tuto_oper3.cpp 24.6 KB
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/*******************************************************************************
* 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 "tuto_oper3.h"
#include "Algo/Geometry/boundingbox.h"
#include "Algo/Modelisation/polyhedron.h"
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#include "Algo/Modelisation/tetrahedralization.h"
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#include "Algo/Modelisation/primitives3d.h"
#include "Algo/Geometry/centroid.h"
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#include "Algo/Geometry/normal.h"
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#include "Algo/Import/import.h"
#include "Algo/Export/export.h"

using namespace CGoGN ;


int main(int argc, char **argv)
{
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    //	// interface
    QApplication app(argc, argv);
    MyQT sqt;
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    sqt.setDock(& sqt.dock);
    sqt.setCallBack( sqt.dock.listOper, SIGNAL(currentRowChanged(int)), SLOT(operation(int)) );
    sqt.setCallBack( sqt.dock.svg, SIGNAL(clicked()), SLOT(svg()) );
    sqt.setCallBack( sqt.dock.widthSlider, SIGNAL(valueChanged(int)), SLOT(width(int)) );
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    sqt.setCallBack( sqt.dock.checkBox_hide, SIGNAL(toggled(bool)), SLOT(hide_onoff(bool)) );
    sqt.setCallBack( sqt.dock.checkBox_plane, SIGNAL(toggled(bool)), SLOT(clipping_onoff(bool)) );
    int n=3;
    if (argc==2)
        n = atoi(argv[1]);

    // example code itself
    sqt.createMap(n);

    sqt.width(5);

    // set help message in menu
    sqt.setHelpMsg("First Tuto: \nCreate two faces\nsew them\nand affect positions");
    // final show for redraw
    sqt.show();
    // and wait for the end
    return app.exec();
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}

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void MyQT::clipping_onoff(bool x)
{
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    clip_volume = x;

    if (clip_volume)
    {
        Geom::Vec3f pos = m_PlanePick->getPosition();
        float pipo;
        Geom::Vec3f normal = m_PlanePick->getAxisScale(2, pipo); // 2 = Z axis = plane normal
        m_sh1->setClipPlaneParamsAll(clip_id1, normal, pos);
        m_sh2->setClipPlaneParamsAll(clip_id2, normal, pos);
        m_sh3->setClipPlaneParamsAll(clip_id3, normal, pos);
        m_sh4->setClipPlaneParamsAll(clip_id4, normal, pos);
    }
    else
    {
        m_sh1->setClipPlaneParamsAll(clip_id1, Geom::Vec3f(0,0,1), Geom::Vec3f(0,0,999999.9f));
        m_sh2->setClipPlaneParamsAll(clip_id2, Geom::Vec3f(0,0,1), Geom::Vec3f(0,0,999999.9f));
        m_sh3->setClipPlaneParamsAll(clip_id3, Geom::Vec3f(0,0,1), Geom::Vec3f(0,0,999999.9f));
        m_sh4->setClipPlaneParamsAll(clip_id4, Geom::Vec3f(0,0,1), Geom::Vec3f(0,0,999999.9f));

        m_sh1->setClipColorAttenuationFactorRelative(0.0f,0.0f);
        m_sh2->setClipColorAttenuationFactorRelative(0.0f,0.0f);
        m_sh3->setClipColorAttenuationFactorRelative(0.0f,0.0f);
        m_sh4->setClipColorAttenuationFactorRelative(0.0f,0.0f);

    }
    updateMap();
    updateGL();
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}

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void MyQT::hide_onoff(bool /*x*/)
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{
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    hide_clipping = !hide_clipping;
    updateMap();
    updateGL();
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}

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void MyQT::operation(int x)
{
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    switch(x)
    {
        case 0:
            CGoGNout <<"delete vertex"<<CGoGNendl;
            if (m_selected != NIL)
            {
                m_selected=myMap.deleteVertex(m_selected);
                m_selected = NIL;
                updateMap();
            }
            break;
        case 1:
            CGoGNout <<"cut edge"<<CGoGNendl;
            if (m_selected != NIL)
            {
                PFP::VEC3 Q = position[myMap.phi1(m_selected)];
                myMap.cutEdge(m_selected);
                position[myMap.phi1(m_selected)] = (position[m_selected] + Q)/2.0f;
                updateMap();
            }
            break;
        case 2:
            CGoGNout <<"uncut edge"<<CGoGNendl;
            if (m_selected != NIL)
            {
                myMap.uncutEdge(m_selected);
                updateMap();
            }
            break;
        case 3:
            CGoGNout <<"delete edge"<<CGoGNendl;
            if (m_selected != NIL)
            {
                if (myMap.deleteEdgePreCond(m_selected))
                {
                    myMap.deleteEdge(m_selected);
                    m_selected = NIL;
                    updateMap();
                }
                else
                {
                    CGoGNerr << "Could not delete this edge" << CGoGNendl;
                }
            }
            break;
        case 4:
            CGoGNout <<"collapse edge"<<CGoGNendl;
            if (m_selected != NIL)
            {
                PFP::VEC3 Q = (position[myMap.phi1(m_selected)] + position[m_selected])/2.0f;
                Dart x = myMap.collapseEdge(m_selected);
                position[x]= Q;
                m_selected = NIL;
                updateMap();
            }
            break;
        case 5:
            CGoGNout <<"split face"<<CGoGNendl;
            if (m_selected != NIL)
            {
                myMap.splitFace(m_selected,m_selected2);
                updateMap();
            }
            break;
        case 6:
            CGoGNout <<"merge volume"<<CGoGNendl;
            if (m_selected != NIL)
            {
                myMap.mergeVolumes(m_selected);
                updateMap();
            }
            break;

        case 7:
            CGoGNout <<"split volume"<<CGoGNendl;
            if (!m_selecteds.empty())
            {
                std::cout << "start" << std::endl;
                for(std::vector<Dart>::iterator it = m_selecteds.begin() ; it != m_selecteds.end() ; ++it)
                    std::cout << *it << " et phi2() = " << myMap.phi2(*it) <<  std::endl;
                std::cout << "end" << std::endl;

                myMap.splitVolume(m_selecteds);
                m_selecteds.clear();
                updateMap();
            }
            break;
        case 8:
            CGoGNout <<"collapse face"<<CGoGNendl;
            if (m_selected != NIL)
            {
                PFP::VEC3 Q = Algo::Surface::Geometry::faceCentroid<PFP>(myMap,m_selected,position);
                Dart x = myMap.collapseFace(m_selected);
                position[x]= Q;
                m_selected = NIL;
                updateMap();
            }
            break;
        case 9:
            CGoGNout <<"collapse volume"<<CGoGNendl;
            if (m_selected != NIL)
            {
                PFP::VEC3 Q = Algo::Surface::Geometry::volumeCentroid<PFP>(myMap,m_selected,position);
                Dart x = myMap.collapseVolume(m_selected);
                position[x]= Q;
                m_selected = NIL;
                updateMap();
            }
            break;
        case 10:
            CGoGNout <<"split vertex"<<CGoGNendl;
            if (!m_selecteds.empty() && m_selected != NIL)
            {
                Dart dit = m_selecteds.front();
                PFP::VEC3 Q = (position[myMap.phi1(m_selected)] + position[m_selected])/2.0f;
                //PFP::VEC3 c1 = Algo::Geometry::volumeCentroid<PFP>(myMap, dit, position);
                Dart dres = myMap.splitVertex(m_selecteds);
                //Dart dres = Algo::Modelisation::Tetrahedralization::splitVertex<PFP>(myMap, m_selecteds);
                position[dres] = position[dit] + Q*0.25f;
                //position[dit] = position[dit] - c1*0.5f;
                m_selecteds.clear();
                m_selected = NIL;
                updateMap();
                std::cout << "nb darts after = " << myMap.getNbDarts() << std::endl;
            }
            break;
        case 11 :
            CGoGNout <<"unsew volumes"<<CGoGNendl;
            if (m_selected != NIL)
            {
                myMap.unsewVolumes(m_selected);
                m_selected = NIL;
                updateMap();
            }
            break;
        case 12 :
            CGoGNout <<"delete volume"<<CGoGNendl;
            if (m_selected != NIL)
            {
                myMap.deleteVolume(m_selected);
                m_selected = NIL;
                updateMap();
            }
            break;
        default:
            break;
    }

    updateGL();
    dock.listOper->setCurrentRow(-1);
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}

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void MyQT::createMap(int n)
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{
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    myMap.clear(true);
    position = myMap.getAttribute<VEC3, VERTEX>("position");
    if (!position.isValid())
        position = myMap.addAttribute<VEC3, VERTEX>("position");
    Algo::Volume::Modelisation::Primitive3D<PFP> prim(myMap, position);
    prim.hexaGrid_topo(n,n,n);
    prim.embedHexaGrid(1.0f,1.0f,1.0f);
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    //	Algo::Surface::Modelisation::Polyhedron<PFP> poly(myMap, position);
    //	poly.cylinder_topo(6,1,true,true);
    //	poly.embedCylinder(6.0,6.0,5.0);
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    myMap.closeMap();
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    //	Dart d = Algo::Surface::Modelisation::embedPrism<PFP>(myMap, position, 5, true,6.0,6.0,5.0);
    //	Dart d2 = Algo::Surface::Modelisation::embedPyramid<PFP>(myMap, position, 4, true,6.0,5.0);
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    //	myMap.sewVolumes(myMap.phi2(d),d2);
    //	position[myMap.phi_1(myMap.phi2(d2))] += VEC3(9.0,-5.0,-2.5);
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    myMap.check();
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    //  bounding box of scene
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    bb = Algo::Geometry::computeBoundingBox<PFP>(myMap, position) ;
    setParamObject(bb.maxSize(), bb.center().data()) ;
    m_shift = bb.maxSize()/200.0f;
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    // first show for be sure that GL context is binded
    show();
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    // render the topo of the map without boundary darts
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    m_render_topo->setDartWidth(3.0f);
    m_render_topo->setInitialDartsColor(0.0f,0.0f,0.0f);
    updateMap();
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}

void MyQT::updateMap()
{
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#ifdef PRIMAL_TOPO
    m_render_topo->updateData<PFP>(myMap, position, m_ex1, m_ex2);
#else
    m_render_topo->updateData<PFP>(myMap, position, m_ex1,m_ex2,m_ex3);
#endif
    m_render_topo_boundary->updateDataBoundary<PFP>(myMap,position,m_ex1,m_ex2,m_shift);
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}

// initialization GL callback
void MyQT::cb_initGL()
{
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    glClearColor(1.0f,1.0f,1.0f,1.0f);
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#ifdef PRIMAL_TOPO
    m_render_topo = new Algo::Render::GL2::Topo3PrimalRender() ;
#else
    m_render_topo = new Algo::Render::GL2::Topo3Render() ;
#endif
    m_render_topo_boundary = new Algo::Render::GL2::TopoRender();
    m_render_topo_boundary->setInitialDartsColor(0.0f,0.9f,0.0f);
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    m_PlanePick = new Utils::Pickable(Utils::Pickable::GRID,1);
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    m_frame = new Utils::FrameManipulator();
    m_frame->setSize(bb.maxSize());
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    m_sh1 = static_cast<Utils::ClippingShader*>(m_render_topo->shader1());
    m_sh2 = static_cast<Utils::ClippingShader*>(m_render_topo->shader2());
    m_sh3 = static_cast<Utils::ClippingShader*>(m_render_topo_boundary->shader1());
    m_sh4 = static_cast<Utils::ClippingShader*>(m_render_topo_boundary->shader2());
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    m_sh1->insertClippingCode();
    m_sh2->insertClippingCode();
    m_sh3->insertClippingCode();
    m_sh4->insertClippingCode();
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    clip_id1 = m_sh1->addClipPlane();
    clip_id2 = m_sh2->addClipPlane();
    clip_id3 = m_sh3->addClipPlane();
    clip_id4 = m_sh4->addClipPlane();
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    m_sh1->setClipPlaneParamsAll(clip_id1, Geom::Vec3f(0,0,1), bb.center());
    m_sh2->setClipPlaneParamsAll(clip_id2, Geom::Vec3f(0,0,1), bb.center());
    m_sh3->setClipPlaneParamsAll(clip_id3, Geom::Vec3f(0,0,1), bb.center());
    m_sh4->setClipPlaneParamsAll(clip_id4, Geom::Vec3f(0,0,1), bb.center());
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}

// redraw GL callback (clear and swap already done)
void MyQT::cb_redraw()
{
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    glEnable( GL_POLYGON_OFFSET_FILL );
    glPolygonOffset( 1.0f, 1.0f );
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    m_render_topo->drawTopo();
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    //	m_render_topo_boundary->drawTopo();
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    glDisable( GL_POLYGON_OFFSET_FILL );
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    if (m_selected != NIL)
        m_render_topo->overdrawDart(m_selected, 11, 1.0f, 0.0f, 0.0f);
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    if (m_selected2 != NIL)
        m_render_topo->overdrawDart(m_selected2, 11, 0.0f, 1.0f, 0.0f);
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    for (std::vector<Dart>::iterator it = m_selecteds.begin(); it != m_selecteds.end(); ++it)
    {
        m_render_topo->overdrawDart(*it, 11, 0.0f, 0.0f, 1.0f);
    }
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    if (clip_volume && !hide_clipping)
    {
        m_frame->draw();
        m_PlanePick->draw();
    }
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}

void MyQT::cb_mousePress(int button, int x, int y)
{
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    if (Shift())
    {
        Dart d = m_render_topo->picking<PFP>(myMap, x,y/*,nb*/);
        if (button == Qt::LeftButton)
        {
            if (d != Dart::nil())
                m_selected = d;
        }
        if (button == Qt::RightButton)
        {
            if (d != Dart::nil())
                m_selected2 = d;
        }
        updateGL();

        if (hide_clipping || !clip_volume)
            return;

        m_begX = x;
        m_begY = y;

        // get ray of selection
        Geom::Vec3f rayA,rayB;
        float dist = getOrthoScreenRay(x,y,rayA,rayB);
        Geom::Vec3f AB = rayB-rayA;

        unsigned int fr_picked =0;
        // picking the frame -> axis
        fr_picked = m_frame->pick(rayA,AB,dist);

        if (fr_picked != 0)
        {
            m_pickedAxis=fr_picked;
            m_frame->highlight(m_pickedAxis);
            m_frame->storeProjection(m_pickedAxis);
            updateGL();
        }
    }

    if (Control())
    {
        if (button == Qt::LeftButton)
        {
            Dart d = m_render_topo_boundary->picking<PFP>(myMap, x,y,true);
            if (d != Dart::nil())
            {
                Dart e = myMap.phi2(d);
                std::cout << "Dart "<< d.index << " / phi2:" << e.index << std::endl;
            }
        }
        if (button == Qt::RightButton)
        {
            Dart d = m_render_topo->picking<PFP>(myMap, x,y/*, nb*/);
            if (d != Dart::nil())
            {
                m_selecteds.push_back(d);
                Dart e = myMap.phi2(d);
                std::cout << "Dart "<< d.index << " / phi2:" << e.index << std::endl;
            }
        }


        updateGL();

    }
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}

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void  MyQT::cb_mouseRelease(int /*button*/, int /*x*/, int /*y*/)
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{

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    if (hide_clipping || !clip_volume)
        return;
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    m_pickedAxis=0;
    m_frame->highlight(m_pickedAxis);
    updateGL();
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}

void  MyQT::cb_mouseMove(int buttons, int x, int y)
{
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    if (!Shift())
        return;

    if (hide_clipping || !clip_volume)
        return;

    // rotation selected ?
    if (Utils::FrameManipulator::rotationAxis(m_pickedAxis))
    {
        if (buttons&1)
        {
            float angle = m_frame->angleFromMouse(x,y,x-m_begX, y-m_begY);
            m_frame->rotate(m_pickedAxis, angle);
        }
        else if (buttons&2)
            m_frame->rotateInScreen(x-m_begX, y-m_begY);

        m_PlanePick->transfo() = m_frame->transfo();
    }
    // translation selected
    else if (Utils::FrameManipulator::translationAxis(m_pickedAxis))
    {
        if (buttons&1)
        {
            float dist =  m_frame->distanceFromMouse(x-m_begX, y-m_begY);
            m_frame->translate(m_pickedAxis, dist);
        }
        else if (buttons&2)
            m_frame->translateInScreen(x-m_begX, y-m_begY);

        m_PlanePick->transfo() = m_frame->transfo();
    }
    // scale selected
    else if (Utils::FrameManipulator::scaleAxis(m_pickedAxis) )
    {
        float scale = m_frame->scaleFromMouse(x-m_begX, y-m_begY);
        m_frame->scale(m_pickedAxis, scale );
        m_PlanePick->transfo() = m_frame->transfo();
    }

    Geom::Vec3f pos = m_PlanePick->getPosition();
    float pipo;
    Geom::Vec3f normal = m_PlanePick->getAxisScale(2, pipo); // 2 = Z axis = plane normal

    m_sh1->setClipPlaneParamsAll(clip_id1, normal, pos);
    m_sh2->setClipPlaneParamsAll(clip_id2, normal, pos);
    m_sh3->setClipPlaneParamsAll(clip_id3, normal, pos);
    m_sh4->setClipPlaneParamsAll(clip_id4, normal, pos);


    m_begX = x;
    m_begY = y;
    updateGL();
    return;
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}

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void MyQT::cb_keyPress(int keycode)
{
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    switch(keycode)
    {

        case ' ':
            m_selecteds.clear();
            m_selected=NIL;
            m_selected2=NIL;
            updateGL();
            break;
        case '2':
            createMap(2);
            updateMap();
            updateGL();
            break;
        case '3':
            createMap(3);
            updateMap();
            updateGL();
            break;
        case '4':
            createMap(4);
            updateMap();
            updateGL();
            break;
        case 'c':
            myMap.check();
            break;
        case 'a':
            m_selected = myMap.phi1(m_selected);
            updateGL();
            break;
        case 'z':
            m_selected = myMap.phi_1(m_selected);
            updateGL();
            break;
        case 'e':
            m_selected = myMap.phi2(m_selected);
            updateGL();
            break;
        case 'r':
            m_selected = myMap.phi3(m_selected);
            updateGL();
            break;
        case 'q':
            m_selected2 = myMap.phi1(m_selected2);
            updateGL();
            break;
        case 's':
            m_selected2 = myMap.phi_1(m_selected2);
            updateGL();
            break;
        case 'd':
            m_selected2 = myMap.phi2(m_selected2);
            updateGL();
            break;
        case 'f':
            m_selected2 = myMap.phi3(m_selected2);
            updateGL();
            break;
        case 'w':
            m_ex1 = 0.99f;
            m_ex2 = 0.99f;
#ifdef PRIMAL_TOPO
            m_render_topo->updateData<PFP>(myMap, position, m_ex1, m_ex2);
#else
            m_render_topo->updateData<PFP>(myMap, position, m_ex1,m_ex2,m_ex3);
#endif
            updateGL();
            break;
        case 'W':
            m_ex1 = 0.95f;
            m_ex2 = 0.95f;
#ifdef PRIMAL_TOPO
            m_render_topo->updateData<PFP>(myMap, position, m_ex1, m_ex2);
#else
            m_render_topo->updateData<PFP>(myMap, position, m_ex1,m_ex2,m_ex3);
#endif
            updateGL();
            break;
        case '-':
            if(Control())
                m_ex2 -= 0.05f;
            else
                m_ex1 -= 0.05f;
#ifdef PRIMAL_TOPO
            m_render_topo->updateData<PFP>(myMap, position, m_ex1, m_ex2);
#else
            m_render_topo->updateData<PFP>(myMap, position, m_ex1,m_ex2,m_ex3);
#endif
            updateGL();
            break;
        case '+':
            if(Control())
                m_ex2 += 0.05f;
            else
                m_ex1 += 0.05f;
#ifdef PRIMAL_TOPO
            m_render_topo->updateData<PFP>(myMap, position, m_ex1, m_ex2);
#else
            m_render_topo->updateData<PFP>(myMap, position, m_ex1,m_ex2,m_ex3);
#endif
            updateGL();
            break;
        case '*':
        {
            m_selecteds.clear();
            Dart d2 = myMap.phi_1(myMap.phi_1(m_selected));
            myMap.splitFace(m_selected,d2);
            Dart d3 = myMap.phi2(myMap.phi1(myMap.phi1(myMap.phi2(m_selected))));
            myMap.splitFace(myMap.phi1(d3),myMap.phi_1(d3));

            Dart dit = myMap.phi_1(m_selected);
            m_selecteds.push_back(dit);
            dit =  myMap.phi1(myMap.phi2(myMap.phi1(dit)));
            m_selecteds.push_back(dit);
            dit =  myMap.phi1(myMap.phi2(myMap.phi1(dit)));
            m_selecteds.push_back(dit);
            dit =  myMap.phi1(myMap.phi2(myMap.phi1(dit)));
            m_selecteds.push_back(dit);
            myMap.splitVolume(m_selecteds);

#ifdef PRIMAL_TOPO
            m_render_topo->updateData<PFP>(myMap, position, m_ex1, m_ex2);
#else
            m_render_topo->updateData<PFP>(myMap, position, m_ex1,m_ex2,m_ex3);
#endif
            updateGL();
        }
            break;
            //	case 'c':
            //		for (Dart d=myMap.begin(); d!=myMap.end(); myMap.next(d))
            //		{
            //			if (!myMap.isBoundaryMarked3(d))
            //			{
            //				int n = random();
            //				float r = float(n&0x7f)/255.0f + 0.25f;
            //				float g = float((n>>8)&0x7f)/255.0f + 0.25f;
            //				float b = float((n>>16)&0x7f)/255.0 + 0.25f;
            //				colorDarts[d] =  Geom::Vec3f(r,g,b);
            //				m_render_topo->setDartColor(d,r,g,b);
            //			}
            //		}
            //		break;
            //	case 'g':
            //		for (Dart d=myMap.begin(); d!=myMap.end(); myMap.next(d))
            //		{
            //			if (!myMap.isBoundaryMarked3(d))
            //			{
            //				colorDarts[d] =  Geom::Vec3f(0.5f,0.5f,0.5f);
            //				m_render_topo->setDartColor(d,0.5f,0.5f,0.5f);
            //			}
            //		}
            //		break;
            //
            //	case 'b':
            //		for (Dart d=myMap.begin(); d!=myMap.end(); myMap.next(d))
            //		{
            //			if (!myMap.isBoundaryMarked3(d))
            //			{
            //				colorDarts[d] =  Geom::Vec3f(0.0f,0.0f,0.0f);
            //				m_render_topo->setDartColor(d,0.0f,0.0f,0.0f);
            //			}
            //		}
            //		break;
        case Qt::Key_Up:
            if (m_selected!=NIL)
                position[m_selected][1] += m_shift;
            updateMap();
            updateGL();
            break;
        case Qt::Key_Down:
            if (m_selected!=NIL)
                position[m_selected][1] -= m_shift;
            updateMap();
            updateGL();
            break;
        case Qt::Key_Left:
            if (m_selected!=NIL)
                position[m_selected][0] -= m_shift;
            updateMap();
            updateGL();
            break;
        case Qt::Key_Right:
            if (m_selected!=NIL)
                position[m_selected][0] += m_shift;
            updateMap();
            updateGL();
            break;
    }
    updateGL();
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}

void MyQT::svg()
{
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    if (m_selected != NIL)
        m_render_topo->setDartColor(m_selected, 0.8f, 0.0f, 0.0f);
    if (m_selected2 != NIL)
        m_render_topo->setDartColor(m_selected2, 0.0f, 0.8f, 0.0f);
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    std::string filename = selectFileSave("snapshot file", ".", "(*.svg)");
    m_render_topo->svgout2D(filename, modelViewMatrix(), projectionMatrix());
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}

void MyQT::cb_Open()
{
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    std::string filters("all (*.*);; map (*.map)") ;
    std::string filename = selectFile("Open Mesh", "", filters) ;
    if (!filename.empty())
        importMesh(filename);
    updateGL();
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}

void MyQT::cb_Save()
{
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    std::string filename = selectFileSave("Export MAP file ",".","(*.map)");
    //Algo::Surface::Export::exportOFF<PFP>(myMap, position, filename.c_str()); // ???
    if(!myMap.saveMapBin(filename))
        std::cout << "could not save file : " << filename << std::endl;
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}

void MyQT::importMesh(std::string& filename)
{
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    myMap.clear(true) ;

    size_t pos = filename.rfind(".");    // position of "." in filename
    std::string extension = filename.substr(pos);
    std::vector<std::string> attrNames ;

    if (extension == std::string(".map"))
    {
        myMap.loadMapBin(filename);
        position = myMap.getAttribute<VEC3, VERTEX>("position") ;
    }
    else if(!Algo::Volume::Import::importMesh<PFP>(myMap, filename, attrNames))
    {
        std::cerr << "could not import " << filename << std::endl ;
        return ;
    }
    else
        position = myMap.getAttribute<PFP::VEC3,VERTEX>(attrNames[0]) ;

    m_selected  = NIL;
    m_selected2 = NIL;

    //	m_render_topo->updateData<PFP>(myMap, position, m_ex1,m_ex2,m_ex3/*, nb*/);
    //	m_render_topo_boundary->updateDataBoundary<PFP>(myMap,position,m_ex1,m_ex2,m_shift);

    bb = Algo::Geometry::computeBoundingBox<PFP>(myMap, position) ;
    setParamObject(bb.maxSize(), bb.center().data()) ;
    m_shift = bb.maxSize()/200.0f;

    m_frame->setSize(bb.maxSize());

    updateMap();
    updateGLMatrices() ;
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}

void MyQT::width(int w)
{
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    m_ex3 = 0.9f - 0.025f*w;
#ifdef PRIMAL_TOPO
    m_render_topo->updateData<PFP>(myMap, position, m_ex1, m_ex2);
#else
    m_render_topo->updateData<PFP>(myMap, position, m_ex1,m_ex2,m_ex3);
#endif
    updateGL();
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}