diff options
Diffstat (limited to 'source/blender/freestyle/intern/view_map/SilhouetteGeomEngine.h')
-rw-r--r-- | source/blender/freestyle/intern/view_map/SilhouetteGeomEngine.h | 235 |
1 files changed, 124 insertions, 111 deletions
diff --git a/source/blender/freestyle/intern/view_map/SilhouetteGeomEngine.h b/source/blender/freestyle/intern/view_map/SilhouetteGeomEngine.h index 5bd89f8a162..d6ee159fe88 100644 --- a/source/blender/freestyle/intern/view_map/SilhouetteGeomEngine.h +++ b/source/blender/freestyle/intern/view_map/SilhouetteGeomEngine.h @@ -1,41 +1,46 @@ -// -// Filename : SilhouetteGeomEngine.h -// Author(s) : Stephane Grabli -// Purpose : Class to perform all geometric operations dedicated -// to silhouette. That, for example, implies that -// this geom engine has as member data the viewpoint, -// transformations, projections... -// Date of creation : 03/09/2002 -// -/////////////////////////////////////////////////////////////////////////////// - - -// -// Copyright (C) : Please refer to the COPYRIGHT file distributed -// with this source distribution. -// -// This program is free software; you can redistribute it and/or -// modify it under the terms of the GNU General Public License -// as published by the Free Software Foundation; either version 2 -// of the License, or (at your option) any later version. -// -// This program is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program; if not, write to the Free Software -// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -// -/////////////////////////////////////////////////////////////////////////////// - -#ifndef SILHOUETTEGEOMENGINE_H -# define SILHOUETTEGEOMENGINE_H - -# include <vector> -# include "../system/FreestyleConfig.h" -# include "../geometry/Geom.h" +/* + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2010 Blender Foundation. + * All rights reserved. + * + * The Original Code is: all of this file. + * + * Contributor(s): none yet. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +#ifndef __FREESTYLE_SILHOUETTE_GEOM_ENGINE_H__ +#define __FREESTYLE_SILHOUETTE_GEOM_ENGINE_H__ + +/** \file blender/freestyle/intern/view_map/SilhouetteGeomEngine.h + * \ingroup freestyle + * \brief Class to perform all geometric operations dedicated to silhouette. That, for example, implies that + * this geom engine has as member data the viewpoint, transformations, projections... + * \author Stephane Grabli + * \date 03/09/2002 + */ + +#include <vector> + +#include "../geometry/Geom.h" + +#include "../system/FreestyleConfig.h" using namespace Geometry; @@ -45,79 +50,87 @@ class FEdge; class LIB_VIEW_MAP_EXPORT SilhouetteGeomEngine { private: - static Vec3r _Viewpoint; // The viewpoint under which the silhouette has to be computed - static real _translation[3]; - static real _modelViewMatrix[4][4]; // the model view matrix (_modelViewMatrix[i][j] means element of line i and column j) - static real _projectionMatrix[4][4]; // the projection matrix (_projectionMatrix[i][j] means element of line i and column j) - static real _transform[4][4]; // the global transformation from world to screen (projection included) (_transform[i][j] means element of line i and column j) - static int _viewport[4]; // the viewport - static real _Focal; - - static real _znear; - static real _zfar; - - static real _glProjectionMatrix[4][4]; // GL style (column major) projection matrix - static real _glModelViewMatrix[4][4]; // GL style (column major) model view matrix - -static bool _isOrthographicProjection; - - - static SilhouetteGeomEngine *_pInstance; + // The viewpoint under which the silhouette has to be computed + static Vec3r _Viewpoint; + static real _translation[3]; + // the model view matrix (_modelViewMatrix[i][j] means element of line i and column j) + static real _modelViewMatrix[4][4]; + // the projection matrix (_projectionMatrix[i][j] means element of line i and column j) + static real _projectionMatrix[4][4]; + // the global transformation from world to screen (projection included) + // (_transform[i][j] means element of line i and column j) + static real _transform[4][4]; + // the viewport + static int _viewport[4]; + static real _Focal; + + static real _znear; + static real _zfar; + + // GL style (column major) projection matrix + static real _glProjectionMatrix[4][4]; + // GL style (column major) model view matrix + static real _glModelViewMatrix[4][4]; + + static bool _isOrthographicProjection; + + static SilhouetteGeomEngine *_pInstance; + public: - - /*! retrieves an instance on the singleton */ - static SilhouetteGeomEngine * getInstance() - { - if(0 == _pInstance) - { - _pInstance = new SilhouetteGeomEngine; - } - return _pInstance; - } - - /*! Sets the current viewpoint */ - static inline void setViewpoint(const Vec3r& ivp) {_Viewpoint = ivp;} - - /*! Sets the current transformation - * iModelViewMatrix - * The 4x4 model view matrix, in column major order (openGL like). - * iProjection matrix - * The 4x4 projection matrix, in column major order (openGL like). - * iViewport - * The viewport. 4 real array: origin.x, origin.y, width, length - * iFocal - * The focal length - */ - static void setTransform(const real iModelViewMatrix[4][4], const real iProjectionMatrix[4][4], const int iViewport[4], real iFocal) ; - - /*! Sets the current znear and zfar - */ - static void setFrustum(real iZNear, real iZFar) ; - - /* accessors */ - static void retrieveViewport(int viewport[4]); - - /*! Projects the silhouette in camera coordinates - * This method modifies the ioEdges passed as argument. - * ioVertices - * The vertices to project. It is modified during the - * operation. - */ - static void ProjectSilhouette(std::vector<SVertex*>& ioVertices); - static void ProjectSilhouette(SVertex* ioVertex); - - /*! transforms the parameter t defining a 2D intersection for edge fe in order to obtain - * the parameter giving the corresponding 3D intersection. - * Returns the 3D parameter - * fe - * The edge - * t - * The parameter for the 2D intersection. - */ - static real ImageToWorldParameter(FEdge *fe, real t); - - /*! From world to image */ - static Vec3r WorldToImage(const Vec3r& M); + /*! retrieves an instance on the singleton */ + static SilhouetteGeomEngine *getInstance() + { + if(0 == _pInstance) { + _pInstance = new SilhouetteGeomEngine; + } + return _pInstance; + } + + /*! Sets the current viewpoint */ + static inline void setViewpoint(const Vec3r& ivp) + { + _Viewpoint = ivp; + } + + /*! Sets the current transformation + * iModelViewMatrix + * The 4x4 model view matrix, in column major order (openGL like). + * iProjection matrix + * The 4x4 projection matrix, in column major order (openGL like). + * iViewport + * The viewport. 4 real array: origin.x, origin.y, width, length + * iFocal + * The focal length + */ + static void setTransform(const real iModelViewMatrix[4][4], const real iProjectionMatrix[4][4], + const int iViewport[4], real iFocal); + + /*! Sets the current znear and zfar */ + static void setFrustum(real iZNear, real iZFar); + + /* accessors */ + static void retrieveViewport(int viewport[4]); + + /*! Projects the silhouette in camera coordinates + * This method modifies the ioEdges passed as argument. + * ioVertices + * The vertices to project. It is modified during the operation. + */ + static void ProjectSilhouette(std::vector<SVertex*>& ioVertices); + static void ProjectSilhouette(SVertex *ioVertex); + + /*! transforms the parameter t defining a 2D intersection for edge fe in order to obtain + * the parameter giving the corresponding 3D intersection. + * Returns the 3D parameter + * fe + * The edge + * t + * The parameter for the 2D intersection. + */ + static real ImageToWorldParameter(FEdge *fe, real t); + + /*! From world to image */ + static Vec3r WorldToImage(const Vec3r& M); }; -#endif // SILHOUETTEGEOMENGINE_H +#endif // __FREESTYLE_SILHOUETTE_GEOM_ENGINE_H__ |