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// K-3D
// Copyright (c) 1995-2008, 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 <k3d-i18n-config.h>
#include <k3dsdk/algebra.h>
#include <k3dsdk/axis.h>
#include <k3dsdk/bounding_box3.h>
#include <k3dsdk/document_plugin_factory.h>
#include <k3dsdk/measurement.h>
#include <k3dsdk/mesh_simple_deformation_modifier.h>
#include <k3dsdk/parallel/blocked_range.h>
#include <k3dsdk/parallel/parallel_for.h>
#include <k3dsdk/parallel/threads.h>
namespace module
{
namespace deformation
{
/////////////////////////////////////////////////////////////////////////////
// twist_points
class twist_points :
public k3d::mesh_simple_deformation_modifier
{
typedef k3d::mesh_simple_deformation_modifier base;
public:
twist_points(k3d::iplugin_factory& Factory, k3d::idocument& Document) :
base(Factory, Document),
m_axis(init_owner(*this) + init_name("axis") + init_label(_("Axis")) + init_description(_("Twist around given axis")) + init_value(k3d::Z) + init_enumeration(k3d::axis_values())),
m_angle(init_owner(*this) + init_name("angle") + init_label(_("Angle")) + init_description(_("Twist angle")) + init_value(0.0) + init_step_increment(k3d::radians(1.0)) + init_units(typeid(k3d::measurement::angle)))
{
m_mesh_selection.changed_signal().connect(make_update_mesh_slot());
m_axis.changed_signal().connect(make_update_mesh_slot());
m_angle.changed_signal().connect(make_update_mesh_slot());
}
class worker
{
public:
worker(const k3d::mesh::points_t& InputPoints, const k3d::mesh::selection_t& PointSelection, k3d::mesh::points_t& OutputPoints, const k3d::axis Axis, const double Size, const k3d::point3& Angles) :
input_points(InputPoints),
point_selection(PointSelection),
output_points(OutputPoints),
axis(Axis),
size(Size),
angles(Angles)
{
}
void operator()(const k3d::parallel::blocked_range<k3d::uint_t>& range) const
{
const k3d::uint_t point_begin = range.begin();
const k3d::uint_t point_end = range.end();
for(k3d::uint_t point = point_begin; point != point_end; ++point)
{
const double twist = input_points[point][axis] / size;
output_points[point] = k3d::mix(input_points[point], k3d::rotate3(angles * twist) * input_points[point], point_selection[point]);
}
}
private:
const k3d::mesh::points_t& input_points;
const k3d::mesh::selection_t& point_selection;
k3d::mesh::points_t& output_points;
const k3d::axis axis;
const double size;
const k3d::point3& angles;
};
void on_deform_mesh(const k3d::mesh::points_t& InputPoints, const k3d::mesh::selection_t& PointSelection, k3d::mesh::points_t& OutputPoints)
{
const k3d::axis axis = m_axis.pipeline_value();
const double angle = m_angle.pipeline_value();
const k3d::bounding_box3 bounds = k3d::mesh::bounds(InputPoints);
double size = 0.0;
k3d::point3 angles;
switch(axis)
{
case k3d::X:
size = std::max(std::abs(bounds.px), std::abs(bounds.nx));
angles = k3d::point3(angle, 0, 0);
break;
case k3d::Y:
size = std::max(std::abs(bounds.py), std::abs(bounds.ny));
angles = k3d::point3(0, angle, 0);
break;
case k3d::Z:
size = std::max(std::abs(bounds.pz), std::abs(bounds.nz));
angles = k3d::point3(0, 0, angle);
break;
default:
assert_not_reached();
}
if(0.0 == size)
return;
k3d::parallel::parallel_for(
k3d::parallel::blocked_range<k3d::uint_t>(0, OutputPoints.size(), k3d::parallel::grain_size()),
worker(InputPoints, PointSelection, OutputPoints, axis, size, angles));
}
static k3d::iplugin_factory& get_factory()
{
static k3d::document_plugin_factory<twist_points,
k3d::interface_list<k3d::imesh_source,
k3d::interface_list<k3d::imesh_sink > > > factory(
k3d::uuid(0x76051829, 0x66b54dbf, 0xb67d7719, 0xb2e2596f),
"TwistPoints",
_("Twists mesh points along an axis"),
"Deformation",
k3d::iplugin_factory::STABLE);
return factory;
}
private:
k3d_data(k3d::axis, immutable_name, change_signal, with_undo, local_storage, no_constraint, enumeration_property, with_serialization) m_axis;
k3d_data(double, immutable_name, change_signal, with_undo, local_storage, no_constraint, measurement_property, with_serialization) m_angle;
};
/////////////////////////////////////////////////////////////////////////////
// twist_points_factory
k3d::iplugin_factory& twist_points_factory()
{
return twist_points::get_factory();
}
} // namespace deformation
} // namespace module
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