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openmesh/src/OpenMesh/Apps/Unsupported/Streaming-qt4/Client/MeshViewerWidgetT.cc
Jan Möbius 83486e0b5f Relicense to BSD 
git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@1252 fdac6126-5c0c-442c-9429-916003d36597
2015-04-28 11:33:32 +00:00

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/*===========================================================================*\
* *
* OpenMesh *
* Copyright (c) 2001-2015, RWTH-Aachen University *
* Department for Computer Graphics and Multimedia *
* All rights reserved. *
* www.openmesh.org *
* *
*---------------------------------------------------------------------------*
* This file is part of OpenMesh. *
*---------------------------------------------------------------------------*
* *
* Redistribution and use in source and binary forms, with or without *
* modification, are permitted provided that the following conditions *
* are met: *
* *
* 1. Redistributions of source code must retain the above copyright notice, *
* this list of conditions and the following disclaimer. *
* *
* 2. Redistributions in binary form must reproduce the above copyright *
* notice, this list of conditions and the following disclaimer in the *
* documentation and/or other materials provided with the distribution. *
* *
* 3. Neither the name of the copyright holder nor the names of its *
* contributors may be used to endorse or promote products derived from *
* this software without specific prior written permission. *
* *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
* *
/*===========================================================================*\
/*===========================================================================*\
* *
* $Revision$ *
* $Date$ *
* *
\*===========================================================================*/
#define OPENMESHAPPS_MESHVIEWERWIDGET_CC
//== INCLUDES =================================================================
#ifdef _MSC_VER
//# pragma warning(disable: 4267 4311)
#endif
//
#include <iostream>
#include <fstream>
#include <QImage>
#include <QKeyEvent>
#include <OpenMesh/Core/Utils/vector_cast.hh>
#include <OpenMesh/Tools/Utils/Timer.hh>
#include <OpenMesh/Apps/VDProgMesh/Streaming/Client/MeshViewerWidgetT.hh>
using namespace OpenMesh;
//== IMPLEMENTATION ==========================================================
template <typename M>
bool
MeshViewerWidgetT<M>::open_mesh(const char* _filename,
IO::Options _opt)
{
// load mesh
// calculate normals
// set scene center and radius
mesh_.request_face_normals();
mesh_.request_face_colors();
mesh_.request_vertex_normals();
mesh_.request_vertex_texcoords2D();
if ( IO::read_mesh(mesh_, _filename, _opt ))
{
opt_ = _opt;
// update face and vertex normals
if ( ! opt_.check( IO::Options::FaceNormal ) )
mesh_.update_face_normals();
if ( ! opt_.check( IO::Options::VertexNormal ) )
mesh_.update_vertex_normals();
if ( mesh_.has_vertex_colors() )
add_draw_mode("Colored");
if ( _opt.check( IO::Options::FaceColor ) )
add_draw_mode("Colored Faces");
else
mesh_.release_face_colors();
// bounding box
typename Mesh::ConstVertexIter vIt(mesh_.vertices_begin());
typename Mesh::ConstVertexIter vEnd(mesh_.vertices_end());
typedef typename Mesh::Point Point;
using OpenMesh::Vec3f;
Vec3f bbMin, bbMax;
bbMin = bbMax = OpenMesh::vector_cast<Vec3f>(mesh_.point(vIt));
for (size_t count=0; vIt!=vEnd; ++vIt, ++count)
{
bbMin.minimize( OpenMesh::vector_cast<Vec3f>(mesh_.point(vIt)));
bbMax.maximize( OpenMesh::vector_cast<Vec3f>(mesh_.point(vIt)));
if ( ! opt_.check( IO::Options::VertexColor ) &&
mesh_.has_vertex_colors() )
{
typename Mesh::Color
c( 54,
(unsigned char)(54.5+200.0*count/mesh_.n_vertices()),
54 );
mesh_.set_color( vIt, c );
}
}
// set center and radius
set_scene_pos( (bbMin+bbMax)*0.5, (bbMin-bbMax).norm()*0.5 );
// info
std::clog << mesh_.n_vertices() << " vertices, "
<< mesh_.n_edges() << " edge, "
<< mesh_.n_faces() << " faces\n";
//
{
std::clog << "Computing strips.." << std::flush;
OpenMesh::Utils::Timer t;
t.start();
compute_strips();
t.stop();
std::clog << "done [" << strips_.n_strips()
<< " strips created in " << t.as_string() << "]\n";
}
#if defined(OM_CC_MSVC)
updateGL();
#endif
return true;
}
return false;
}
//-----------------------------------------------------------------------------
template <typename M>
bool MeshViewerWidgetT<M>::open_texture( const char *_filename )
{
QImage texsrc;
QString fname = _filename;
if (texsrc.load( fname ))
{
return set_texture( texsrc );
}
return false;
}
//-----------------------------------------------------------------------------
template <typename M>
bool MeshViewerWidgetT<M>::set_texture( QImage& _texsrc )
{
std::clog << "set_texture\n";
if ( !opt_.vertex_has_texcoord() )
return false;
{
// adjust texture size: 2^k * 2^l
int tex_w, w( _texsrc.width() );
int tex_h, h( _texsrc.height() );
for (tex_w=1; tex_w <= w; tex_w <<= 1) ;
for (tex_h=1; tex_h <= h; tex_h <<= 1) ;
tex_w >>= 1;
tex_h >>= 1;
_texsrc = _texsrc.scaled( tex_w, tex_h, Qt::IgnoreAspectRatio, Qt::SmoothTransformation );
}
QImage texture( QGLWidget::convertToGLFormat ( _texsrc ) );
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glPixelStorei(GL_PACK_ROW_LENGTH, 0);
glPixelStorei(GL_PACK_SKIP_ROWS, 0);
glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
if ( tex_id_ > 0 )
{
glDeleteTextures(1, &tex_id_);
}
glGenTextures(1, &tex_id_);
glBindTexture(GL_TEXTURE_2D, tex_id_);
// glTexGenfv( GL_S, GL_SPHERE_MAP, 0 );
// glTexGenfv( GL_T, GL_SPHERE_MAP, 0 );
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, // target
0, // level
GL_RGBA, // internal format
texture.width(), // width (2^n)
texture.height(), // height (2^m)
0, // border
GL_RGBA, // format
GL_UNSIGNED_BYTE, // type
texture.bits() ); // pointer to pixels
return true;
}
//-----------------------------------------------------------------------------
template <typename M>
void
MeshViewerWidgetT<M>::draw_openmesh(const std::string& _draw_mode)
{
typename Mesh::ConstFaceIter fIt(mesh_.faces_begin()),
fEnd(mesh_.faces_end());
typename Mesh::ConstFaceVertexIter fvIt;
#if defined(OM_USE_OSG) && OM_USE_OSG
if (_draw_mode == "OpenSG Indices") // --------------------------------------
{
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, mesh_.points());
glEnableClientState(GL_NORMAL_ARRAY);
glNormalPointer(GL_FLOAT, 0, mesh_.vertex_normals());
if ( tex_id_ && mesh_.has_vertex_texcoords2D() )
{
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_FLOAT, 0, mesh_.texcoords2D());
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, tex_id_);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, tex_mode_);
}
glDrawElements(GL_TRIANGLES,
mesh_.osg_indices()->size(),
GL_UNSIGNED_INT,
&mesh_.osg_indices()->getField()[0] );
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
else
#endif
if (_draw_mode == "Wireframe") // --------------------------------------------
{
glBegin(GL_TRIANGLES);
for (; fIt!=fEnd; ++fIt)
{
fvIt = mesh_.cfv_iter(*fIt);
glVertex3fv( &mesh_.point(fvIt)[0] );
++fvIt;
glVertex3fv( &mesh_.point(fvIt)[0] );
++fvIt;
glVertex3fv( &mesh_.point(fvIt)[0] );
}
glEnd();
}
else if (_draw_mode == "Solid Flat") // -------------------------------------
{
glBegin(GL_TRIANGLES);
for (; fIt!=fEnd; ++fIt)
{
glNormal3fv( &mesh_.normal(fIt)[0] );
fvIt = mesh_.cfv_iter(*fIt);
glVertex3fv( &mesh_.point(fvIt)[0] );
++fvIt;
glVertex3fv( &mesh_.point(fvIt)[0] );
++fvIt;
glVertex3fv( &mesh_.point(fvIt)[0] );
}
glEnd();
}
else if (_draw_mode == "Solid Smooth") // -----------------------------------
{
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, mesh_.points());
glEnableClientState(GL_NORMAL_ARRAY);
glNormalPointer(GL_FLOAT, 0, mesh_.vertex_normals());
if ( tex_id_ && mesh_.has_vertex_texcoords2D() )
{
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_FLOAT, 0, mesh_.texcoords2D());
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, tex_id_);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, tex_mode_);
}
glBegin(GL_TRIANGLES);
for (; fIt!=fEnd; ++fIt)
{
fvIt = mesh_.cfv_iter(*fIt);
glArrayElement(fvIt->idx());
++fvIt;
glArrayElement(fvIt->idx());
++fvIt;
glArrayElement(fvIt->idx());
}
glEnd();
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
if ( tex_id_ && mesh_.has_vertex_texcoords2D() )
{
glDisable(GL_TEXTURE_2D);
}
}
else if (_draw_mode == "Colored") // ----------------------------------------
{
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, mesh_.points());
glEnableClientState(GL_NORMAL_ARRAY);
glNormalPointer(GL_FLOAT, 0, mesh_.vertex_normals());
if ( mesh_.has_vertex_colors() )
{
glEnableClientState( GL_COLOR_ARRAY );
glColorPointer(3, GL_UNSIGNED_BYTE, 0,mesh_.vertex_colors());
}
glBegin(GL_TRIANGLES);
for (; fIt!=fEnd; ++fIt)
{
fvIt = mesh_.cfv_iter(*fIt);
glArrayElement(fvIt->idx());
++fvIt;
glArrayElement(fvIt->idx());
++fvIt;
glArrayElement(fvIt->idx());
}
glEnd();
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
}
else if (_draw_mode == "Colored Faces") // ----------------------------------
{
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, mesh_.points());
glEnableClientState(GL_NORMAL_ARRAY);
glNormalPointer(GL_FLOAT, 0, mesh_.vertex_normals());
glBegin(GL_TRIANGLES);
for (; fIt!=fEnd; ++fIt)
{
glColor( *fIt );
fvIt = mesh_.cfv_iter(*fIt);
glArrayElement(fvIt->idx());
++fvIt;
glArrayElement(fvIt->idx());
++fvIt;
glArrayElement(fvIt->idx());
}
glEnd();
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
}
else if ( _draw_mode == "Strips'n VertexArrays" ) // -------------------------
{
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, mesh_.points());
glEnableClientState(GL_NORMAL_ARRAY);
glNormalPointer(GL_FLOAT, 0, mesh_.vertex_normals());
if ( tex_id_ && mesh_.has_vertex_texcoords2D() )
{
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_FLOAT, 0, mesh_.texcoords2D());
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, tex_id_);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, tex_mode_);
}
typename MyStripifier::StripsIterator strip_it = strips_.begin();
typename MyStripifier::StripsIterator strip_last = strips_.end();
// Draw all strips
for (; strip_it!=strip_last; ++strip_it)
{
glDrawElements(GL_TRIANGLE_STRIP,
strip_it->size(), GL_UNSIGNED_INT, &(*strip_it)[0] );
}
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
else if (_draw_mode == "Show Strips" && strips_.is_valid() ) // -------------
{
typename MyStripifier::StripsIterator strip_it = strips_.begin();
typename MyStripifier::StripsIterator strip_last = strips_.end();
float cmax = 256.0f;
int range = 220;
int base = (int)cmax-range;
int drcol = 13;
int dgcol = 31;
int dbcol = 17;
int rcol=0, gcol=dgcol, bcol=dbcol+dbcol;
// Draw all strips
for (; strip_it!=strip_last; ++strip_it)
{
typename MyStripifier::IndexIterator idx_it = strip_it->begin();
typename MyStripifier::IndexIterator idx_last = strip_it->end();
rcol = (rcol+drcol) % range;
gcol = (gcol+dgcol) % range;
bcol = (bcol+dbcol) % range;
glBegin(GL_TRIANGLE_STRIP);
glColor3f((rcol+base)/cmax, (gcol+base)/cmax, (bcol+base)/cmax);
for ( ;idx_it != idx_last; ++idx_it )
glVertex3fv( &mesh_.point( OM_TYPENAME Mesh::VertexHandle(*idx_it))[0] );
glEnd();
}
glColor3f(1.0, 1.0, 1.0);
}
else if( _draw_mode == "Points" ) // -----------------------------------------
{
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, mesh_.points());
glDrawArrays( GL_POINTS, 0, mesh_.n_vertices() );
glDisableClientState(GL_VERTEX_ARRAY);
}
}
//-----------------------------------------------------------------------------
template <typename M>
void
MeshViewerWidgetT<M>::draw_scene(const std::string& _draw_mode)
{
if ( ! mesh_.n_vertices() )
return;
#if defined(OM_USE_OSG) && OM_USE_OSG
else if ( _draw_mode == "OpenSG Indices")
{
glEnable(GL_LIGHTING);
glShadeModel(GL_SMOOTH);
draw_openmesh( _draw_mode );
}
else
#endif
if ( _draw_mode == "Points" )
{
glDisable(GL_LIGHTING);
draw_openmesh(_draw_mode);
}
else if (_draw_mode == "Wireframe")
{
glDisable(GL_LIGHTING);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
draw_openmesh(_draw_mode);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
}
else if ( _draw_mode == "Hidden-Line" )
{
glEnable(GL_LIGHTING);
glShadeModel(GL_SMOOTH);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glDepthRange(0.01, 1.0);
draw_openmesh("Solid Smooth");
glDisable(GL_LIGHTING);
glPolygonMode( GL_FRONT_AND_BACK, GL_LINE);
glColor4f( 0.4f, 0.4f, 0.4f, 1.0f );
glDepthRange( 0.0, 1.0 );
draw_openmesh( "Wireframe" );
glPolygonMode( GL_FRONT_AND_BACK, GL_FILL);
}
else if (_draw_mode == "Solid Flat")
{
glEnable(GL_LIGHTING);
glShadeModel(GL_FLAT);
draw_openmesh(_draw_mode);
}
else if (_draw_mode == "Solid Smooth" ||
_draw_mode == "Strips'n VertexArrays" )
{
glEnable(GL_LIGHTING);
glShadeModel(GL_SMOOTH);
draw_openmesh(_draw_mode);
}
else if (_draw_mode == "Show Strips")
{
glDisable(GL_LIGHTING);
draw_openmesh(_draw_mode);
}
else if (_draw_mode == "Colored" )
{
glDisable(GL_LIGHTING);
draw_openmesh(_draw_mode);
}
else if (_draw_mode == "Colored Faces" )
{
glDisable(GL_LIGHTING);
draw_openmesh(_draw_mode);
}
}
//-----------------------------------------------------------------------------
#define TEXMODE( Mode ) \
tex_mode_ = Mode; std::cout << "Texture mode set to " << #Mode << std::endl
template <typename M>
void
MeshViewerWidgetT<M>::keyPressEvent( QKeyEvent* _event)
{
switch( _event->key() )
{
case Qt::Key_I:
std::cout << "\n# Vertices : " << mesh_.n_vertices() << std::endl;
std::cout << "# Edges : " << mesh_.n_edges() << std::endl;
std::cout << "# Faces : " << mesh_.n_faces() << std::endl;
std::cout << "binary input : " << opt_.check(opt_.Binary) << std::endl;
std::cout << "swapped input : " << opt_.check(opt_.Swap) << std::endl;
std::cout << "vertex normal : "
<< opt_.check(opt_.VertexNormal) << std::endl;
std::cout << "vertex texcoord: "
<< opt_.check(opt_.VertexTexCoord) << std::endl;
std::cout << "vertex color : "
<< opt_.check(opt_.VertexColor) << std::endl;
this->QGLViewerWidget::keyPressEvent( _event );
break;
case Qt::Key_T:
switch( tex_mode_ )
{
case GL_MODULATE: TEXMODE(GL_DECAL); break;
case GL_DECAL: TEXMODE(GL_BLEND); break;
case GL_BLEND: TEXMODE(GL_REPLACE); break;
case GL_REPLACE: TEXMODE(GL_MODULATE); break;
}
updateGL();
break;
default:
this->QGLViewerWidget::keyPressEvent( _event );
}
}
#undef TEXMODE
//=============================================================================
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