00001 /********************************************************************* 00002 * lescegra * 00003 * * 00004 * http://geeky.kicks-ass.org/projects/lescegra.html * 00005 * * 00006 * Copyright 2003 by Enno Cramer <uebergeek@web.de> * 00007 * * 00008 * This library is free software; you can redistribute it and/or * 00009 * modify it under the terms of the GNU Library General Public * 00010 * License as published by the Free Software Foundation; either * 00011 * version 2 of the License, or (at your option) any later version. * 00012 * * 00013 * This library is distributed in the hope that it will be useful, * 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00016 * Library General Public License for more details. * 00017 * * 00018 * You should have received a copy of the GNU Library General Public * 00019 * License along with this library; if not, write to the Free * 00020 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * 00021 *********************************************************************/ 00022 00023 #ifndef LSG_ORTHOCAM_H 00024 #define LSG_ORTHOCAM_H 1 00025 00026 /** 00027 * \file orthocam.h 00028 * \brief Orthogonal projection camera 00029 */ 00030 00031 #include <lescegra/sg/camera.h> 00032 00033 #include <lescegra/util/vertex.h> 00034 00035 /** 00036 * \brief Orthogonal projection 00037 * 00038 * A camera with an axes parallel view cube defind by minimal and maximal value 00039 * for each axis. 00040 */ 00041 typedef struct { 00042 LsgCamera super; 00043 Vertex min; 00044 Vertex max; 00045 } LsgOrthoCam; 00046 00047 /** 00048 * Allocate and initialize a new LsgOrthoCam. 00049 * @return A new LsgOrthoCam instance 00050 */ 00051 LsgOrthoCam* LsgOrthoCam_create(void); 00052 00053 /** 00054 * Constructor method for LsgOrthoCam. Initialize view cube to [-1, +1] in all 00055 * dimensions. 00056 * @param self The instance variable 00057 */ 00058 void LsgOrthoCam_init(LsgOrthoCam* self); 00059 00060 /** 00061 * Display a node as seen from this camera. 00062 * @param self The instance variable 00063 * @param frust The initial view frustum 00064 * @param node The node to display 00065 */ 00066 void LsgOrthoCam_display(LsgOrthoCam* self, LsgFrustum* frust, LsgNode* node); 00067 00068 /** 00069 * Destructor method for LsgOrthoCam. Reuse parent implementation. 00070 */ 00071 #define LsgOrthoCam_destroy(self) LsgCamera_destroy(&(self)->super) 00072 00073 #endif