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// K-3D
// Copyright (c) 2002-2005, 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)
\author Timothy M. Shead (tshead@k-3d.com)
*/
#include <k3d-i18n-config.h>
#include <k3dsdk/basic_math.h>
#include <k3dsdk/document_plugin_factory.h>
#include <k3dsdk/imaterial.h>
#include <k3dsdk/linear_curve.h>
#include <k3dsdk/mesh_source.h>
#include <k3dsdk/material_sink.h>
#include <k3dsdk/measurement.h>
#include <k3dsdk/node.h>
#include <k3dsdk/vectors.h>
namespace module
{
namespace linear_curve
{
/////////////////////////////////////////////////////////////////////////////
// knot_curve
class knot_curve :
public k3d::material_sink<k3d::mesh_source<k3d::node > >
{
typedef k3d::material_sink<k3d::mesh_source<k3d::node > > base;
public:
knot_curve(k3d::iplugin_factory& Factory, k3d::idocument& Document) :
base(Factory, Document),
m_edge_count(init_owner(*this) + init_name("edgecount") + init_label(_("Edge count")) + init_description(_("Number of edges building up the curve")) + init_value(100) + init_constraint(constraint::minimum<k3d::int32_t>(3)) + init_step_increment(1) + init_units(typeid(k3d::measurement::scalar))),
m_meridian_wraps(init_owner(*this) + init_name("meridianwraps") + init_label(_("Meridian wraps")) + init_description(_("Number of meridian wraps")) + init_value(3) + init_constraint(constraint::minimum<k3d::int32_t>(1)) + init_step_increment(1) + init_units(typeid(k3d::measurement::scalar))),
m_longitudinal_wraps(init_owner(*this) + init_name("longitudinalwraps") + init_label(_("Longitudinal wraps")) + init_description(_("Number of longitudinal wraps")) + init_value(4) + init_constraint(constraint::minimum<k3d::int32_t>(1)) + init_step_increment(1) + init_units(typeid(k3d::measurement::scalar))),
m_scale(init_owner(*this) + init_name("scale") + init_label(_("Scale")) + init_description(_("Knot scale")) + init_value(5.0) + init_step_increment(0.1) + init_units(typeid(k3d::measurement::distance))),
m_width(init_owner(*this) + init_name("width") + init_label(_("Width")) + init_description(_("Curve width")) + init_value(0.1) + init_step_increment(0.1) + init_units(typeid(k3d::measurement::distance))),
m_wrap(init_owner(*this) + init_name("closed") + init_label(_("Closed")) + init_description(_("Closed curve (loop)")) + init_value(true))
{
m_edge_count.changed_signal().connect(k3d::hint::converter<
k3d::hint::convert<k3d::hint::any, k3d::hint::mesh_topology_changed> >(make_update_mesh_slot()));
m_wrap.changed_signal().connect(k3d::hint::converter<
k3d::hint::convert<k3d::hint::any, k3d::hint::mesh_topology_changed> >(make_update_mesh_slot()));
m_material.changed_signal().connect(k3d::hint::converter<
k3d::hint::convert<k3d::hint::any, k3d::hint::none> >(make_update_mesh_slot()));
m_width.changed_signal().connect(k3d::hint::converter<
k3d::hint::convert<k3d::hint::any, k3d::hint::none> >(make_update_mesh_slot()));
m_meridian_wraps.changed_signal().connect(k3d::hint::converter<
k3d::hint::convert<k3d::hint::any, k3d::hint::mesh_geometry_changed> >(make_update_mesh_slot()));
m_longitudinal_wraps.changed_signal().connect(k3d::hint::converter<
k3d::hint::convert<k3d::hint::any, k3d::hint::mesh_geometry_changed> >(make_update_mesh_slot()));
m_scale.changed_signal().connect(k3d::hint::converter<
k3d::hint::convert<k3d::hint::any, k3d::hint::mesh_geometry_changed> >(make_update_mesh_slot()));
}
void on_update_mesh_topology(k3d::mesh& Output)
{
const k3d::int32_t edge_count = m_edge_count.pipeline_value();
const k3d::double_t wrap = m_wrap.pipeline_value();
const k3d::double_t width = m_width.pipeline_value();
k3d::imaterial* const material = m_material.pipeline_value();
Output = k3d::mesh();
k3d::mesh::points_t& points = Output.points.create();
k3d::mesh::selection_t& point_selection = Output.point_selection.create();
points.resize(edge_count);
point_selection.assign(edge_count, 0.0);
boost::scoped_ptr<k3d::linear_curve::primitive> primitive(k3d::linear_curve::create(Output));
k3d::mesh::doubles_t& widths = primitive->constant_attributes.create<k3d::mesh::doubles_t>("width");
primitive->periodic.push_back(wrap);
primitive->material.push_back(material);
widths.push_back(width);
primitive->curve_first_points.push_back(primitive->curve_points.size());
primitive->curve_point_counts.push_back(edge_count);
primitive->curve_selections.push_back(0.0);
for(k3d::uint32_t i = 0; i != edge_count; ++i)
primitive->curve_points.push_back(i);
}
void on_update_mesh_geometry(k3d::mesh& Output)
{
const k3d::int32_t edge_count = m_edge_count.pipeline_value();
const k3d::double_t mwraps = m_meridian_wraps.pipeline_value();
const k3d::double_t lwraps = m_longitudinal_wraps.pipeline_value();
const k3d::double_t scale = m_scale.pipeline_value();
k3d::mesh::points_t& points = Output.points.writable();
for(k3d::uint32_t i = 0; i != edge_count; ++i)
{
const k3d::double_t percent = static_cast<k3d::double_t>(i) / static_cast<k3d::double_t>(edge_count);
const k3d::double_t radians = percent * k3d::pi_times_2();
const k3d::double_t mu = radians * mwraps;
k3d::point3 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;
points[i] = point * scale;
}
}
static k3d::iplugin_factory& get_factory()
{
static k3d::document_plugin_factory<knot_curve > factory(
k3d::uuid(0xb39c53a3, 0xe2fe0e32, 0x21d09384, 0xc4ed13fe),
"LinearKnot",
_("Generates a PQ-knot curve"),
"LinearCurve",
k3d::iplugin_factory::STABLE);
return factory;
}
private:
k3d_data(k3d::int32_t, immutable_name, change_signal, with_undo, local_storage, with_constraint, measurement_property, with_serialization) m_edge_count;
k3d_data(k3d::int32_t, immutable_name, change_signal, with_undo, local_storage, with_constraint, measurement_property, with_serialization) m_meridian_wraps;
k3d_data(k3d::int32_t, immutable_name, change_signal, with_undo, local_storage, with_constraint, measurement_property, with_serialization) m_longitudinal_wraps;
k3d_data(k3d::double_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, measurement_property, with_serialization) m_scale;
k3d_data(k3d::double_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, measurement_property, with_serialization) m_width;
k3d_data(k3d::bool_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization) m_wrap;
};
k3d::iplugin_factory& knot_curve_factory()
{
return knot_curve::get_factory();
}
} // namespace linear_curve
} // namespace module
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