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// K-3D
// Copyright (c) 1995-2007, Timothy M. Shead
//
// Contact: tshead@k-3d.com
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This program 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
/** \file
\author Tim Shead (tshead@k-3d.com)
\author Wladyslaw Strugala (fizws@julia.univ.gda.pl)
\author Romain Behar (romainbehar@yahoo.com)
*/
#include <k3d-i18n-config.h>
#include <k3d-version-config.h>
#include <k3dsdk/document_plugin_factory.h>
#include <k3dsdk/fstream.h>
#include <k3dsdk/mesh_writer.h>
#include <k3dsdk/node.h>
#include <k3dsdk/polyhedron.h>
#include <boost/scoped_ptr.hpp>
namespace module
{
namespace obj
{
namespace io
{
/////////////////////////////////////////////////////////////////////////////
// mesh_writer
class mesh_writer :
public k3d::mesh_writer<k3d::node >
{
typedef k3d::mesh_writer<k3d::node > base;
public:
mesh_writer(k3d::iplugin_factory& Factory, k3d::idocument& Document) :
base(Factory, Document)
{
}
static k3d::iplugin_factory& get_factory()
{
static k3d::document_plugin_factory<mesh_writer, k3d::interface_list<k3d::imesh_sink > > factory(
k3d::uuid(0x32120889, 0x85964fd3, 0x8dac7deb, 0xe3fc9676),
"OBJMeshWriter",
_("Mesh writer that saves external Wavefront (.obj) files"),
"MeshWriter",
k3d::iplugin_factory::STABLE);
return factory;
}
private:
void on_write_mesh(const k3d::mesh& Input, const k3d::filesystem::path& OutputPath, std::ostream& Output)
{
Output << "# Written by K-3D " << K3D_VERSION << "\n\n";
// Store points ...
if(Input.points)
{
const k3d::mesh::points_t& points = *Input.points;
const k3d::uint_t point_begin = 0;
const k3d::uint_t point_end = point_begin + points.size();
for(k3d::uint_t point = point_begin; point != point_end; ++point)
Output << "v " << points[point][0] << " " << points[point][1] << " " << points[point][2] << "\n";
}
// Store polyhedra ...
for(k3d::mesh::primitives_t::const_iterator primitive = Input.primitives.begin(); primitive != Input.primitives.end(); ++primitive)
{
boost::scoped_ptr<k3d::polyhedron::const_primitive> polyhedron(k3d::polyhedron::validate(Input, **primitive));
if(!polyhedron)
continue;
const k3d::uint_t face_begin = 0;
const k3d::uint_t face_end = face_begin + polyhedron->face_shells.size();
for(k3d::uint_t face = face_begin; face != face_end; ++face)
{
Output << "f";
const k3d::uint_t loop_begin = polyhedron->face_first_loops[face];
const k3d::uint_t loop_end = loop_begin + polyhedron->face_loop_counts[face];
for(k3d::uint_t loop = loop_begin; loop != loop_end; ++loop)
{
const k3d::uint_t first_edge = polyhedron->loop_first_edges[loop];
for(k3d::uint_t edge = first_edge; ; )
{
Output << " " << polyhedron->vertex_points[edge] + 1; //specs want indices starting with 1
edge = polyhedron->clockwise_edges[edge];
if(edge == first_edge)
break;
}
/** \todo Support faces with holes */
break;
}
Output << "\n";
}
}
}
};
k3d::iplugin_factory& mesh_writer_factory()
{
return mesh_writer::get_factory();
}
} // namespace io
} // namespace obj
} // namespace module
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