Developer Documentation

DecimaterViewerWidget.cc
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41
42
43
44
45 //== INCLUDES =================================================================
46
47 #ifdef _MSC_VER
48 # pragma warning(disable: 4267 4311)
49 #endif
50
51 #include <iostream>
52 #include <fstream>
53
54 #include <qapplication.h>
55 #include <qdatetime.h>
56
57 #include <OpenMesh/Core/IO/BinaryHelper.hh>
58 #include <OpenMesh/Core/IO/MeshIO.hh>
59
60 #include <OpenMesh/Apps/Decimating/DecimaterViewerWidget.hh>
61
62
63 //== IMPLEMENTATION ==========================================================
64
65
66 //-----------------------------------------------------------------------------
67
68 void DecimaterViewerWidget::keyPressEvent(QKeyEvent* _event)
69 {
70 switch (_event->key())
71 {
72 case Key_H:
73 std::cout << "Press '+' to increase the number of decimating steps\n"
74 << "Press '-' to decrease the number of decimating steps\n"
75 << "Press 'd' to perform the set number of decimating steps\n"
76 << "Press 'S' to save the mesh to 'result.off'\n"
77 << "Press 'q' or 'Esc' quit the application" << std::endl;
78 break;
79 case Key_D:
80 {
81 int rc;
82 if ( (rc=decimater_->decimate(steps_)) )
83 {
84 decimater_->mesh().garbage_collection();
85 std::cout << rc << " vertices removed!\n";
86 updateGL();
87 }
88 else
89 std::cout << "Decimation failed\n";
90 break;
91 }
92
93 case Key_Plus:
94 ++steps_;
95 steps_ = std::min( steps_ , (size_t)( mesh_.n_vertices() / 10 ) );
96 updateGL();
97 std::cout << "# decimating steps increased to " << steps_ << std::endl;
98 break;
99
100 case Key_Minus:
101 --steps_;
102 steps_ = std::max( steps_ , size_t(1) );
103 updateGL();
104 std::cout << "# decimating steps increased to " << steps_ << std::endl;
105 break;
106
107 case Key_S:
108 {
109 OpenMesh::IO::Options opt;
110
111 opt += OpenMesh::IO::Options::Binary;
112
113 if (OpenMesh::IO::write_mesh( mesh(), "result.off", opt ))
114 std::cout << "mesh saved in 'result.off'\n";
115 }
116 break;
117
118 case Key_Q:
119 qApp->quit();
120 break;
121 case Key_Escape:
122 qApp->quit();
123 break;
124 default:
125 this->inherited_t::keyPressEvent(_event);
126 break;
127 }
128 }
129
130 void DecimaterViewerWidget::animate( void )
131 {
132 // updateGL();
133 // timer_->start(300, true);
134 }
135
136 //=============================================================================
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:207
OpenMesh::IO::Options
Set options for reader/writer modules.
Definition: Options.hh:90
OpenMesh::IO::Options::Binary
Set binary mode for r/w.
Definition: Options.hh:100