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// K-3D
// Copyright (c) 2005, Romain Behar
//
// Contact: romainbehar@yahoo.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 Romain Behar (romainbehar@yahoo.com)
*/
#include <k3d-i18n-config.h>
#include <k3dsdk/document_plugin_factory.h>
#include <k3dsdk/geometry.h>
#include <k3dsdk/hints.h>
#include <k3dsdk/measurement.h>
#include <k3dsdk/mesh_selection_modifier.h>
#include <k3dsdk/mesh_selection_sink.h>
#include <k3dsdk/node.h>
#include <k3dsdk/polyhedron.h>
#include <boost/scoped_ptr.hpp>
namespace module
{
namespace selection
{
/////////////////////////////////////////////////////////////////////////////
// select_edge_rings
class select_edge_rings :
public k3d::mesh_selection_sink<k3d::mesh_selection_modifier<k3d::node> >
{
typedef k3d::mesh_selection_sink<k3d::mesh_selection_modifier<k3d::node> > base;
public:
select_edge_rings(k3d::iplugin_factory& Factory, k3d::idocument& Document) :
base(Factory, Document)
{
m_mesh_selection.property_changed_signal().connect(k3d::hint::converter<
k3d::hint::convert<k3d::hint::any, k3d::hint::selection_changed> >(make_update_mesh_slot()));
}
static k3d::iplugin_factory& get_factory()
{
static k3d::document_plugin_factory<select_edge_rings,
k3d::interface_list<k3d::imesh_source,
k3d::interface_list<k3d::imesh_sink> > > factory(
k3d::uuid(0x7e34dbd5, 0xbe9847b2, 0xac9f313e, 0xe1dcbb68),
"SelectEdgeRings",
_("Selects edge rings containing selected egdes"),
"Selection",
k3d::iplugin_factory::STABLE);
return factory;
}
private:
void on_update_selection(const k3d::mesh& Input, k3d::mesh& Output)
{
k3d::geometry::selection::merge(m_mesh_selection.pipeline_value(), Output);
for(k3d::mesh::primitives_t::iterator primitive = Output.primitives.begin(); primitive != Output.primitives.end(); ++primitive)
{
boost::scoped_ptr<k3d::polyhedron::primitive> polyhedron(k3d::polyhedron::validate(Output, *primitive));
if(!polyhedron)
continue;
k3d::mesh::indices_t companions;
k3d::mesh::bools_t boundary_edges;
k3d::mesh::counts_t valences;
k3d::polyhedron::create_edge_adjacency_lookup(polyhedron->vertex_points, polyhedron->clockwise_edges, boundary_edges, companions);
k3d::polyhedron::create_point_valence_lookup(Output.points->size(), polyhedron->vertex_points, valences);
const k3d::mesh::selection_t original_edge_selections = polyhedron->edge_selections;
const k3d::uint_t edge_begin = 0;
const k3d::uint_t edge_end = edge_begin + original_edge_selections.size();
for(k3d::uint_t edge = edge_begin; edge != edge_end; ++edge)
{
const k3d::double_t selection_weight = original_edge_selections[edge];
if(selection_weight)
{
for(k3d::uint_t ringedge = edge; ; )
{
polyhedron->edge_selections[ringedge] = selection_weight;
if(polyhedron->clockwise_edges[polyhedron->clockwise_edges[polyhedron->clockwise_edges[polyhedron->clockwise_edges[ringedge]]]] != ringedge) // Not a quad
break;
k3d::uint_t transverse_edge = polyhedron->clockwise_edges[polyhedron->clockwise_edges[ringedge]];
polyhedron->edge_selections[transverse_edge] = selection_weight;
if(boundary_edges[transverse_edge]) // No companion
break;
ringedge = companions[transverse_edge];
if(ringedge == edge) // loop complete
break;
}
}
}
}
}
};
/////////////////////////////////////////////////////////////////////////////
// select_edgerings_factory
k3d::iplugin_factory& select_edgerings_factory()
{
return select_edge_rings::get_factory();
}
} // namespace selection
} // namespace module
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