::copyTraits(dataAdaptor, context.subEntityTraits(), m_overrideFlags);
        //context.onTraitsModified(); // Don't need since we completed with section geometry
      }
    }
 
    void polylineProc(OdInt32 numPoints, const OdGePoint3d* vertexList, const OdGeVector3d* pNormal = 0,
                      const OdGeVector3d* pExtrusion = 0, OdGsMarker baseSubEntMarker = -1)
    {
      setupTraits(getInterface().conveyorContext());
      getInterface().destinationGeometry().polylineProc(numPoints, vertexList, pNormal, pExtrusion, baseSubEntMarker);
      releaseTraits(getInterface().conveyorContext());
    }
 
    void shellProc(OdInt32 numVertices, const OdGePoint3d* vertexList, OdInt32 faceListSize, const OdInt32* faceList,
                   const OdGiEdgeData* pEdgeData = 0, const OdGiFaceData* pFaceData = 0, const OdGiVertexData* pVertexData = 0)
    {
      setupTraits(getInterface().conveyorContext());
      if (!isOutputOfClosedSectionsAsPolylinesEnabled())
        getInterface().destinationGeometry().shellProc(numVertices, vertexList, faceListSize, faceList, pEdgeData, pFaceData, pVertexData);
      else
        shellProcAsPolylineProc(numVertices, vertexList, faceListSize, faceList, pEdgeData, pFaceData, pVertexData);
      releaseTraits(getInterface().conveyorContext());
    }
  protected:
    void shellProcAsPolylineProc(OdInt32 /*numVertices*/, const OdGePoint3d* vertexList, OdInt32 faceListSize, const OdInt32* faceList,
                                 const OdGiEdgeData* /*pEdgeData*/, const OdGiFaceData* pFaceData, const OdGiVertexData* /*pVertexData*/)
    {
      OdInt32 nFace = 0, nFaceList = 0;
      OdGeVector3d extrusion;
      const bool bExtrusion = OdNonZero(getInterface().conveyorContext().subEntityTraits().thickness());
      while (nFaceList < faceListSize)
      {
        const OdInt32 numVerts = Od_abs(faceList[nFaceList++]);
        const OdGeVector3d *pNormal = (pFaceData && pFaceData->normals()) ? (pFaceData->normals() + nFace) : NULL;
        if (pNormal && bExtrusion)
          extrusion = *pNormal * getInterface().conveyorContext().subEntityTraits().thickness();
        m_tmpPoints.resize(numVerts + 1);
        OdGePoint3d *tmpPoints = m_tmpPoints.asArrayPtr();
        for (OdInt32 nVert = 0; nVert < numVerts; nVert++)
          tmpPoints[nVert] = vertexList[faceList[nFaceList++]];
        tmpPoints[numVerts] = tmpPoints[0];
        getInterface().destinationGeometry().polylineProc(numVerts + 1, tmpPoints, pNormal, (pNormal && bExtrusion) ? &extrusion : NULL);
        nFace++;
      }
    }
};
 
typedef OdSmartPtr<OdGiSectionGeometryOutput> OdGiSectionGeometryOutputPtr;
 
#include "TD_PackPop.h"
 
#endif //#ifndef __ODGISECTIONGEOMETRYOUTPUT_H__