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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
\brief Implements the RAWWriter which exports polygons as raw ASCII files
\author Romain Behar (romainbehar@yahoo.com)
*/
#include <k3dsdk/classes.h>
#include <k3dsdk/iapplication.h>
#include <k3dsdk/ideletable.h>
#include <k3dsdk/idocument.h>
#include <k3dsdk/ifile_format.h>
#include <k3dsdk/igeometry_write_format.h>
#include <k3dsdk/imesh_source.h>
#include <k3dsdk/iobject.h>
#include <k3dsdk/iobject_collection.h>
#include <k3dsdk/mesh.h>
#include <k3dsdk/module.h>
#include <k3dsdk/objects.h>
#include <k3dsdk/property.h>
#include <k3dsdk/result.h>
#include <k3dsdk/string_modifiers.h>
#include <k3dsdk/utility.h>
#include <boost/filesystem/fstream.hpp>
#include <boost/filesystem/path.hpp>
#include <map>
namespace libk3dgeometry
{
typedef std::vector<k3d::point*> point_collection_t;
typedef std::vector<unsigned long> polygon_t;
typedef std::vector<polygon_t> polygons_t;
class raw_write
{
public:
raw_write(k3d::idocument& Document, std::ostream& Stream) :
m_Document(Document),
m_Stream(Stream)
{
}
void operator()(k3d::iobject* const Object)
{
k3d::imesh_source* const mesh_source = dynamic_cast<k3d::imesh_source*>(Object);
return_if_fail(mesh_source);
k3d::mesh* const Mesh = boost::any_cast<k3d::mesh*>(k3d::get_property_value(m_Document.dag(), mesh_source->mesh_source_output()));
return_if_fail(Mesh);
// Get the collection of points ...
k3d::mesh::points_t points;
std::copy(Mesh->points.begin(), Mesh->points.end(), std::back_inserter(points));
// Create a mapping of points-to-zero-based-indices ...
std::map<k3d::point*, unsigned long> point_map;
unsigned long index = 0;
for(point_collection_t::iterator point = points.begin(); point != points.end(); ++point)
point_map[*point] = index++;
// Build polygon collection ...
polygons_t polygons;
for(k3d::mesh::polyhedra_t::const_iterator polyhedron = Mesh->polyhedra.begin(); polyhedron != Mesh->polyhedra.end(); polyhedron++)
for(k3d::polyhedron::faces_t::const_iterator face = (*polyhedron)->faces.begin(); face != (*polyhedron)->faces.end(); face++)
{
polygon_t polygon;
k3d::split_edge* first = (*face)->first_edge;
// Skip empty faces
if(!first)
continue;
polygon.push_back(point_map[first->vertex]);
k3d::split_edge* current_edge = first->face_clockwise;
while(current_edge)
{
polygon.push_back(point_map[current_edge->vertex]);
current_edge = current_edge->face_clockwise;
if(current_edge == first)
break;
}
polygons.push_back(polygon);
}
// Write object info and header
m_Stream << "# object: " << Object->name() << std::endl;
m_Stream << "# num points [" << points.size() << "] num polygons [" << polygons.size() << "]" << std::endl;
m_Stream << points.size() << " " << polygons.size() << std::endl;
// Write points
m_Stream << "# points" << std::endl;
for(point_collection_t::iterator point = points.begin(); point != points.end(); ++point)
{
const k3d::vector3 coords = (*point)->position;
m_Stream << coords[0] << " " << coords[1] << " " << coords[2] << std::endl;
}
// Write polygons
m_Stream << "# polygons" << std::endl;
for(polygons_t::iterator polygon = polygons.begin(); polygon != polygons.end(); ++polygon)
{
for(polygon_t::iterator point = polygon->begin(); point != polygon->end(); ++point)
m_Stream << *point << " ";
m_Stream << std::endl;
}
}
private:
k3d::idocument& m_Document;
std::ostream& m_Stream;
};
/////////////////////////////////////////////////////////////////////////////
// raw_writer_implementation
class raw_writer_implementation :
public k3d::ifile_format,
public k3d::igeometry_write_format,
public k3d::ideletable
{
public:
unsigned long priority()
{
return 0;
}
bool query_can_handle(const boost::filesystem::path& FilePath)
{
return "raw" == k3d::file_extension(FilePath);
}
bool pre_write(k3d::idocument& Document, const boost::filesystem::path& FilePath)
{
return true;
}
bool write_options(k3d::idocument& Document, const boost::filesystem::path& FilePath)
{
return true;
}
bool write_file(k3d::idocument& Document, const boost::filesystem::path& FilePath);
k3d::iplugin_factory& factory()
{
return get_factory();
}
static k3d::iplugin_factory& get_factory()
{
static k3d::plugin_factory<k3d::application_plugin<raw_writer_implementation>, k3d::interface_list<k3d::igeometry_write_format> > factory(
k3d::uuid(0xd3bf8f81, 0x44934ebc, 0x80e9c088, 0xe5c0c4fc),
"RAWWriter",
"raw ASCII format ( .raw )",
"");
return factory;
}
};
bool raw_writer_implementation::write_file(k3d::idocument& Document, const boost::filesystem::path& FilePath)
{
// Try to open the output file ...
boost::filesystem::ofstream file(FilePath);
return_val_if_fail(file.good(), false);
file << "# Written by K-3D" << std::endl;
// Get the set of available meshes ...
k3d::objects_t meshes(k3d::find_objects(Document.objects(), k3d::classes::MeshInstance()));
// Write meshes ...
std::for_each(meshes.begin(), meshes.end(), raw_write(Document, file));
return true;
}
k3d::iplugin_factory& raw_writer_factory()
{
return raw_writer_implementation::get_factory();
}
} // namespace libk3dgeometry
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