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Commit 5be98959 authored by Sylvain Thery's avatar Sylvain Thery
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Render of primal topo for 2-Maps

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include/Algo/Render/GL2/topoPrimalRender.h 0 → 100644
View file @ 5be98959
/*******************************************************************************
* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps *
* version 0.1 *
* Copyright (C) 2009-2012, IGG Team, LSIIT, University of Strasbourg *
* *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by the *
* Free Software Foundation; either version 2.1 of the License, or (at your *
* option) any later version. *
* *
* This library 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 Lesser General Public License *
* for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
* *
* Web site: http://cgogn.unistra.fr/ *
* Contact information: cgogn@unistra.fr *
* *
*******************************************************************************/
#ifndef _TOPO_PRIMAL_RENDER
#define _TOPO_PRIMAL_RENDER
#include <vector>
#include <list>
#include "Topology/generic/dart.h"
#include "Topology/generic/attributeHandler.h"
#include "Topology/generic/functor.h"
#include "Geometry/vector_gen.h"
#include "Utils/GLSLShader.h"
#include "Utils/Shaders/shaderSimpleColor.h"
#include "Utils/Shaders/shaderColorPerVertex.h"
#include "Utils/vbo_base.h"
#include "Utils/svg.h"
namespace CGoGN
{
namespace Algo
{
namespace Render
{
namespace GL2
{
class TopoPrimalRender
{
protected:
/**
* vbo buffers
* 0: vertices darts
* 1: vertices alpha1
* 2: colors
*/
Utils::VBO* m_vbo0;
Utils::VBO* m_vbo1;
Utils::VBO* m_vbo2;
unsigned int m_vaId;
Utils::ShaderSimpleColor* m_shader1;
Utils::ShaderColorPerVertex* m_shader2;
/**
*number of darts to draw
*/
GLuint m_nbDarts;
/**
* number of relations 2 to draw
*/
GLuint m_nbRel1;
/**
* width of lines use to draw darts
*/
float m_topo_dart_width;
/**
* width of lines use to draw phi
*/
float m_topo_relation_width;
/**
* pointer for saved colorvbo (in picking)
*/
float *m_color_save;
/**
* initial darts color (set in update)
*/
Geom::Vec3f m_dartsColor;
/**
* initial darts color for boundary (set in update)
*/
Geom::Vec3f m_boundaryDartsColor;
/**
* attribute index to get easy correspondence dart/color
*/
DartAttribute<unsigned int> m_attIndex;
Geom::Vec3f* m_bufferDartPosition;
/**
* save colors
*/
void pushColors();
/**
* restore colors
*/
void popColors();
/**
* pick dart with color set by setDartsIdColor
* @param x position of mouse (x)
* @param y position of mouse (pass H-y, classic pb of origin)
* @return the dart or NIL
*/
Dart pickColor(unsigned int x, unsigned int y);
public:
/**
* Constructor
*/
TopoPrimalRender();
/**
* Destructor
*/
~TopoPrimalRender();
Utils::GLSLShader* shader1() { return static_cast<Utils::GLSLShader*>(m_shader1);}
Utils::GLSLShader* shader2() { return static_cast<Utils::GLSLShader*>(m_shader2);}
/**
* set the with of line use to draw darts (default val is 2)
* @param dw width
*/
void setDartWidth(float dw);
/**
* set the with of line use to draw phi (default val is ")
* @param pw width
*/
void setRelationWidth(float pw);
/**
* Drawing function for darts only
*/
void drawDarts();
/**
* Drawing function for phi2 only
*/
void drawRelation1();
/**
* draw all topo
* \warning DO NOT FORGET TO DISABLE CULLFACE BEFORE CALLING
*/
void drawTopo();
/**
* change dart drawing color
* @param d the dart
* @param r red !
* @param g green !
* @param b blue !
*/
void setDartColor(Dart d, float r, float g, float b);
/**
* change all darts drawing color
* @param r red !
* @param g green !
* @param b blue !
*/
void setAllDartsColor(float r, float g, float b);
/**
* change dart initial color (used when calling updateData)
* @param r red !
* @param g green !
* @param b blue !
*/
void setInitialDartsColor(float r, float g, float b);
void setInitialBoundaryDartsColor(float r, float g, float b);
/**
* overdraw a dart with given width and color
* @param d the dart
* @param width drawing width
* @param r red !
* @param g green !
* @param b blue !
*/
void overdrawDart(Dart d, float width, float r, float g, float b);
/**
* store darts in color for picking
*/
template<typename PFP>
void setDartsIdColor(typename PFP::MAP& map);
/**
* pick dart with color set bey setDartsIdColor
* Do not forget to apply same transformation to scene before picking than before drawing !
* @param map the map
* @param x position of mouse (x)
* @param y position of mouse (pass H-y, classic pb of origin)
* @return the dart or NIL
*/
template<typename PFP>
Dart picking(typename PFP::MAP& map, int x, int y);
/**
* compute dart from color (for picking)
*/
Dart colToDart(float* color);
/**
* compute color from dart (for picking)
*/
void dartToCol(Dart d, float& r, float& g, float& b);
/**
* update all drawing buffers to render a dual map
* @param map the map
* @param positions attribute of position vertices
* @param ke exploding coef for edge
*/
template<typename PFP>
void updateData(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC3>& positions, float ke);
/**
* update color buffer with color attribute handler
* @param map the map
* @param colors attribute of dart's colors
*/
template<typename PFP>
void updateColors(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC3>& colors);
/**
* Get back middle position of drawn darts
* @param map the map
* @param posExpl the output positions
*/
template<typename PFP>
void computeDartMiddlePositions(typename PFP::MAP& map, DartAttribute<typename PFP::VEC3>& posExpl);
/**
* render to svg struct
*/
void toSVG(Utils::SVG::SVGOut& svg);
/**
* render svg into svg file
*/
void svgout2D(const std::string& filename, const glm::mat4& model, const glm::mat4& proj);
template<typename PFP>
Dart coneSelection(typename PFP::MAP& map, const Geom::Vec3f& rayA, const Geom::Vec3f& rayAB, float angle);
template<typename PFP>
Dart raySelection(typename PFP::MAP& map, const Geom::Vec3f& rayA, const Geom::Vec3f& rayAB, float distmax);
};
}//end namespace GL2
}//end namespace Algo
}//end namespace Render
}//end namespace CGoGN
#include "Algo/Render/GL2/topoPrimalRender.hpp"
#endif
include/Algo/Render/GL2/topoPrimalRender.hpp 0 → 100644
View file @ 5be98959
/*******************************************************************************
* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps *
* version 0.1 *
* Copyright (C) 2009-2012, IGG Team, LSIIT, University of Strasbourg *
* *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by the *
* Free Software Foundation; either version 2.1 of the License, or (at your *
* option) any later version. *
* *
* This library 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 Lesser General Public License *
* for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
* *
* Web site: http://cgogn.unistra.fr/ *
* Contact information: cgogn@unistra.fr *
* *
*******************************************************************************/
#include "Geometry/vector_gen.h"
#include "Topology/generic/autoAttributeHandler.h"
#include "Topology/generic/dartmarker.h"
#include "Topology/generic/cellmarker.h"
#include "Topology/map/map3.h"
#include "Topology/generic/traversorCell.h"
#include "Geometry/distances.h"
namespace CGoGN
{
namespace Algo
{
namespace Render
{
namespace GL2
{
template<typename PFP>
void TopoPrimalRender::setDartsIdColor(typename PFP::MAP& map)
{
m_vbo2->bind();
float* colorBuffer = reinterpret_cast<float*>(glMapBuffer(GL_ARRAY_BUFFER, GL_READ_WRITE));
unsigned int nb=0;
for (Dart d = map.begin(); d != map.end(); map.next(d))
{
if (nb < m_nbDarts)
{
float r,g,b;
dartToCol(d, r,g,b);
float* local = colorBuffer+3*m_attIndex[d]; // get the right position in VBO
*local++ = r;
*local++ = g;
*local++ = b;
*local++ = r;
*local++ = g;
*local++ = b;
nb++;
}
else
{
CGoGNerr << "Error buffer too small for color picking (change the selector parameter ?)" << CGoGNendl;
break;
}
}
glUnmapBuffer(GL_ARRAY_BUFFER);
}
template<typename PFP>
void TopoPrimalRender::updateColors(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC3>& colors)
{
m_vbo2->bind();
Geom::Vec3f* colorBuffer = reinterpret_cast<Geom::Vec3f*>(glMapBuffer(GL_ARRAY_BUFFER, GL_READ_WRITE));
unsigned int nb=0;
for (Dart d = map.begin(); d != map.end(); map.next(d))
{
if (nb < m_nbDarts)
{
colorBuffer[m_attIndex[d]] = colors[d];
nb++;
}
else
{
CGoGNerr << "Error buffer too small for color picking (change the selector parameter ?)" << CGoGNendl;
break;
}
}
glUnmapBuffer(GL_ARRAY_BUFFER);
}
template<typename PFP>
Dart TopoPrimalRender::picking(typename PFP::MAP& map, int x, int y)
{
pushColors();
setDartsIdColor<PFP>(map);
Dart d = pickColor(x,y);
popColors();
return d;
}
template<typename PFP>
void TopoPrimalRender::updateData(typename PFP::MAP& map, const VertexAttribute<typename PFP::VEC3>& positions, float ke)
{
typedef typename PFP::VEC3 VEC3;
typedef typename PFP::REAL REAL;
typedef typename PFP::VEC3 VEC3;
typedef typename PFP::REAL REAL;
if (m_attIndex.map() != &map)
m_attIndex = map.template getAttribute<unsigned int, DART>("dart_index");
if (!m_attIndex.isValid())
m_attIndex = map.template addAttribute<unsigned int, DART>("dart_index");
// m_nbDarts = 0;
// for (Dart d = map.begin(); d != map.end(); map.next(d))
// {
// m_nbDarts++;
// }
m_nbDarts = map.getNbDarts();
DartAutoAttribute<VEC3> fv1(map);
m_vbo2->bind();
glBufferData(GL_ARRAY_BUFFER, 2*m_nbDarts*sizeof(VEC3), 0, GL_STREAM_DRAW);
GLvoid* ColorDartsBuffer = glMapBuffer(GL_ARRAY_BUFFER, GL_READ_WRITE);
VEC3* colorDartBuf = reinterpret_cast<VEC3*>(ColorDartsBuffer);
if (m_bufferDartPosition!=NULL)
delete m_bufferDartPosition;
m_bufferDartPosition = new Geom::Vec3f[2*m_nbDarts];
VEC3* positionDartBuf = reinterpret_cast<VEC3*>(m_bufferDartPosition);
std::vector<Dart> vecDartFaces;
vecDartFaces.reserve(m_nbDarts/6);
unsigned int posDBI=0;
//traverse each edge
TraversorE<typename PFP::MAP> traEdge(map);
for (Dart d = traEdge.begin(); d != traEdge.end(); d = traEdge.next())
{
std::vector<VEC3> vecPos;
vecPos.reserve(16);
VEC3 pos1 = positions[d];
VEC3 pos2 = positions[map.phi1(d)];
float oke = 1.0f - ke;
VEC3 P = pos1*ke + pos2*oke;
VEC3 Q = pos2*ke + pos1*oke;
VEC3 PP = 0.52f*P + 0.48f*Q;
VEC3 QQ = 0.52f*Q + 0.48f*P;
*positionDartBuf++ = P;
*positionDartBuf++ = PP;
if (map.isBoundaryMarked2(d))
{
*colorDartBuf++ = m_boundaryDartsColor;
*colorDartBuf++ = m_boundaryDartsColor;
}
else
{
*colorDartBuf++ = m_dartsColor;
*colorDartBuf++ = m_dartsColor;
}
m_attIndex[d] = posDBI;
posDBI+=2;
fv1[d] = (P+PP)*0.5f;
*positionDartBuf++ = Q;
*positionDartBuf++ = QQ;
Dart dx = map.phi2(d);
if (map.isBoundaryMarked2(dx))
{
*colorDartBuf++ = m_boundaryDartsColor;
*colorDartBuf++ = m_boundaryDartsColor;
}
else
{
*colorDartBuf++ = m_dartsColor;
*colorDartBuf++ = m_dartsColor;
}
m_attIndex[dx] = posDBI;
posDBI+=2;
fv1[dx] = (Q+QQ)*0.5f;
}
m_vbo2->bind();
glUnmapBuffer(GL_ARRAY_BUFFER);
m_vbo0->bind();
glBufferData(GL_ARRAY_BUFFER, 2*m_nbDarts*sizeof(VEC3), m_bufferDartPosition, GL_STREAM_DRAW);
// alpha1
m_vbo1->bind();
glBufferData(GL_ARRAY_BUFFER, 2*m_nbDarts*sizeof(typename PFP::VEC3), 0, GL_STREAM_DRAW);
GLvoid* PositionBuffer1 = glMapBufferARB(GL_ARRAY_BUFFER, GL_READ_WRITE);
VEC3* positionF1 = reinterpret_cast<VEC3*>(PositionBuffer1);
m_nbRel1=0;
for (Dart d = map.begin(); d != map.end(); map.next(d))
{
Dart e = map.phi1(map.phi2(d));
*positionF1++ = fv1[d];
*positionF1++ = fv1[e];
m_nbRel1++;
}
m_vbo1->bind();
glUnmapBuffer(GL_ARRAY_BUFFER);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
template<typename PFP>
void TopoPrimalRender::computeDartMiddlePositions(typename PFP::MAP& map, DartAttribute<typename PFP::VEC3>& posExpl)
{
m_vbo0->bind();
typename PFP::VEC3* positionsPtr = reinterpret_cast<typename PFP::VEC3*>(glMapBuffer(GL_ARRAY_BUFFER, GL_READ_ONLY));
for (Dart d = map.begin(); d != map.end(); map.next(d))
{
posExpl[d] = (positionsPtr[m_attIndex[d]] + positionsPtr[m_attIndex[d]+1])*0.5f;
}
m_vbo0->bind();
glUnmapBuffer(GL_ARRAY_BUFFER);
}
template<typename PFP>
Dart TopoPrimalRender::coneSelection(typename PFP::MAP& map, const Geom::Vec3f& rayA, const Geom::Vec3f& rayAB, float angle)
{
float AB2 = rayAB*rayAB;
Dart dFinal;
double sin2 = sin(M_PI/180.0 * angle);
sin2 = sin2*sin2;
double dist2 = std::numeric_limits<double>::max();
for(Dart d = map.begin(); d!=map.end(); map.next(d))
{
// get back position of segment PQ
const Geom::Vec3f& P = m_bufferDartPosition[m_attIndex[d]];
const Geom::Vec3f& Q =m_bufferDartPosition[m_attIndex[d]+1];
float ld2 = Geom::squaredDistanceLine2Seg(rayA, rayAB, AB2, P, Q);
Geom::Vec3f V = (P+Q)/2.0f - rayA;
double d2 = double(V*V);
double s2 = double(ld2) / d2;
if (s2 < sin2)
{
if (d2<dist2)
{
dist2 = d2;
dFinal = d;
}
}
}
return dFinal;
}
template<typename PFP>
Dart TopoPrimalRender::raySelection(typename PFP::MAP& map, const Geom::Vec3f& rayA, const Geom::Vec3f& rayAB, float dmax)
{
float AB2 = rayAB*rayAB;
Dart dFinal;
float dm2 = dmax*dmax;
double dist2 = std::numeric_limits<double>::max();
for(Dart d = map.begin(); d!=map.end(); map.next(d))
{
// get back position of segment PQ
const Geom::Vec3f& P = m_bufferDartPosition[m_attIndex[d]];
const Geom::Vec3f& Q =m_bufferDartPosition[m_attIndex[d]+1];
float ld2 = Geom::squaredDistanceLine2Seg(rayA, rayAB, AB2, P, Q);
if (ld2<dm2)
{
Geom::Vec3f V = (P+Q)/2.0f - rayA;
double d2 = double(V*V);
if (d2<dist2)
{
dist2 = d2;
dFinal = d;
}
}
}
return dFinal;
}
} //end namespace GL2