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Viewing changes to plugins/qPCV/PCV/PCVContext.h

  • Committer: Package Import Robot
  • Author(s): Gürkan Myczko
  • Date: 2018-02-23 08:38:00 UTC
  • Revision ID: package-import@ubuntu.com-20180223083800-m96gby901656yjd1
Tags: upstream-2.9.1+git20180223
Import upstream version 2.9.1+git20180223

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plugins/qPCV/PCV/PCVContext.h
 
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//##########################################################################
 
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//#                                                                        #
 
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//#                                PCV                                     #
 
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//#                                                                        #
 
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//#  This program is free software; you can redistribute it and/or modify  #
 
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//#  it under the terms of the GNU Library General Public License as       #
 
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//#  published by the Free Software Foundation; version 2 or later of the License.  #
 
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//#                                                                        #
 
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//#  This program is distributed in the hope that it will be useful,       #
 
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//#  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
 
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//#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the          #
 
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//#  GNU General Public License for more details.                          #
 
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//#                                                                        #
 
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//#          COPYRIGHT: EDF R&D / TELECOM ParisTech (ENST-TSI)             #
 
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//#                                                                        #
 
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//##########################################################################
 
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#ifndef PCV_CONTEXT_HEADER
 
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#define PCV_CONTEXT_HEADER
 
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//CCLib
 
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#include <GenericCloud.h>
 
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#include <GenericMesh.h>
 
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//system
 
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#include <vector>
 
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class QGLPixelBuffer;
 
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//! PCV (Portion de Ciel Visible / Ambiant Illumination) OpenGL context
 
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/** Similar to Cignoni's ShadeVis
 
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**/
 
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class PCVContext
 
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{
 
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        public:
 
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                //! Default constructor
 
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                PCVContext();
 
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                //! Destructor
 
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                virtual ~PCVContext();
 
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                //! Initialization
 
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                /** \param W OpenGL render context width (pixels)
 
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                        \param H OpenGL render context height (pixels)
 
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                        \param cloud associated cloud (or mesh vertices)
 
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                        \param mesh associated mesh (if any)
 
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                        \param closedMesh whether mesh is closed (faster) or not (need more memory)
 
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                        \return initialization success
 
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                **/
 
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                bool init(      unsigned W,
 
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                                        unsigned H,
 
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                                        CCLib::GenericCloud* cloud,
 
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                                        CCLib::GenericMesh* mesh = 0,
 
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                                        bool closedMesh = true);
 
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                //! Set the viewing directions
 
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                void setViewDirection(const CCVector3& V);
 
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                //! Increments the visibility counter for points viewed in the current pass (see setViewDirection)
 
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                /** \param visibilityCount per-vertex visibility count (same size as the number of vertices)
 
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                        \return number of vertices seen during this pass
 
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                **/
 
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                int GLAccumPixel(std::vector<int>& visibilityCount);
 
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        protected:
 
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                void glInit();
 
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                void drawEntity();
 
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                void associateToEntity(CCLib::GenericCloud* cloud, CCLib::GenericMesh* mesh = 0);
 
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                //! Displayed entity (cloud or mesh vertices)
 
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                CCLib::GenericCloud* m_vertices;
 
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                //! Displayed entity (mesh - optional)
 
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                CCLib::GenericMesh* m_mesh;
 
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                //zoom courant
 
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                PointCoordinateType m_zoom;
 
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                //translation vers le centre de l'entitee a afficher
 
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                CCVector3 m_viewCenter;
 
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                //associated pixel buffer
 
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                QGLPixelBuffer* m_pixBuffer;
 
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                //! Pixel buffer width (pixels)
 
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                unsigned m_width;
 
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                //! Pixel buffer height (pixels)
 
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                unsigned m_height;
 
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                //! Model view matrix size (OpenGL)
 
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                /** \warning Never pass a 'constant initializer' by reference
 
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                **/
 
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                static const unsigned OPENGL_MATRIX_SIZE = 16;
 
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                //! Current model view matrix
 
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                float m_viewMat[OPENGL_MATRIX_SIZE];
 
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                //! Depth buffer
 
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                float* m_snapZ;
 
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                //! Color buffer
 
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                unsigned char* m_snapC;
 
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                //! Whether displayed mesh is closed or not
 
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                bool m_meshIsClosed;
 
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};
 
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#endif