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326 lines
13 KiB
326 lines
13 KiB
/**************************************************************************** |
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* VCGLib o o * |
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* Visual and Computer Graphics Library o o * |
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* _ O _ * |
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* Copyright(C) 2004-2016 \/)\/ * |
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* Visual Computing Lab /\/| * |
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* ISTI - Italian National Research Council | * |
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* \ * |
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* All rights reserved. * |
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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 General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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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 (http://www.gnu.org/licenses/gpl.txt) * |
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* for more details. * |
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* * |
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****************************************************************************/ |
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/**************************************************************************** |
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History |
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$Log: not supported by cvs2svn $ |
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Revision 1.10 2007/07/31 12:21:50 ganovelli |
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added gltetra, added normal gltriangle |
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Revision 1.9 2007/05/08 18:55:38 ganovelli |
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glTriangle added |
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Revision 1.8 2007/01/18 01:26:23 cignoni |
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Added cast for mac compiling |
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Revision 1.7 2005/10/13 08:32:26 cignoni |
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Added glscale(scalar) and corrected bug in glscale(point2) |
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Revision 1.6 2005/06/30 10:17:04 ganovelli |
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added draw plane |
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Revision 1.5 2005/05/05 12:28:13 cignoni |
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added glboxwire |
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Revision 1.4 2004/07/07 23:30:28 cignoni |
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Added box3 drawing functions |
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Revision 1.3 2004/05/26 15:13:01 cignoni |
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Removed inclusion of gl extension stuff and added glcolor stuff |
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Revision 1.2 2004/05/13 23:44:47 ponchio |
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<GL/GL.h> --> <GL/gl.h> |
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Revision 1.1 2004/04/05 11:56:14 cignoni |
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First working version! |
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****************************************************************************/ |
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#ifndef VCG_USE_EIGEN |
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#include "deprecated_space.h" |
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#else |
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#ifndef VCG_GL_SPACE_H |
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#define VCG_GL_SPACE_H |
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// Please note that this file assume that you have already included your |
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// gl-extension wrapping utility, and that therefore all the extension symbol are already defined. |
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#include <vcg/space/triangle3.h> |
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#include <vcg/space/plane3.h> |
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#include <vcg/space/point2.h> |
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#include <vcg/space/point3.h> |
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#include <vcg/space/color4.h> |
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#include <vcg/space/box2.h> |
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#include <vcg/space/box3.h> |
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namespace vcg { |
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template<typename Derived, int Rows=Derived::RowsAtCompileTime, int Cols=Derived::ColsAtCompileTime> |
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struct EvalToKnownPointType; |
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template<typename Derived> struct EvalToKnownPointType<Derived,2,1> |
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{ typedef Point2<typename Derived::Scalar> Type; }; |
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template<typename Derived> struct EvalToKnownPointType<Derived,3,1> |
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{ typedef Point3<typename Derived::Scalar> Type; }; |
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template<typename Derived> struct EvalToKnownPointType<Derived,4,1> |
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{ typedef Point4<typename Derived::Scalar> Type; }; |
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#define _WRAP_EIGEN_XPR(FUNC) template<typename Derived> \ |
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inline void FUNC(const Eigen::MatrixBase<Derived>& p) { \ |
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FUNC(typename EvalToKnownPointType<Derived>::Type(p)); } |
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_WRAP_EIGEN_XPR(glVertex) |
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_WRAP_EIGEN_XPR(glNormal) |
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_WRAP_EIGEN_XPR(glTexCoord) |
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_WRAP_EIGEN_XPR(glTranslate) |
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_WRAP_EIGEN_XPR(glScale) |
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inline void glScale(float const & p){ glScalef(p,p,p);} |
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inline void glScale(double const & p){ glScaled(p,p,p);} |
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template<typename T> inline void glVertex(const Eigen::Matrix<T,2,1> & p) { assert(0); } |
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template<> inline void glVertex(const Eigen::Matrix<int,2,1> & p) { glVertex2iv((const GLint*)p.data());} |
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template<> inline void glVertex(const Eigen::Matrix<short,2,1> & p) { glVertex2sv(p.data());} |
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template<> inline void glVertex(const Eigen::Matrix<float,2,1> & p) { glVertex2fv(p.data());} |
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template<> inline void glVertex(const Eigen::Matrix<double,2,1> & p){ glVertex2dv(p.data());} |
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template<typename T> inline void glTexCoord(const Eigen::Matrix<T,2,1> & p) { assert(0); } |
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template<> inline void glTexCoord(const Eigen::Matrix<int,2,1> & p) { glTexCoord2iv((const GLint*)p.data());} |
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template<> inline void glTexCoord(const Eigen::Matrix<short,2,1> & p) { glTexCoord2sv(p.data());} |
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template<> inline void glTexCoord(const Eigen::Matrix<float,2,1> & p) { glTexCoord2fv(p.data());} |
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template<> inline void glTexCoord(const Eigen::Matrix<double,2,1> & p){ glTexCoord2dv(p.data());} |
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template<typename T> inline void glTranslate(const Eigen::Matrix<T,2,1> & p) { assert(0); } |
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template<> inline void glTranslate(const Eigen::Matrix<float,2,1> & p) { glTranslatef(p[0],p[1],0);} |
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template<> inline void glTranslate(const Eigen::Matrix<double,2,1> & p){ glTranslated(p[0],p[1],0);} |
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template<typename T> inline void glScale(const Eigen::Matrix<T,2,1> & p) { assert(0); } |
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template<> inline void glScale(const Eigen::Matrix<float,2,1> & p) { glScalef(p[0],p[1],1.f);} |
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template<> inline void glScale(const Eigen::Matrix<double,2,1> & p){ glScaled(p[0],p[1],1.0);} |
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template<typename T> inline void glVertex(const Eigen::Matrix<T,3,1> & p) { assert(0); } |
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template<> inline void glVertex(const Eigen::Matrix<int,3,1> & p) { glVertex3iv((const GLint*)p.data());} |
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template<> inline void glVertex(const Eigen::Matrix<short,3,1> & p) { glVertex3sv(p.data());} |
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template<> inline void glVertex(const Eigen::Matrix<float,3,1> & p) { glVertex3fv(p.data());} |
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template<> inline void glVertex(const Eigen::Matrix<double,3,1> & p){ glVertex3dv(p.data());} |
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template<typename T> inline void glNormal(const Eigen::Matrix<T,3,1> & p) { assert(0); } |
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template<> inline void glNormal(const Eigen::Matrix<int,3,1> & p) { glNormal3iv((const GLint*)p.data());} |
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template<> inline void glNormal(const Eigen::Matrix<short,3,1> & p) { glNormal3sv(p.data());} |
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template<> inline void glNormal(const Eigen::Matrix<float,3,1> & p) { glNormal3fv(p.data());} |
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template<> inline void glNormal(const Eigen::Matrix<double,3,1> & p){ glNormal3dv(p.data());} |
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template<typename T> inline void glTexCoord(const Eigen::Matrix<T,3,1> & p) { assert(0); } |
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template<> inline void glTexCoord(const Eigen::Matrix<int,3,1> & p) { glTexCoord3iv((const GLint*)p.data());} |
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template<> inline void glTexCoord(const Eigen::Matrix<short,3,1> & p) { glTexCoord3sv(p.data());} |
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template<> inline void glTexCoord(const Eigen::Matrix<float,3,1> & p) { glTexCoord3fv(p.data());} |
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template<> inline void glTexCoord(const Eigen::Matrix<double,3,1> & p){ glTexCoord3dv(p.data());} |
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template<typename T> inline void glTranslate(const Eigen::Matrix<T,3,1> & p) { assert(0); } |
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template<> inline void glTranslate(const Eigen::Matrix<float,3,1> & p) { glTranslatef(p[0],p[1],p[2]);} |
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template<> inline void glTranslate(const Eigen::Matrix<double,3,1> & p){ glTranslated(p[0],p[1],p[2]);} |
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template<typename T> inline void glScale(const Eigen::Matrix<T,3,1> & p) { assert(0); } |
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template<> inline void glScale(const Eigen::Matrix<float,3,1> & p) { glScalef(p[0],p[1],p[2]);} |
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template<> inline void glScale(const Eigen::Matrix<double,3,1> & p){ glScaled(p[0],p[1],p[2]);} |
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inline void glColor(Color4b const & c) { glColor4ubv(c.data());} |
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inline void glClearColor(Color4b const &c) { ::glClearColor(float(c[0])/255.0f,float(c[1])/255.0f,float(c[2])/255.0f,1.0f);} |
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inline void glLight(GLenum light, GLenum pname, Color4b const & c) { |
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static float cf[4]; |
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cf[0]=float(cf[0]/255.0); cf[1]=float(c[1]/255.0); cf[2]=float(c[2]/255.0); cf[3]=float(c[3]/255.0); |
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glLightfv(light,pname,cf); |
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} |
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template <class T> |
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inline void glBoxWire(Box3<T> const & b) |
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{ |
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glPushAttrib(GL_ENABLE_BIT); |
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glDisable(GL_LIGHTING); |
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glBegin(GL_LINE_STRIP); |
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glVertex3f((float)b.min[0],(float)b.min[1],(float)b.min[2]); |
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glVertex3f((float)b.max[0],(float)b.min[1],(float)b.min[2]); |
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glVertex3f((float)b.max[0],(float)b.max[1],(float)b.min[2]); |
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glVertex3f((float)b.min[0],(float)b.max[1],(float)b.min[2]); |
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glVertex3f((float)b.min[0],(float)b.min[1],(float)b.min[2]); |
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glEnd(); |
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glBegin(GL_LINE_STRIP); |
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glVertex3f((float)b.min[0],(float)b.min[1],(float)b.max[2]); |
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glVertex3f((float)b.max[0],(float)b.min[1],(float)b.max[2]); |
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glVertex3f((float)b.max[0],(float)b.max[1],(float)b.max[2]); |
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glVertex3f((float)b.min[0],(float)b.max[1],(float)b.max[2]); |
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glVertex3f((float)b.min[0],(float)b.min[1],(float)b.max[2]); |
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glEnd(); |
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glBegin(GL_LINES); |
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glVertex3f((float)b.min[0],(float)b.min[1],(float)b.min[2]); |
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glVertex3f((float)b.min[0],(float)b.min[1],(float)b.max[2]); |
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glVertex3f((float)b.max[0],(float)b.min[1],(float)b.min[2]); |
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glVertex3f((float)b.max[0],(float)b.min[1],(float)b.max[2]); |
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glVertex3f((float)b.max[0],(float)b.max[1],(float)b.min[2]); |
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glVertex3f((float)b.max[0],(float)b.max[1],(float)b.max[2]); |
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glVertex3f((float)b.min[0],(float)b.max[1],(float)b.min[2]); |
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glVertex3f((float)b.min[0],(float)b.max[1],(float)b.max[2]); |
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glEnd(); |
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glPopAttrib(); |
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}; |
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template <class T> |
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/// Funzione di utilita' per la visualizzazione in OpenGL (flat shaded) |
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inline void glBoxFlat(Box3<T> const & b) |
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{ |
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glPushAttrib(GL_SHADE_MODEL); |
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glShadeModel(GL_FLAT); |
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glBegin(GL_QUAD_STRIP); |
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glNormal3f(.0f,.0f,1.0f); |
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glVertex3f(b.min[0], b.max[1], b.max[2]); |
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glVertex3f(b.min[0], b.min[1], b.max[2]); |
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glVertex3f(b.max[0], b.max[1], b.max[2]); |
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glVertex3f(b.max[0], b.min[1], b.max[2]); |
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glNormal3f(1.0f,.0f,.0f); |
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glVertex3f(b.max[0], b.max[1], b.min[2]); |
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glVertex3f(b.max[0], b.min[1], b.min[2]); |
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glNormal3f(.0f,.0f,-1.0f); |
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glVertex3f(b.min[0], b.max[1], b.min[2]); |
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glVertex3f(b.min[0], b.min[1], b.min[2]); |
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glNormal3f(-1.0f,.0f,.0f); |
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glVertex3f(b.min[0], b.max[1], b.max[2]); |
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glVertex3f(b.min[0], b.min[1], b.max[2]); |
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glEnd(); |
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glBegin(GL_QUADS); |
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glNormal3f(.0f,1.0f,.0f); |
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glVertex3f(b.min[0], b.max[1], b.max[2]); |
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glVertex3f(b.max[0], b.max[1], b.max[2]); |
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glVertex3f(b.max[0], b.max[1], b.min[2]); |
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glVertex3f(b.min[0], b.max[1], b.min[2]); |
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glNormal3f(.0f,-1.0f,.0f); |
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glVertex3f(b.min[0], b.min[1], b.min[2]); |
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glVertex3f(b.max[0], b.min[1], b.min[2]); |
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glVertex3f(b.max[0], b.min[1], b.max[2]); |
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glVertex3f(b.min[0], b.min[1], b.max[2]); |
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glEnd(); |
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glPopAttrib(); |
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}; |
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template <class T> |
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/// Setta i sei clip planes di opengl a far vedere solo l'interno del box |
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inline void glBoxClip(const Box3<T> & b) |
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{ |
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double eq[4]; |
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eq[0]= 1; eq[1]= 0; eq[2]= 0; eq[3]=(double)-b.min[0]; |
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glClipPlane(GL_CLIP_PLANE0,eq); |
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eq[0]=-1; eq[1]= 0; eq[2]= 0; eq[3]=(double) b.max[0]; |
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glClipPlane(GL_CLIP_PLANE1,eq); |
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eq[0]= 0; eq[1]= 1; eq[2]= 0; eq[3]=(double)-b.min[1]; |
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glClipPlane(GL_CLIP_PLANE2,eq); |
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eq[0]= 0; eq[1]=-1; eq[2]= 0; eq[3]=(double) b.max[1]; |
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glClipPlane(GL_CLIP_PLANE3,eq); |
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eq[0]= 0; eq[1]= 0; eq[2]= 1; eq[3]=(double)-b.min[2]; |
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glClipPlane(GL_CLIP_PLANE4,eq); |
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eq[0]= 0; eq[1]= 0; eq[2]=-1; eq[3]=(double) b.max[2]; |
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glClipPlane(GL_CLIP_PLANE5,eq); |
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} |
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template <class T> |
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inline void glBoxWire(const Box2<T> & b) |
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{ |
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glPushAttrib(GL_ENABLE_BIT); |
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glDisable(GL_LIGHTING); |
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glBegin(GL_LINE_LOOP); |
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glVertex2f((float)b.min[0],(float)b.min[1]); |
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glVertex2f((float)b.max[0],(float)b.min[1]); |
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glVertex2f((float)b.max[0],(float)b.max[1]); |
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glVertex2f((float)b.min[0],(float)b.max[1]); |
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glEnd(); |
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glPopAttrib(); |
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}; |
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template <class T> |
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inline void glPlane3( Plane3<T> p, Point3<T> c, T size ) { |
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Point3<T> w = p.Direction(); |
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Point3<T> u,v,c1; |
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GetUV<T>(w,u,v); |
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c1 = p.Projection(c); |
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u.Normalize(); |
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w.Normalize(); |
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v.Normalize(); |
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Matrix44<T> m; |
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*(Point3<T>*)&m[0][0] = *(Point3<T>*)&u[0];m[0][3]=0; |
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*(Point3<T>*)&m[1][0] = *(Point3<T>*)&w[0];m[1][3]=0; |
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*(Point3<T>*)&m[2][0] = *(Point3<T>*)&v[0];m[2][3]=0; |
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*(Point3<T>*)&m[3][0] = *(Point3<T>*)&c1[0];m[3][3]=1; |
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glPushMatrix(); |
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glMultMatrix(m.transpose()); |
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glBegin(GL_QUADS); |
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glNormal(Point3<T>(0,1,0)); |
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glVertex(Point3<T>(-size,0,-size)); |
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glVertex(Point3<T>(size ,0,-size)); |
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glVertex(Point3<T>(size ,0, size)); |
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glVertex(Point3<T>(-size,0, size)); |
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glEnd(); |
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glPopMatrix(); |
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} |
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template <class TriangleType> |
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inline void glTriangle3( TriangleType & c ) { |
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vcg::Point3<typename TriangleType::ScalarType> n = vcg::Normal(c); |
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glBegin(GL_TRIANGLES); |
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glNormal(n); |
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glVertex(c.P(0)); |
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glVertex(c.P(1)); |
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glVertex(c.P(2)); |
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glEnd(); |
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} |
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template <class TetraType> |
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inline void glTetra3( TetraType & c ) { |
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glTriangle3(Triangle3<typename TetraType::ScalarType>(c.P(0),c.P(1),c.P(2))); |
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glTriangle3(Triangle3<typename TetraType::ScalarType>(c.P(1),c.P(3),c.P(2))); |
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glTriangle3(Triangle3<typename TetraType::ScalarType>(c.P(0),c.P(2),c.P(3))); |
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glTriangle3(Triangle3<typename TetraType::ScalarType>(c.P(1),c.P(0),c.P(3))); |
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} |
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}//namespace |
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#endif |
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#endif
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