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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 Romain Behar (romainbehar@yahoo.com)
*/
#include <k3dsdk/basic_math.h>
#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/vectors.h>
namespace libk3dmesh
{
/////////////////////////////////////////////////////////////////////////////
// knot_curve_implementation
class knot_curve_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:
knot_curve_implementation(k3d::idocument& Document) :
base(Document),
m_edge_count(k3d::init_name("edgecount") + k3d::init_description("Edge count [integer]") + k3d::init_value(100) + k3d::init_constraint(k3d::constraint::minimum(3UL)) + k3d::init_precision(0) + k3d::init_step_increment(1) + k3d::init_units(typeid(k3d::measurement::scalar)) + k3d::init_document(Document)),
m_meridian_wraps(k3d::init_name("meridianwraps") + k3d::init_description("Meridian wraps [integer]") + k3d::init_value(3) + k3d::init_constraint(k3d::constraint::minimum(1UL)) + k3d::init_precision(0) + k3d::init_step_increment(1) + k3d::init_units(typeid(k3d::measurement::scalar)) + k3d::init_document(Document)),
m_longitudinal_wraps(k3d::init_name("longitudinalwraps") + k3d::init_description("Longitudinal wraps [integer]") + k3d::init_value(4) + k3d::init_constraint(k3d::constraint::minimum(1UL)) + k3d::init_precision(0) + k3d::init_step_increment(1) + k3d::init_units(typeid(k3d::measurement::scalar)) + k3d::init_document(Document)),
m_scale(k3d::init_name("scale") + k3d::init_description("Scale [number]") + k3d::init_value(5.0) + k3d::init_precision(2) + k3d::init_step_increment(0.1) + k3d::init_units(typeid(k3d::measurement::distance)) + k3d::init_document(Document)),
m_width(k3d::init_name("width") + k3d::init_description("Width [number]") + k3d::init_value(0.1) + k3d::init_precision(2) + k3d::init_step_increment(0.1) + k3d::init_units(typeid(k3d::measurement::distance)) + k3d::init_document(Document)),
m_wrap(k3d::init_name("closed") + k3d::init_description("Closed Curve [boolean]") + k3d::init_value(true) + k3d::init_document(Document))
{
enable_serialization(k3d::persistence::proxy(m_edge_count));
enable_serialization(k3d::persistence::proxy(m_meridian_wraps));
enable_serialization(k3d::persistence::proxy(m_longitudinal_wraps));
enable_serialization(k3d::persistence::proxy(m_scale));
enable_serialization(k3d::persistence::proxy(m_width));
enable_serialization(k3d::persistence::proxy(m_wrap));
register_property(m_edge_count);
register_property(m_meridian_wraps);
register_property(m_longitudinal_wraps);
register_property(m_scale);
register_property(m_width);
register_property(m_wrap);
m_material.changed_signal().connect(SigC::slot(*this, &knot_curve_implementation::on_reset_geometry));
m_edge_count.changed_signal().connect(SigC::slot(*this, &knot_curve_implementation::on_reset_geometry));
m_meridian_wraps.changed_signal().connect(SigC::slot(*this, &knot_curve_implementation::on_reset_geometry));
m_longitudinal_wraps.changed_signal().connect(SigC::slot(*this, &knot_curve_implementation::on_reset_geometry));
m_scale.changed_signal().connect(SigC::slot(*this, &knot_curve_implementation::on_reset_geometry));
m_width.changed_signal().connect(SigC::slot(*this, &knot_curve_implementation::on_reset_geometry));
m_wrap.changed_signal().connect(SigC::slot(*this, &knot_curve_implementation::on_reset_geometry));
m_output_mesh.need_data_signal().connect(SigC::slot(*this, &knot_curve_implementation::on_create_geometry));
}
void on_reset_geometry()
{
m_output_mesh.reset();
}
k3d::mesh* on_create_geometry()
{
const unsigned long edges = m_edge_count.property_value();
const double mwraps = m_meridian_wraps.property_value();
const double lwraps = m_longitudinal_wraps.property_value();
const double scale = m_scale.property_value();
const double width = m_width.property_value();
const double wrap = m_wrap.property_value();
// Create a linear curve k3d::mesh ...
std::auto_ptr<k3d::mesh> mesh(new k3d::mesh());
k3d::linear_curve_group* const group = new k3d::linear_curve_group();
group->material = m_material.interface();
group->wrap = wrap;
group->constant_data["width"] = width;
k3d::linear_curve* const curve = new k3d::linear_curve();
group->curves.push_back(curve);
mesh->linear_curve_groups.push_back(group);
// Create the curve ...
for(unsigned long n = 0; n != edges; n++)
{
const double percent = static_cast<double>(n) / static_cast<double>(edges);
const double radians = percent * k3d::pi_times_2();
const double mu = radians * mwraps;
k3d::vector3 point;
point[0] = cos(mu) * (1 + cos(lwraps * mu / mwraps) / 2.0);
point[1] = sin(mu) * (1 + cos(lwraps * mu / mwraps) / 2.0);
point[2] = sin(lwraps * mu / mwraps) / 2.0;
k3d::point* const p = new k3d::point(point * scale);
mesh->points.push_back(p);
curve->control_points.push_back(p);
}
return mesh.release();
}
k3d::iplugin_factory& factory()
{
return get_factory();
}
static k3d::iplugin_factory& get_factory()
{
static k3d::plugin_factory<k3d::document_plugin<knot_curve_implementation> > factory(
k3d::uuid(0xb39c53a3, 0xe2fe0e32, 0x21d09384, 0xc4ed13fe),
"KnotCurve",
"Generates a PQ-knot curve",
"Objects",
k3d::iplugin_factory::STABLE);
return factory;
}
private:
k3d_measurement_property(unsigned long, k3d::immutable_name, k3d::change_signal, k3d::with_undo, k3d::local_storage, k3d::with_constraint) m_edge_count;
k3d_measurement_property(unsigned long, k3d::immutable_name, k3d::change_signal, k3d::with_undo, k3d::local_storage, k3d::with_constraint) m_meridian_wraps;
k3d_measurement_property(unsigned long, k3d::immutable_name, k3d::change_signal, k3d::with_undo, k3d::local_storage, k3d::with_constraint) m_longitudinal_wraps;
k3d_measurement_property(double, k3d::immutable_name, k3d::change_signal, k3d::with_undo, k3d::local_storage, k3d::no_constraint) m_scale;
k3d_measurement_property(double, k3d::immutable_name, k3d::change_signal, k3d::with_undo, k3d::local_storage, k3d::no_constraint) m_width;
k3d_data_property(bool, k3d::immutable_name, k3d::change_signal, k3d::with_undo, k3d::local_storage, k3d::no_constraint) m_wrap;
};
k3d::iplugin_factory& knot_curve_factory()
{
return knot_curve_implementation::get_factory();
}
} // namespace libk3dmesh
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