OpenMesh
OpenMesh/Apps/VDProgMesh/Synthesizer/VDPMSynthesizerViewerWidget.hh
00001 /*===========================================================================*\
00002  *                                                                           *
00003  *                               OpenMesh                                    *
00004  *      Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen      *
00005  *                           www.openmesh.org                                *
00006  *                                                                           *
00007  *---------------------------------------------------------------------------* 
00008  *  This file is part of OpenMesh.                                           *
00009  *                                                                           *
00010  *  OpenMesh is free software: you can redistribute it and/or modify         * 
00011  *  it under the terms of the GNU Lesser General Public License as           *
00012  *  published by the Free Software Foundation, either version 3 of           *
00013  *  the License, or (at your option) any later version with the              *
00014  *  following exceptions:                                                    *
00015  *                                                                           *
00016  *  If other files instantiate templates or use macros                       *
00017  *  or inline functions from this file, or you compile this file and         *
00018  *  link it with other files to produce an executable, this file does        *
00019  *  not by itself cause the resulting executable to be covered by the        *
00020  *  GNU Lesser General Public License. This exception does not however       *
00021  *  invalidate any other reasons why the executable file might be            *
00022  *  covered by the GNU Lesser General Public License.                        *
00023  *                                                                           *
00024  *  OpenMesh is distributed in the hope that it will be useful,              *
00025  *  but WITHOUT ANY WARRANTY; without even the implied warranty of           *
00026  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            *
00027  *  GNU Lesser General Public License for more details.                      *
00028  *                                                                           *
00029  *  You should have received a copy of the GNU LesserGeneral Public          *
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00032  *                                                                           *
00033 \*===========================================================================*/ 
00034 
00035 /*===========================================================================*\
00036  *                                                                           *             
00037  *   $Revision: 362 $                                                         *
00038  *   $Date: 2011-01-26 10:21:12 +0100 (Mi, 26 Jan 2011) $                   *
00039  *                                                                           *
00040 \*===========================================================================*/
00041 
00042 //=============================================================================
00043 //
00044 //  CLASS newClass
00045 //
00046 //=============================================================================
00047 
00048 
00049 #ifndef OPENMESH_VDPROGMESH_VDPMSYNTHESIZERVIEWERWIDGET_HH
00050 #define OPENMESH_VDPROGMESH_VDPMSYNTHESIZERVIEWERWIDGET_HH
00051 
00052 
00053 //== INCLUDES =================================================================
00054 
00055 #include <string>
00056 #include <QTimer>
00057 
00058 #include <OpenMesh/Core/IO/MeshIO.hh>
00059 #include <OpenMesh/Core/Mesh/TriMesh_ArrayKernelT.hh>
00060 #include <OpenMesh/Apps/QtViewer/MeshViewerWidgetT.hh>
00061 
00062 #include <OpenMesh/Tools/VDPM/MeshTraits.hh>
00063 #include <OpenMesh/Tools/VDPM/StreamingDef.hh>
00064 #include <OpenMesh/Tools/VDPM/ViewingParameters.hh>
00065 #include <OpenMesh/Tools/VDPM/VHierarchy.hh>
00066 #include <OpenMesh/Tools/VDPM/VFront.hh>
00067 
00068 
00069 //== FORWARDDECLARATIONS ======================================================
00070 
00071 
00072 //== NAMESPACES ===============================================================
00073 
00074 namespace OpenMesh {
00075 
00076 
00077 //== CLASS DEFINITION =========================================================
00078 
00079               
00089 typedef TriMesh_ArrayKernelT<VDPM::MeshTraits>  VDPMMesh;
00090 typedef MeshViewerWidgetT<VDPMMesh>             MeshViewerWidget;
00091 
00092 
00093   // using view dependent progressive mesh 
00094 
00095   using VDPM::Plane3d;
00096   using VDPM::VFront;
00097   using VDPM::VHierarchy;
00098   using VDPM::VHierarchyNode;
00099   using VDPM::VHierarchyNodeIndex;
00100   using VDPM::VHierarchyNodeHandle;
00101   using VDPM::VHierarchyNodeHandleContainer;
00102   using VDPM::ViewingParameters;
00103 
00104 
00105 //== CLASS DEFINITION =========================================================
00106 
00107 
00108 class VDPMSynthesizerViewerWidget : public MeshViewerWidget
00109 {
00110 public:
00111 
00112   typedef MeshViewerWidget Base;
00113 
00114 public:
00115 
00116   VDPMSynthesizerViewerWidget(QWidget* _parent=0, const char* _name=0)
00117     : MeshViewerWidget(_parent)
00118   {
00119     adaptive_mode_ = true;
00120   }
00121 
00122   ~VDPMSynthesizerViewerWidget()
00123   {
00124 
00125   }
00126 
00128   void open_vd_prog_mesh(const char* _filename);
00129 
00130 
00131 private:
00132 
00133   QString             qFilename_;
00134   VHierarchy          vhierarchy_;
00135   VFront              vfront_;
00136   ViewingParameters   viewing_parameters_;
00137   float               kappa_square_;
00138   bool                adaptive_mode_;
00139 
00140   unsigned int        n_base_vertices_;
00141   unsigned int        n_base_edges_;
00142   unsigned int        n_base_faces_;
00143   unsigned int        n_details_;
00144 
00145     
00146 private:
00147 
00148   bool outside_view_frustum(const OpenMesh::Vec3f &pos, float radius);
00149 
00150   bool oriented_away(float sin_square, 
00151                      float distance_square, 
00152                      float product_value);
00153 
00154   bool screen_space_error(float mue_square, 
00155                           float sigma_square, 
00156                           float distance_square, 
00157                           float product_value);
00158 
00159   void update_viewing_parameters();
00160 
00161   virtual void keyPressEvent(QKeyEvent* _event);
00162 
00163 protected:
00164 
00166   virtual void draw_scene(const std::string& _draw_mode);
00167 
00168 public:
00169 
00170   void adaptive_refinement();   
00171 
00172   bool qrefine(VHierarchyNodeHandle _node_handle);              
00173 
00174   void force_vsplit(VHierarchyNodeHandle _node_handle);
00175 
00176   bool ecol_legal(VHierarchyNodeHandle _parent_handle, 
00177                   VDPMMesh::HalfedgeHandle& v0v1);
00178 
00179   void get_active_cuts(VHierarchyNodeHandle _node_handle, 
00180                        VDPMMesh::VertexHandle &vl, VDPMMesh::VertexHandle &vr);
00181 
00182   void vsplit(VHierarchyNodeHandle _node_handle, 
00183               VDPMMesh::VertexHandle vl, VDPMMesh::VertexHandle vr);
00184 
00185   void ecol(VHierarchyNodeHandle _parent_handle, 
00186             const VDPMMesh::HalfedgeHandle& v0v1);
00187 
00188   void init_vfront();
00189  
00190 };
00191 
00192 
00193 //=============================================================================
00194 } // namespace OpenMesh
00195 //=============================================================================
00196 #endif // OPENMESHAPPS_VDPMSYNTHESIZERVIEWERWIDGET_HH defined
00197 //=============================================================================