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// K-3D
// Copyright (c) 1995-2006, 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)
\author Romain Behar (romainbehar@yahoo.com)
*/
#include <k3dsdk/algebra.h>
#include <k3dsdk/document_plugin_factory.h>
#include <k3d-i18n-config.h>
#include <k3dsdk/measurement.h>
#include <k3dsdk/mesh_simple_deformation_modifier.h>
namespace module
{
namespace deformation
{
/////////////////////////////////////////////////////////////////////////////
// sphereize_points
class sphereize_points :
public k3d::mesh_simple_deformation_modifier
{
typedef k3d::mesh_simple_deformation_modifier base;
public:
sphereize_points(k3d::iplugin_factory& Factory, k3d::idocument& Document) :
base(Factory, Document),
m_sphere_factor(init_owner(*this) + init_name("sphere_factor") + init_label(_("Sphere factor")) + init_description(_("Sphere factor")) + init_value(1.0) + init_step_increment(0.01) + init_units(typeid(k3d::measurement::scalar)))
{
m_mesh_selection.changed_signal().connect(make_update_mesh_slot());
m_sphere_factor.changed_signal().connect(make_update_mesh_slot());
}
void on_deform_mesh(const k3d::mesh::points_t& InputPoints, const k3d::mesh::selection_t& PointSelection, k3d::mesh::points_t& OutputPoints)
{
const double sphere_factor = m_sphere_factor.pipeline_value();
const size_t point_begin = 0;
const size_t point_end = point_begin + OutputPoints.size();
double target_radius = 0.0;
for(size_t point = point_begin; point != point_end; ++point)
target_radius = std::max(target_radius, k3d::length(k3d::to_vector(InputPoints[point])));
if(0.0 == target_radius)
return;
for(size_t point = point_begin; point != point_end; ++point)
{
double radius = k3d::length(k3d::to_vector(InputPoints[point]));
if(0.0 == radius)
radius = target_radius;
OutputPoints[point] = k3d::mix(InputPoints[point], InputPoints[point] * k3d::mix(radius, target_radius, sphere_factor) / radius, PointSelection[point]);
}
}
static k3d::iplugin_factory& get_factory()
{
static k3d::document_plugin_factory<sphereize_points,
k3d::interface_list<k3d::imesh_source,
k3d::interface_list<k3d::imesh_sink > > > factory(
k3d::uuid(0x643a4bdd, 0x191e4297, 0xa9b600fc, 0x699b46f9),
"SphereizePoints",
_("Constrains points to the surface of a sphere"),
"Deformation",
k3d::iplugin_factory::STABLE);
return factory;
}
private:
k3d_data(double, immutable_name, change_signal, with_undo, local_storage, no_constraint, measurement_property, with_serialization) m_sphere_factor;
};
/////////////////////////////////////////////////////////////////////////////
// sphereize_points_factory
k3d::iplugin_factory& sphereize_points_factory()
{
return sphereize_points::get_factory();
}
} // namespace deformation
} // namespace module
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