1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
// 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 Timothy M. Shead (tshead@k-3d.com)
*/
#include <k3d-i18n-config.h>
#include <k3dsdk/algebra.h>
#include <k3dsdk/document_plugin_factory.h>
#include <k3dsdk/measurement.h>
#include <k3dsdk/mesh_deformation_modifier.h>
#include <k3dsdk/polyhedron.h>
#include <boost/scoped_ptr.hpp>
namespace module
{
namespace deformation
{
/////////////////////////////////////////////////////////////////////////////
// smooth_points
class smooth_points :
public k3d::mesh_deformation_modifier
{
typedef k3d::mesh_deformation_modifier base;
public:
smooth_points(k3d::iplugin_factory& Factory, k3d::idocument& Document) :
base(Factory, Document),
m_smoothing(init_owner(*this) + init_name("smoothing") + init_label(_("Smoothing")) + init_description(_("Smoothing factor")) + init_value(1.0) + init_step_increment(0.1) + init_units(typeid(k3d::measurement::scalar)))
{
m_mesh_selection.changed_signal().connect(make_update_mesh_slot());
m_smoothing.changed_signal().connect(make_update_mesh_slot());
}
void on_deform_mesh(const k3d::mesh& Input, const k3d::mesh::points_t& InputPoints, const k3d::mesh::selection_t& PointSelection, k3d::mesh::points_t& OutputPoints)
{
const k3d::double_t smoothing = m_smoothing.pipeline_value();
k3d::mesh::points_t sums(InputPoints.size(), k3d::point3(0, 0, 0));
std::vector<k3d::uint_t> counts(InputPoints.size(), 0);
for(k3d::mesh::primitives_t::const_iterator primitive = Input.primitives.begin(); primitive != Input.primitives.end(); ++primitive)
{
boost::scoped_ptr<k3d::polyhedron::const_primitive> polyhedron(k3d::polyhedron::validate(Input, **primitive));
if(!polyhedron)
continue;
const k3d::uint_t edge_begin = 0;
const k3d::uint_t edge_end = edge_begin + polyhedron->clockwise_edges.size();
for(k3d::uint_t edge = edge_begin; edge != edge_end; ++edge)
{
sums[polyhedron->vertex_points[edge]] += k3d::to_vector(InputPoints[polyhedron->vertex_points[polyhedron->clockwise_edges[edge]]]);
counts[polyhedron->vertex_points[edge]] += 1;
sums[polyhedron->vertex_points[polyhedron->clockwise_edges[edge]]] += k3d::to_vector(InputPoints[polyhedron->vertex_points[edge]]);
counts[polyhedron->vertex_points[polyhedron->clockwise_edges[edge]]] += 1;
}
}
const k3d::uint_t point_begin = 0;
const k3d::uint_t point_end = point_begin + OutputPoints.size();
for(k3d::uint_t point = point_begin; point != point_end; ++point)
{
if(counts[point])
sums[point] /= counts[point];
else
sums[point] = InputPoints[point];
}
for(k3d::uint_t point = point_begin; point != point_end; ++point)
OutputPoints[point] = k3d::mix(InputPoints[point], sums[point], smoothing * PointSelection[point]);
}
static k3d::iplugin_factory& get_factory()
{
static k3d::document_plugin_factory<smooth_points,
k3d::interface_list<k3d::imesh_source,
k3d::interface_list<k3d::imesh_sink > > > factory(
k3d::uuid(0x3d6d1c61, 0x706f4968, 0x93462489, 0x9a3134a7),
"SmoothPoints",
_("Smooths mesh points by averaging their positions with their neighbors'"),
"Deformation",
k3d::iplugin_factory::STABLE);
return factory;
}
private:
k3d_data(k3d::double_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, measurement_property, with_serialization) m_smoothing;
};
/////////////////////////////////////////////////////////////////////////////
// smooth_points_factory
k3d::iplugin_factory& smooth_points_factory()
{
return smooth_points::get_factory();
}
} // namespace deformation
} // namespace module
|
