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// K-3D
// Copyright (c) 1995-2006, 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 Andy Gill (buzz@ucky.com)
\author Tim 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/document_plugin_factory.h>
#include <k3dsdk/measurement.h>
#include <k3dsdk/mesh_simple_deformation_modifier.h>
namespace module
{
namespace deformation
{
/////////////////////////////////////////////////////////////////////////////
// bend_points
class bend_points :
public k3d::mesh_simple_deformation_modifier
{
typedef k3d::mesh_simple_deformation_modifier base;
public:
bend_points(k3d::iplugin_factory& Factory, k3d::idocument& Document) :
base(Factory, Document),
m_angle(init_owner(*this) + init_name("angle") + init_label(_("Angle")) + init_description(_("Bend angle")) + init_value(0.0) + init_step_increment(k3d::radians(1.0)) + init_units(typeid(k3d::measurement::angle))),
m_tightness(init_owner(*this) + init_name("tightness") + init_label(_("Tightness")) + init_description(_("Bend tightness")) + init_value(0.6) + init_constraint(constraint::minimum<double>(0.0, constraint::maximum(1.0))) + init_step_increment(0.01) + init_units(typeid(k3d::measurement::scalar))),
m_position(init_owner(*this) + init_name("position") + init_label(_("Position")) + init_description(_("Bend position")) + init_value(0.5) + init_constraint(constraint::minimum<double>(0.0, constraint::maximum(1.0))) + init_step_increment(0.01) + init_units(typeid(k3d::measurement::scalar))),
m_along(init_owner(*this) + init_name("along") + init_label(_("Along")) + init_description(_("Axis to bend along")) + init_value(k3d::Z) + init_enumeration(k3d::axis_values())),
m_around(init_owner(*this) + init_name("around") + init_label(_("Around")) + init_description(_("Axis to bend around")) + init_value(k3d::X) + init_enumeration(k3d::axis_values()))
{
m_mesh_selection.changed_signal().connect(make_update_mesh_slot());
m_angle.changed_signal().connect(make_update_mesh_slot());
m_tightness.changed_signal().connect(make_update_mesh_slot());
m_position.changed_signal().connect(make_update_mesh_slot());
m_along.changed_signal().connect(make_update_mesh_slot());
m_around.changed_signal().connect(make_update_mesh_slot());
}
class bend
{
public:
bend(const k3d::point3& Origin, const k3d::point3& Min, const k3d::point3& Max, const k3d::axis Along, const k3d::axis Around, const double BendAngle, const double Tightness, const double JointPosition) :
m_Origin(Origin),
m_Min(Min),
m_Max(Max),
m_Along(Along),
m_Around(Around),
m_BendAngle(BendAngle),
m_Tightness(Tightness),
m_JointPosition(JointPosition),
m_Size(Max - Min),
m_Joint(k3d::mix(Min, Max, JointPosition)),
m_Radius(1.0 - Tightness),
m_JLower(k3d::mix(Min, Max, JointPosition - m_Radius))
{
}
const k3d::point3 operator()(k3d::point3 coords)
{
if(m_Along == m_Around || m_BendAngle == 0)
return coords;
double delta = 0;
double length = 0;
k3d::vector3 axis;
k3d::point3 offset;
k3d::point3 pivot = m_Origin;
switch(m_Along)
{
case k3d::X :
if(m_Size[0] != 0)
delta = (coords[0] - m_Min[0]) / m_Size[0];
length = m_Size[0];
if(delta > m_JointPosition - m_Radius && delta < m_JointPosition + m_Radius && m_BendAngle != 0)
{
coords[0] = m_JLower[0];
pivot[0] = m_JLower[0];
}
else
m_Origin[0] = m_Joint[0];
switch(m_Around)
{
case k3d::X :
break;
case k3d::Y :
axis = k3d::vector3(0, 1, 0);
offset = k3d::point3(0, 0, -1);
break;
case k3d::Z:
axis = k3d::vector3(0, 0, 1);
offset = k3d::point3(0, 1, 0);
break;
}
break;
case k3d::Y :
if(m_Size[1])
delta = (coords[1] - m_Min[1]) / m_Size[1];
length = m_Size[1];
if(delta > m_JointPosition - m_Radius && delta < m_JointPosition + m_Radius && m_BendAngle != 0)
{
coords[1] = m_JLower[1];
pivot[1] = m_JLower[1];
}
else
m_Origin[1] = m_Joint[1];
switch(m_Around)
{
case k3d::X :
axis = k3d::vector3(1, 0, 0);
offset = k3d::point3(0, 0, 1);
break;
case k3d::Y :
break;
case k3d::Z :
axis = k3d::vector3(0, 0, 1);
offset = k3d::point3(-1, 0, 0);
break;
}
break;
case k3d::Z:
if(m_Size[2])
delta = (coords[2] - m_Min[2]) / m_Size[2];
length = m_Size[2];
if(delta > m_JointPosition - m_Radius && delta < m_JointPosition + m_Radius && m_BendAngle != 0)
{
coords[2] = m_JLower[2];
pivot[2] = m_JLower[2];
}
else
m_Origin[2] = m_Joint[2];
switch(m_Around)
{
case k3d::X :
axis = k3d::vector3(1, 0, 0);
offset = k3d::point3(0, -1, 0);
break;
case k3d::Y :
axis = k3d::vector3(0, 1, 0);
offset = k3d::point3(1, 0, 0);
break;
case k3d::Z :
break;
}
break;
}
if(delta > m_JointPosition - m_Radius && delta < m_JointPosition + m_Radius && m_BendAngle != 0)
{
double d = (delta - (m_JointPosition - m_Radius)) / (m_Radius * 2.0);
double factor = m_Radius * length / tan(m_BendAngle * 0.5);
k3d::matrix4 rotation = k3d::rotate3(d * m_BendAngle, axis);
offset = offset * factor;
coords -= k3d::to_vector(pivot + offset);
coords = rotation * coords;
coords += k3d::to_vector(pivot + offset);
}
else if(delta >= m_JointPosition + m_Radius)
{
k3d::matrix4 rotation = k3d::rotate3(m_BendAngle, axis);
coords -= k3d::to_vector(m_Origin);
coords = rotation * coords;
coords += k3d::to_vector(m_Origin);
}
return coords;
}
private:
k3d::point3 m_Origin;
const k3d::point3 m_Min;
const k3d::point3 m_Max;
const k3d::axis m_Along;
const k3d::axis m_Around;
const double m_BendAngle;
const double m_Tightness;
const double m_JointPosition;
const k3d::vector3 m_Size;
const k3d::point3 m_Joint;
const double m_Radius;
const k3d::point3 m_JLower;
};
void on_deform_mesh(const k3d::mesh::points_t& InputPoints, const k3d::mesh::selection_t& PointSelection, k3d::mesh::points_t& OutputPoints)
{
const k3d::bounding_box3 bounds = k3d::mesh::bounds(InputPoints);
const double angle = m_angle.pipeline_value();
const double tightness = m_tightness.pipeline_value();
const double position = m_position.pipeline_value();
const k3d::axis along = m_along.pipeline_value();
const k3d::axis around = m_around.pipeline_value();
bend deformation(k3d::point3(0, 0, 0), k3d::point3(bounds.nx, bounds.ny, bounds.nz), k3d::point3(bounds.px, bounds.py, bounds.pz), along, around, angle, tightness, position);
const size_t point_begin = 0;
const size_t point_end = point_begin + OutputPoints.size();
for(size_t point = point_begin; point != point_end; ++point)
OutputPoints[point] = k3d::mix(InputPoints[point], deformation(InputPoints[point]), PointSelection[point]);
}
static k3d::iplugin_factory& get_factory()
{
static k3d::document_plugin_factory<bend_points,
k3d::interface_list<k3d::imesh_source,
k3d::interface_list<k3d::imesh_sink > > > factory(
k3d::uuid(0xfd599b45, 0x20384cd3, 0xb0af634b, 0x9372888a),
"BendPoints",
_("Bends mesh points around an axis"),
"Deformation",
k3d::iplugin_factory::STABLE);
return factory;
}
private:
k3d_data(double, immutable_name, change_signal, with_undo, local_storage, no_constraint, measurement_property, with_serialization) m_angle;
k3d_data(double, immutable_name, change_signal, with_undo, local_storage, with_constraint, measurement_property, with_serialization) m_tightness;
k3d_data(double, immutable_name, change_signal, with_undo, local_storage, with_constraint, measurement_property, with_serialization) m_position;
k3d_data(k3d::axis, immutable_name, change_signal, with_undo, local_storage, no_constraint, enumeration_property, with_serialization) m_along;
k3d_data(k3d::axis, immutable_name, change_signal, with_undo, local_storage, no_constraint, enumeration_property, with_serialization) m_around;
};
/////////////////////////////////////////////////////////////////////////////
// bend_points_factory
k3d::iplugin_factory& bend_points_factory()
{
return bend_points::get_factory();
}
} // namespace deformation
} // namespace module
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