Open Inventor Reference
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00001 /* 00002 * 00003 * Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved. 00004 * 00005 * This library is free software; you can redistribute it and/or 00006 * modify it under the terms of the GNU Lesser General Public 00007 * License as published by the Free Software Foundation; either 00008 * version 2.1 of the License, or (at your option) any later version. 00009 * 00010 * This library is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 * Lesser General Public License for more details. 00014 * 00015 * Further, this software is distributed without any warranty that it is 00016 * free of the rightful claim of any third person regarding infringement 00017 * or the like. Any license provided herein, whether implied or 00018 * otherwise, applies only to this software file. Patent licenses, if 00019 * any, provided herein do not apply to combinations of this program with 00020 * other software, or any other product whatsoever. 00021 * 00022 * You should have received a copy of the GNU Lesser General Public 00023 * License along with this library; if not, write to the Free Software 00024 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00025 * 00026 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, 00027 * Mountain View, CA 94043, or: 00028 * 00029 * http://www.sgi.com 00030 * 00031 * For further information regarding this notice, see: 00032 * 00033 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/ 00034 * 00035 */ 00036 00037 00038 /* 00039 * Copyright (C) 1990,91 Silicon Graphics, Inc. 00040 * 00041 _______________________________________________________________________ 00042 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00043 | 00044 | $Revision: 1.1.1.1 $ 00045 | 00046 | Description: 00047 | This file defines the SoCone node class. 00048 | 00049 | Author(s) : Paul S. Strauss, Nick Thompson 00050 | 00051 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00052 _______________________________________________________________________ 00053 */ 00054 00055 #ifndef _SO_CONE_ 00056 #define _SO_CONE_ 00057 00058 #include <Inventor/SbLinear.h> 00059 #include <Inventor/fields/SoSFBitMask.h> 00060 #include <Inventor/fields/SoSFFloat.h> 00061 #include <Inventor/nodes/SoShape.h> 00062 00063 00066 00123 00124 00125 class INVENTOR_API SoCone : public SoShape { 00126 00127 SO_NODE_HEADER(SoCone); 00128 00129 public: 00130 00132 enum Part { 00133 SIDES = 0x01, 00134 BOTTOM = 0x02, 00135 ALL = 0x03 00136 }; 00137 00139 00140 00142 SoSFBitMask parts; 00144 SoSFFloat bottomRadius; 00146 SoSFFloat height; 00147 00149 00151 SoCone(); 00152 00154 void addPart(SoCone::Part part); 00155 void removePart(SoCone::Part part); 00156 00158 SbBool hasPart(SoCone::Part part) const; 00159 00160 SoEXTENDER public: 00162 virtual void GLRender(SoGLRenderAction *action); 00163 virtual void rayPick(SoRayPickAction *action); 00164 00165 SoINTERNAL public: 00166 static void initClass(); 00167 00168 protected: 00170 virtual void generatePrimitives(SoAction *action); 00171 00173 virtual void computeBBox(SoAction *action, SbBox3f &box, 00174 SbVec3f ¢er); 00175 virtual ~SoCone(); 00176 00177 private: 00178 static SbVec2f *coordsArray; 00179 static SbVec3f *normalsArray; 00180 static int maxCoords; 00181 00186 void computeBase(SoAction *action, 00187 int &numSides, int &numSections, 00188 SbVec2f *&baseCoords, 00189 SbVec3f *&sideNormals) const; 00190 00192 void getSize(float &rad, float &hHeight) const; 00193 00195 void GLRenderGeneric(SoGLRenderAction *action, 00196 SbBool sendNormals, SbBool doTextures); 00197 void GLRenderNvertTnone(SoGLRenderAction *action); 00198 00200 SbBool intersectInfiniteCone(const SbLine &ray, 00201 SbVec3f &enterPoint, 00202 SbVec3f &exitPoint) const; 00203 }; 00204 00205 #endif /* _SO_CONE_ */