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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/imaterial.h>
#include <k3dsdk/object.h>
#include <k3dsdk/persistence.h>
#include <k3dsdk/material.h>
#include <k3dsdk/material_collection.h>
#include <k3dsdk/measurement.h>
#include <k3dsdk/mesh_source.h>
#include <k3dsdk/module.h>
#include <k3dsdk/plugins.h>
#include <k3dsdk/renderman.h>
#include <k3dsdk/transform.h>
#include <boost/random/lagged_fibonacci.hpp>
#include <iterator>
namespace libk3dmesh
{
/////////////////////////////////////////////////////////////////////////////
// starfield_implementation
class starfield_implementation :
public k3d::material_collection<k3d::mesh_source<k3d::persistent<k3d::object> > >
{
typedef k3d::material_collection<k3d::mesh_source<k3d::persistent<k3d::object> > > base;
public:
starfield_implementation(k3d::idocument& Document) :
base(Document),
m_count(k3d::init_name("count") + k3d::init_description("Count [integer]") + k3d::init_value(1000) + k3d::init_document(Document) + k3d::init_constraint(k3d::constraint::minimum(0L)) + k3d::init_precision(0) + k3d::init_step_increment(1) + k3d::init_units(typeid(k3d::measurement::scalar))),
m_radius(k3d::init_name("radius") + k3d::init_description("Radius [number]") + k3d::init_document(Document) + k3d::init_value(5.0) + k3d::init_precision(2) + k3d::init_step_increment(1) + k3d::init_units(typeid(k3d::measurement::distance))),
m_width(k3d::init_name("width") + k3d::init_description("Width [number]") + k3d::init_document(Document) + k3d::init_value(0.2) + k3d::init_precision(2) + k3d::init_step_increment(0.01) + k3d::init_units(typeid(k3d::measurement::distance)))
{
enable_serialization(k3d::persistence::proxy(m_count));
enable_serialization(k3d::persistence::proxy(m_width));
enable_serialization(k3d::persistence::proxy(m_radius));
register_property(m_width);
register_property(m_count);
register_property(m_radius);
m_material.changed_signal().connect(SigC::slot(*this, &starfield_implementation::on_reset_geometry));
m_count.changed_signal().connect(SigC::slot(*this, &starfield_implementation::on_reset_geometry));
m_width.changed_signal().connect(SigC::slot(*this, &starfield_implementation::on_reset_geometry));
m_radius.changed_signal().connect(SigC::slot(*this, &starfield_implementation::on_reset_geometry));
m_output_mesh.need_data_signal().connect(SigC::slot(*this, &starfield_implementation::on_create_geometry));
}
void on_reset_geometry()
{
m_output_mesh.reset();
}
/// Converts spherical coordinates to cartesian
k3d::vector3 to_cartesian(const double Theta, const double Phi)
{
return k3d::vector3(cos(Theta) * cos(Phi), sin(Phi), sin(Theta) * cos(Phi));
}
k3d::mesh* on_create_geometry()
{
k3d::mesh* const mesh = new k3d::mesh();
const unsigned long count = m_count.property_value();
const double width = m_width.property_value();
const double radius = m_radius.property_value();
k3d::point_group* const point_group = new k3d::point_group();
point_group->material = m_material.interface();
point_group->constant_data["constantwidth"] = static_cast<k3d::ri::real>(width);
mesh->point_groups.push_back(point_group);
boost::lagged_fibonacci607 random;
mesh->points.resize(count);
for(unsigned long i = 0; i != count; ++i)
{
mesh->points[i] = new k3d::point(radius * to_cartesian(k3d::pi_times_2() * random(), k3d::pi() * (random() - 0.5)));
}
point_group->points = mesh->points;
return mesh;
}
k3d::iplugin_factory& factory()
{
return get_factory();
}
static k3d::iplugin_factory& get_factory()
{
static k3d::plugin_factory<k3d::document_plugin<starfield_implementation>, k3d::interface_list<k3d::imesh_source > > factory(
k3d::uuid(0x084274d5,0xe39948e7, 0xb02fb840, 0xa265a05c),
"Starfield",
"Generates a cloud of points simulating a starfield",
"Objects",
k3d::iplugin_factory::EXPERIMENTAL);
return factory;
}
private:
k3d_measurement_property(long, k3d::immutable_name, k3d::change_signal, k3d::with_undo, k3d::local_storage, k3d::with_constraint) m_count;
k3d_measurement_property(double, k3d::immutable_name, k3d::change_signal, k3d::with_undo, k3d::local_storage, k3d::no_constraint) m_radius;
k3d_measurement_property(double, k3d::immutable_name, k3d::change_signal, k3d::with_undo, k3d::local_storage, k3d::no_constraint) m_width;
};
/////////////////////////////////////////////////////////////////////////////
// starfield_factory
k3d::iplugin_factory& starfield_factory()
{
return starfield_implementation::get_factory();
}
} // namespace libk3dmesh
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