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SplatCloudSelection.cc
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40 \*===========================================================================*/
41
42 /*===========================================================================*\
43 * *
44 * $Revision$ *
45 * $Author$ *
46 * $Date$ *
47 * *
48 \*===========================================================================*/
49
50 //================================================================
51 //
52 // SplatCloudSelection - IMPLEMENTATION
53 //
54 //================================================================
55
56
57 //== INCLUDES =================================================================
58
59
60 #include "SplatCloudSelection.hh"
61
62
63 //== NAMESPACES ===============================================================
64
65
66 namespace SplatCloudSelection {
67
68
69 //== IMPLEMENTATION ==========================================================
70
71
72 //=========================================================
73 //== Vertex Selection =====================================
74 //=========================================================
75
76
77 void selectVertices( SplatCloud *_splatCloud, const std::vector<int> &_vertices )
78 {
79 if( _splatCloud == 0 )
80 return; // error
81
82 if( _vertices.empty() )
83 return; // done
84
85 if( !_splatCloud->hasSelections() )
86 {
87 if( !_splatCloud->requestSelections() )
88 return; // error
89
90 unsigned int i, num = _splatCloud->numSplats();
91 for( i=0; i<num; ++i )
92 _splatCloud->selections( i ) = false;
93 }
94
95 int n_vertices = (int) _splatCloud->numSplats();
96
97 unsigned int i;
98 for( i=0; i<_vertices.size(); ++i )
99 {
100 int v = _vertices[ i ];
101 if( (v >= 0) && (v < n_vertices) )
102 _splatCloud->selections( v ) = true;
103 }
104 }
105
106
107 //----------------------------------------------------------------
108
109
110 void unselectVertices( SplatCloud *_splatCloud, const std::vector<int> &_vertices )
111 {
112 if( _splatCloud == 0 )
113 return; // error
114
115 if( _vertices.empty() )
116 return; // done
117
118 if( !_splatCloud->hasSelections() )
119 return; // done
120
121 int n_vertices = (int) _splatCloud->numSplats();
122
123 unsigned int i;
124 for( i=0; i<_vertices.size(); ++i )
125 {
126 int v = _vertices[ i ];
127 if( (v >= 0) && (v < n_vertices) )
128 _splatCloud->selections( v ) = false;
129 }
130 }
131
132
133 //----------------------------------------------------------------
134
135
136 void selectAllVertices( SplatCloud *_splatCloud )
137 {
138 if( _splatCloud == 0 )
139 return; // error
140
141 if( !_splatCloud->hasSelections() )
142 {
143 if( !_splatCloud->requestSelections() )
144 return; // error
145 }
146
147 unsigned int i, num = _splatCloud->numSplats();
148 for( i=0; i<num; ++i )
149 _splatCloud->selections( i ) = true;
150 }
151
152
153 //----------------------------------------------------------------
154
155
156 void clearVertexSelection( SplatCloud *_splatCloud )
157 {
158 if( _splatCloud == 0 )
159 return; // error
160
161 if( !_splatCloud->hasSelections() )
162 return; // done
163
164 unsigned int i, num = _splatCloud->numSplats();
165 for( i=0; i<num; ++i )
166 _splatCloud->selections( i ) = false;
167 }
168
169
170 //----------------------------------------------------------------
171
172
173 void invertVertexSelection( SplatCloud *_splatCloud )
174 {
175 if( _splatCloud == 0 )
176 return; // error
177
178 if( _splatCloud->hasSelections() )
179 {
180 unsigned int i, num = _splatCloud->numSplats();
181 for( i=0; i<num; ++i )
182 _splatCloud->selections( i ) = !_splatCloud->selections( i );
183 }
184 else
185 {
186 if( !_splatCloud->requestSelections() )
187 return; // error
188
189 unsigned int i, num = _splatCloud->numSplats();
190 for( i=0; i<num; ++i )
191 _splatCloud->selections( i ) = true;
192 }
193 }
194
195
196 //----------------------------------------------------------------
197
198
199 static unsigned int countSelected( const SplatCloud *_splatCloud )
200 {
201 unsigned int count = 0;
202
203 unsigned int i, num = _splatCloud->numSplats();
204 for( i=0; i<num; ++i )
205 {
206 if( _splatCloud->selections( i ) )
207 ++count;
208 }
209
210 return count;
211 }
212
213
214 //----------------------------------------------------------------
215
216
217 std::vector<int> getVertexSelection( const SplatCloud *_splatCloud )
218 {
219 std::vector<int> vertices;
220
221 if( _splatCloud == 0 )
222 return vertices; // error
223
224 if( !_splatCloud->hasSelections() )
225 return vertices; // done
226
227 unsigned int numSelected = countSelected( _splatCloud );
228
229 vertices.reserve( numSelected );
230
231 unsigned int i, num = _splatCloud->numSplats();
232 for( i=0; i<num; ++i )
233 {
234 if( _splatCloud->selections( i ) )
235 vertices.push_back( i );
236 }
237
238 return vertices;
239 }
240
241
242 //----------------------------------------------------------------
243
244
245 std::vector<int> getVertexSelection( const SplatCloud *_splatCloud, bool &_inverted )
246 {
247 _inverted = false;
248
249 std::vector<int> vertices;
250
251 if( _splatCloud == 0 )
252 return vertices; // error
253
254 if( !_splatCloud->hasSelections() )
255 return vertices; // done
256
257 unsigned int numSelected = countSelected( _splatCloud );
258 unsigned int numUnselected = _splatCloud->numSplats() - numSelected;
259
260 if( numSelected <= numUnselected )
261 {
262 vertices.reserve( numSelected );
263
264 unsigned int i, num = _splatCloud->numSplats();
265 for( i=0; i<num; ++i )
266 {
267 if( _splatCloud->selections( i ) )
268 vertices.push_back( i );
269 }
270 }
271 else
272 {
273 _inverted = true;
274
275 vertices.reserve( numUnselected );
276
277 unsigned int i, num = _splatCloud->numSplats();
278 for( i=0; i<num; ++i )
279 {
280 if( !_splatCloud->selections( i ) )
281 vertices.push_back( i );
282 }
283 }
284
285 return vertices;
286 }
287
288
289 //=============================================================================
290
291
292 } // namespace SplatCloudSelection
293
294
295 //=============================================================================
SplatCloudSelection
Definition: SplatCloudSelection.cc:66
SplatCloud::requestSelections
bool requestSelections()
Request the predefined property.
Definition: SplatCloud.hh:573
SplatCloud::selections
Selection & selections(int _idx)
Get a reference of the predefined property's value.
Definition: SplatCloud.hh:649
SplatCloud::numSplats
unsigned int numSplats() const
Get the number of splats.
Definition: SplatCloud.hh:185
SplatCloudSelection.hh
Functions for selection on a SplatCloud.
SplatCloud
Definition: SplatCloud.hh:85
SplatCloud::hasSelections
bool hasSelections() const
Return the availability of the predefined property.
Definition: SplatCloud.hh:619