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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 Carsten Haubold (CarstenHaubold@web.de)
*/
#include "nurbs_curves.h"
#include "nurbs_patches.h"
#include "utility.h"
#include <k3dsdk/data.h>
#include <k3dsdk/document_plugin_factory.h>
#include <k3dsdk/geometry.h>
#include <k3dsdk/log.h>
#include <k3dsdk/material_sink.h>
#include <k3dsdk/measurement.h>
#include <k3dsdk/mesh.h>
#include <k3dsdk/mesh_modifier.h>
#include <k3dsdk/mesh_selection_sink.h>
#include <k3dsdk/mesh_source.h>
#include <k3dsdk/module.h>
#include <k3dsdk/node.h>
#include <k3dsdk/nurbs_curve.h>
#include <k3dsdk/point3.h>
#include <k3dsdk/selection.h>
#include <boost/scoped_ptr.hpp>
#include <iostream>
#include <vector>
namespace module
{
namespace nurbs
{
class create_cap :
public k3d::mesh_selection_sink<k3d::mesh_modifier<k3d::node > >
{
typedef k3d::mesh_selection_sink<k3d::mesh_modifier<k3d::node > > base;
public:
create_cap(k3d::iplugin_factory& Factory, k3d::idocument& Document) :
base(Factory, Document),
m_delete_original(init_owner(*this) + init_name(_("delete_original")) + init_label(_("Delete the Curve")) + init_description(_("Delete the curve which was used to create the cap")) + init_value(false)),
m_u_offset(init_owner(*this) + init_name(_("u_offset")) + init_label(_("U Offset")) + init_description(_("Shift the capped curve U range by this amount, useful to rotate the UV-system on the cap")) + init_step_increment(0.01) + init_units(typeid(k3d::measurement::scalar)) + init_constraint(constraint::minimum(0.0 , constraint::maximum(1.0))) + init_value(0.0)),
m_coons(init_owner(*this) + init_name(_("coons")) + init_label(_("Coons")) + init_description(_("Use a Coons surface to fill the curve if true, use a trimmed bilinear patch otherwise")) + init_value(true))
{
m_mesh_selection.changed_signal().connect(make_update_mesh_slot());
m_delete_original.changed_signal().connect(make_update_mesh_slot());
m_u_offset.changed_signal().connect(make_update_mesh_slot());
m_coons.changed_signal().connect(make_update_mesh_slot());
}
void on_create_mesh(const k3d::mesh& Input, k3d::mesh& Output)
{
}
void on_update_mesh(const k3d::mesh& Input, k3d::mesh& Output)
{
Output = Input;
if(!Output.points.get())
return;
k3d::geometry::selection::merge(m_mesh_selection.pipeline_value(), Output);
boost::scoped_ptr<k3d::nurbs_patch::primitive> output_patches(k3d::nurbs_patch::create(Output));
k3d::mesh selected_curves_mesh;
selected_curves_mesh.points.create();
selected_curves_mesh.point_selection.create();
boost::scoped_ptr<k3d::nurbs_curve::primitive> selected_curves(k3d::nurbs_curve::create(selected_curves_mesh));
selected_curves->material.push_back(0);
visit_selected_curves(Output, selected_curve_extractor(selected_curves_mesh, *selected_curves));
// Eliminate duplicate points
replace_duplicate_points(selected_curves_mesh);
k3d::mesh::bools_t unused_points;
k3d::mesh::lookup_unused_points(selected_curves_mesh, unused_points);
k3d::mesh::delete_points(selected_curves_mesh, unused_points);
// Merge all curves that share endpoints into a single curve
k3d::mesh merged_mesh;
merged_mesh.points.create();
merged_mesh.point_selection.create();
boost::scoped_ptr<k3d::nurbs_curve::primitive> merged_curves(k3d::nurbs_curve::create(merged_mesh));
merge_connected_curves(merged_mesh, *merged_curves, selected_curves_mesh, 0);
// Eliminate duplicate points again, closing any loops
replace_duplicate_points(merged_mesh);
k3d::mesh::lookup_unused_points(merged_mesh, unused_points);
k3d::mesh::delete_points(merged_mesh, unused_points);
boost::scoped_ptr<k3d::nurbs_curve::const_primitive> const_merged_curves(k3d::nurbs_curve::validate(merged_mesh, *merged_mesh.primitives.front()));
if(m_coons.pipeline_value())
{
// Split all loops into 4 curves, and apply the Coons patch algorithm to create the caps
for(k3d::uint_t curve = 0; curve != merged_curves->curve_first_points.size(); ++curve)
{
if(!is_closed(*const_merged_curves, curve))
continue;
// Split the curve in half
k3d::mesh halved_mesh;
halved_mesh.points.create();
halved_mesh.point_selection.create();
boost::scoped_ptr<k3d::nurbs_curve::primitive> halved_curves(k3d::nurbs_curve::create(halved_mesh));
// This opens the curve
split_curve(halved_mesh, *halved_curves, merged_mesh, *const_merged_curves, curve, m_u_offset.pipeline_value());
boost::scoped_ptr<k3d::nurbs_curve::const_primitive> const_halved_curves(k3d::nurbs_curve::validate(halved_mesh, *halved_mesh.primitives.front()));
// Now we split it in two
split_curve(halved_mesh, *halved_curves, halved_mesh, *const_halved_curves, 0, 0.5);
return_if_fail(halved_curves->curve_first_points.size() == 3);
// Split both new curves
k3d::mesh quartered_mesh;
quartered_mesh.points.create();
quartered_mesh.point_selection.create();
boost::scoped_ptr<k3d::nurbs_curve::primitive> quartered_curves(k3d::nurbs_curve::create(quartered_mesh));
split_curve(quartered_mesh, *quartered_curves, halved_mesh, *const_halved_curves, 1, 0.5);
split_curve(quartered_mesh, *quartered_curves, halved_mesh, *const_halved_curves, 2, 0.5);
// Make sure the endpoints of the split curves are shared
replace_duplicate_points(quartered_mesh);
k3d::mesh::bools_t unused_points;
k3d::mesh::lookup_unused_points(quartered_mesh, unused_points);
k3d::mesh::delete_points(quartered_mesh, unused_points);
// Apply coons
boost::scoped_ptr<k3d::nurbs_curve::const_primitive> const_quartered_curves(k3d::nurbs_curve::validate(quartered_mesh, *quartered_mesh.primitives.front()));
coons_patch(Output, *output_patches, quartered_mesh, *const_quartered_curves);
}
}
else // no coons requested, use a trimmed bilinear patch instead
{
for(k3d::uint_t curve = 0; curve != merged_curves->curve_first_points.size(); ++curve)
{
if(!is_closed(*const_merged_curves, curve))
continue;
k3d::point3 origin;
k3d::normal3 normal;
k3d::vector3 u_axis;
k3d::vector3 v_axis;
k3d::mesh::points_2d_t parameter_points;
k3d::mesh::points_t points;
k3d::mesh::weights_t weights;
curve_arrays merged_arrays(merged_mesh, *const_merged_curves, curve, true);
merged_arrays.points3(points);
merged_arrays.weights(weights);
// Get the plane the curve lies in
extract_plane(origin, normal, u_axis, v_axis, parameter_points, points, m_u_offset.pipeline_value());
// Get the bounding box for the curve points in this plane
k3d::point2 bbmin, bbmax;
bbox2(bbmin, bbmax, parameter_points);
const k3d::double_t u_offset = -bbmin[0];
const k3d::double_t v_offset = -bbmin[1];
const k3d::double_t u_scale = u_axis.length() / (bbmax[0] - bbmin[0]);
const k3d::double_t v_scale = v_axis.length() / (bbmax[1] - bbmin[1]);
patch_point_data bilinear_point_data;
bilinear_point_data.points.push_back(origin + bbmin[0] * u_axis + bbmin[1] * v_axis);
bilinear_point_data.points.push_back(origin + bbmax[0] * u_axis + bbmin[1] * v_axis);
bilinear_point_data.points.push_back(origin + bbmin[0] * u_axis + bbmax[1] * v_axis);
bilinear_point_data.points.push_back(origin + bbmax[0] * u_axis + bbmax[1] * v_axis);
bilinear_point_data.weights.resize(4, 1.0);
k3d::table patch_attributes = merged_curves->curve_attributes.clone(curve, curve+1);
k3d::table parameter_attributes = merged_curves->parameter_attributes.clone(2*curve, 2*curve+2);
k3d::table_copier parameter_copier(merged_curves->parameter_attributes, parameter_attributes);
parameter_copier.push_back(2*curve);
parameter_copier.push_back(2*curve+1);
create_bilinear_patch(Output, *output_patches, bilinear_point_data, patch_attributes, parameter_attributes);
output_patches->patch_materials.push_back(merged_curves->material.back());
add_trim_curve(*output_patches, output_patches->patch_first_points.size()-1, parameter_points, weights, merged_arrays.knots, merged_curves->curve_orders[curve], u_offset, v_offset, u_scale, v_scale);
}
}
if(m_delete_original.pipeline_value())
{
delete_selected_curves(Output);
}
delete_empty_primitives(Output);
k3d::mesh::lookup_unused_points(Output, unused_points);
k3d::mesh::delete_points(Output, unused_points);
}
static k3d::iplugin_factory& get_factory()
{
static k3d::document_plugin_factory<create_cap, k3d::interface_list<k3d::imesh_source, k3d::interface_list<k3d::imesh_sink > > > factory(
k3d::uuid(0x3f8d9448, 0x5d442835, 0x7d4d0f87, 0x4c0e0593),
"NurbsCreateCap",
_("Creates a NURBS surface filling out the selected closed curves"),
"NURBS",
k3d::iplugin_factory::EXPERIMENTAL);
return factory;
}
private:
k3d_data(k3d::bool_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization) m_delete_original;
k3d_data(k3d::double_t, immutable_name, change_signal, with_undo, local_storage, with_constraint, measurement_property, with_serialization) m_u_offset;
k3d_data(k3d::bool_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization) m_coons;
};
//Create connect_curve factory
k3d::iplugin_factory& create_cap_factory()
{
return create_cap::get_factory();
}
}//namespace nurbs
} //namespace module
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