///////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2002-2016, Open Design Alliance (the "Alliance").
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// All rights reserved.
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//
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// This software and its documentation and related materials are owned by
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// the Alliance. The software may only be incorporated into application
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// programs owned by members of the Alliance, subject to a signed
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// Membership Agreement and Supplemental Software License Agreement with the
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// Alliance. The structure and organization of this software are the valuable
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// trade secrets of the Alliance and its suppliers. The software is also
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// protected by copyright law and international treaty provisions. Application
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// programs incorporating this software must include the following statement
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// with their copyright notices:
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//
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// This application incorporates Teigha(R) software pursuant to a license
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// agreement with Open Design Alliance.
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// Teigha(R) Copyright (C) 2002-2016 by Open Design Alliance.
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// All rights reserved.
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//
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// By use of this software, its documentation or related materials, you
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// acknowledge and accept the above terms.
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///////////////////////////////////////////////////////////////////////////////
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// GiBaseVectorizer.h: interface for the OdGiBaseVectorizer class.
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//
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//////////////////////////////////////////////////////////////////////
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#ifndef _ODGITRANSFORMED_INCLUDED_
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#define _ODGITRANSFORMED_INCLUDED_
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#include "Gi/GiBaseVectorizer.h"
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#include "OdStack.h"
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#include "TD_PackPush.h"
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/** \details
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This class is an implementation of transformation stack.
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Library: TD_Gi
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<group OdGi_Classes>
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*/
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template <class T> class OdGiTransformed : public T
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{
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struct Transforms
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{
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Transforms() : bWorldToModelValid(false) {}
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OdGeMatrix3d xModelToWorld;
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mutable OdGeMatrix3d xWorldToModel;
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mutable bool bWorldToModelValid;
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};
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OdStack<Transforms> m_TransformStack;
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public:
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void pushModelTransform(const OdGeMatrix3d& xMat)
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{
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const Transforms* pPrev = m_TransformStack.top();
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Transforms* pNew = m_TransformStack.push();
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if(pPrev)
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{
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pNew->xModelToWorld.setToProduct(pPrev->xModelToWorld, xMat);
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}
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else
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{
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pNew->xModelToWorld = xMat;
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}
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}
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void pushModelTransform(const OdGeVector3d& vNormal)
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{
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pushModelTransform(OdGeMatrix3d::planeToWorld(vNormal));
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}
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void popModelTransform()
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{
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m_TransformStack.pop();
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}
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OdGeMatrix3d getModelToWorldTransform() const
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{
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if(m_TransformStack.top())
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return m_TransformStack.top()->xModelToWorld;
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return OdGeMatrix3d::kIdentity;
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}
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OdGeMatrix3d getWorldToModelTransform() const
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{
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const Transforms* pTop = m_TransformStack.top();
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if(pTop)
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{
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if(!pTop->bWorldToModelValid)
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{
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pTop->xWorldToModel = pTop->xModelToWorld.inverse();
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pTop->bWorldToModelValid = true;
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}
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return pTop->xWorldToModel;
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}
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return OdGeMatrix3d::kIdentity;
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}
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};
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#include "TD_PackPop.h"
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#endif // #ifndef _ODGITRANSFORMED_INCLUDED_
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