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DecimaterViewerWidget.cc
1 /* ========================================================================= *
2 * *
3 * OpenMesh *
4 * Copyright (c) 2001-2015, RWTH-Aachen University *
5 * Department of Computer Graphics and Multimedia *
6 * All rights reserved. *
7 * www.openmesh.org *
8 * *
9 *---------------------------------------------------------------------------*
10 * This file is part of OpenMesh. *
11 *---------------------------------------------------------------------------*
12 * *
13 * Redistribution and use in source and binary forms, with or without *
14 * modification, are permitted provided that the following conditions *
15 * are met: *
16 * *
17 * 1. Redistributions of source code must retain the above copyright notice, *
18 * this list of conditions and the following disclaimer. *
19 * *
20 * 2. Redistributions in binary form must reproduce the above copyright *
21 * notice, this list of conditions and the following disclaimer in the *
22 * documentation and/or other materials provided with the distribution. *
23 * *
24 * 3. Neither the name of the copyright holder nor the names of its *
25 * contributors may be used to endorse or promote products derived from *
26 * this software without specific prior written permission. *
27 * *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
31 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
32 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
33 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
34 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
35 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
36 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
37 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
38 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
39 * *
40 * ========================================================================= */
41
42 /*===========================================================================*\
43 * *
44 * $Revision$ *
45 * $Date$ *
46 * *
47 \*===========================================================================*/
48
49
50 //== INCLUDES =================================================================
51
52 #ifdef _MSC_VER
53 # pragma warning(disable: 4267 4311)
54 #endif
55
56 #include <iostream>
57 #include <fstream>
58
59 #include <qapplication.h>
60 #include <qdatetime.h>
61
62 #include <OpenMesh/Core/IO/BinaryHelper.hh>
63 #include <OpenMesh/Core/IO/MeshIO.hh>
64
65 #include <OpenMesh/Apps/Decimating/DecimaterViewerWidget.hh>
66
67
68 //== IMPLEMENTATION ==========================================================
69
70
71 //-----------------------------------------------------------------------------
72
73 void DecimaterViewerWidget::keyPressEvent(QKeyEvent* _event)
74 {
75 switch (_event->key())
76 {
77 case Key_H:
78 std::cout << "Press '+' to increase the number of decimating steps\n"
79 << "Press '-' to decrease the number of decimating steps\n"
80 << "Press 'd' to perform the set number of decimating steps\n"
81 << "Press 'S' to save the mesh to 'result.off'\n"
82 << "Press 'q' or 'Esc' quit the application" << std::endl;
83 break;
84 case Key_D:
85 {
86 int rc;
87 if ( (rc=decimater_->decimate(steps_)) )
88 {
89 decimater_->mesh().garbage_collection();
90 std::cout << rc << " vertices removed!\n";
91 updateGL();
92 }
93 else
94 std::cout << "Decimation failed\n";
95 break;
96 }
97
98 case Key_Plus:
99 ++steps_;
100 steps_ = std::min( steps_ , (size_t)( mesh_.n_vertices() / 10 ) );
101 updateGL();
102 std::cout << "# decimating steps increased to " << steps_ << std::endl;
103 break;
104
105 case Key_Minus:
106 --steps_;
107 steps_ = std::max( steps_ , size_t(1) );
108 updateGL();
109 std::cout << "# decimating steps increased to " << steps_ << std::endl;
110 break;
111
112 case Key_S:
113 {
114 OpenMesh::IO::Options opt;
115
116 opt += OpenMesh::IO::Options::Binary;
117
118 if (OpenMesh::IO::write_mesh( mesh(), "result.off", opt ))
119 std::cout << "mesh saved in 'result.off'\n";
120 }
121 break;
122
123 case Key_Q:
124 qApp->quit();
125 break;
126 case Key_Escape:
127 qApp->quit();
128 break;
129 default:
130 this->inherited_t::keyPressEvent(_event);
131 break;
132 }
133 }
134
135 void DecimaterViewerWidget::animate( void )
136 {
137 // updateGL();
138 // timer_->start(300, true);
139 }
140
141 //=============================================================================
OpenMesh::IO::Options
Set options for reader/writer modules.
Definition: Options.hh:95
OpenMesh::IO::Options::Binary
Set binary mode for r/w.
Definition: Options.hh:105
OpenMesh::IO::write_mesh
bool write_mesh(const Mesh &_mesh, const std::string &_filename, Options _opt=Options::Default, std::streamsize _precision=6)
Write a mesh to the file _filename.
Definition: MeshIO.hh:199