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// K-3D
// Copyright (c) 1995-2004, 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 Timothy M. Shead (tshead@k-3d.com)
*/
#include <k3dsdk/basic_math.h>
#include <k3dsdk/color.h>
#include <k3dsdk/object.h>
#include <k3dsdk/persistence.h>
#include <k3dsdk/measurement.h>
#include <k3dsdk/mesh_filter.h>
#include <k3dsdk/module.h>
#include <k3dsdk/plugins.h>
#include <k3dsdk/utility.h>
#include <boost/multi_array.hpp>
#include <iomanip>
#include <iterator>
namespace libk3dmesh
{
/////////////////////////////////////////////////////////////////////////////
// triangulate_faces_implementation
class triangulate_faces_implementation :
public k3d::mesh_filter<k3d::persistent<k3d::object> >
{
typedef k3d::mesh_filter<k3d::persistent<k3d::object> > base;
public:
triangulate_faces_implementation(k3d::idocument& Document) :
base(Document)
{
m_input_mesh.changed_signal().connect(SigC::slot(*this, &triangulate_faces_implementation::on_reset_geometry));
m_output_mesh.need_data_signal().connect(SigC::slot(*this, &triangulate_faces_implementation::on_create_geometry));
}
void on_reset_geometry()
{
m_output_mesh.reset();
}
k3d::mesh* on_create_geometry()
{
// Get the input geometry ...
k3d::mesh* const input = m_input_mesh.property_value();
if(!input)
return 0;
// Create output geometry ...
k3d::mesh* const output = new k3d::mesh();
k3d::deep_copy(*input, *output);
update_geometry(*output);
return output;
}
/// Returns true iff the given object is selected
struct is_selected
{
bool operator()(k3d::face* const Face)
{
return Face->selected;
}
};
void update_geometry(k3d::mesh& Mesh)
{
// For each polyhedron ...
for(k3d::mesh::polyhedra_t::iterator polyhedron_iterator = Mesh.polyhedra.begin(); polyhedron_iterator != Mesh.polyhedra.end(); ++polyhedron_iterator)
{
k3d::polyhedron& polyhedron = **polyhedron_iterator;
// Remove all faces and edges ...
k3d::polyhedron::faces_t faces;
faces.swap(polyhedron.faces);
k3d::polyhedron::edges_t edges;
edges.swap(polyhedron.edges);
// For each face ...
k3d::triangulate(faces.begin(), faces.end(), std::back_inserter(polyhedron.faces), std::back_inserter(polyhedron.edges), std::back_inserter(Mesh.points));
// Get rid of the leftovers ...
std::for_each(faces.begin(), faces.end(), k3d::delete_object());
std::for_each(edges.begin(), edges.end(), k3d::delete_object());
assert_warning(is_valid(polyhedron));
}
}
k3d::iplugin_factory& factory()
{
return get_factory();
}
static k3d::iplugin_factory& get_factory()
{
static k3d::plugin_factory<
k3d::document_plugin<triangulate_faces_implementation>,
k3d::interface_list<k3d::imesh_source,
k3d::interface_list<k3d::imesh_sink > > > factory(
k3d::uuid(0x3796ae29, 0xbcc84a5c, 0xb6bae620, 0x87a9b1bd),
"TriangulateFaces",
"Converts input faces into triangles",
"Objects",
k3d::iplugin_factory::STABLE);
return factory;
}
};
/////////////////////////////////////////////////////////////////////////////
// triangulate_faces_factory
k3d::iplugin_factory& triangulate_faces_factory()
{
return triangulate_faces_implementation::get_factory();
}
} // namespace libk3dmesh
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