Changeset 106 for trunk/SRC/Documentation/idldoc_html_output/Interpolation/square2quadrilateral.html
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trunk/SRC/Documentation/idldoc_html_output/Interpolation/square2quadrilateral.html
r104 r106 72 72 <div id="secondary_navbar"> 73 73 74 <a href="spl_keep_mean.html"><<prev file</a> | <a href="testinterp.html">next file >></a> <a href="square2quadrilateral.html" target="_TOP">view single page</a> | <a href="./../index.html?format=raw" target="_TOP">view frames</a> summary: fields | <a href="#routine_summary">routine</a> details: <a href="#routine_details">routine</a>74 <a href="spl_keep_mean.html"><<prev file</a> | <a href="testinterp.html">next file >></a> <a href="square2quadrilateral.html" target="_TOP">view single page</a> | <a href="./../index.html?format=raw" target="_TOP">view frames</a> summary: fields | routine details: <a href="#routine_details">routine</a> 75 75 76 76 </div> … … 105 105 106 106 107 <div id="routine_summary">108 <h2>Routine summary</h2>109 110 <dl>111 112 <dt><p><a href="#_square2quadrilateral"><span class="result">result = </span>square2quadrilateral(<span class="result">x0in, y0in, x1in, y1in, x2in, y2in, x3in, y3in, xxin, yyin</span>)</a></p><dt>113 <dd> </dd>114 115 <dt><p><a href="#_square2quadrilateral"><span class="result">result = </span>square2quadrilateral(<span class="result">x0in, y0in, x1in, y1in, x2in, y2in, x3in, y3in, xxin, yyin</span>)</a></p><dt>116 <dd></dd>117 118 </dl>119 </div>120 121 107 122 108 <div id="routine_details"> … … 134 120 </div> 135 121 136 122 <h3>Return value</h3><div class="value"> 123 124 (2,n) array: the new coodinates (xout, yout) of the (xin,yin) 125 point(s) after mapping. 126 If xin is a scalar, then n is equal to the number of elements of 127 x0. If xin is an array , then n is equal to the number of 128 elements of xin. 129 If xin and yin are omited, square2quadrilateral returns the 130 matrix A which is used for the inverse transformation. 131 132 </div> 137 133 138 134 … … 141 137 142 138 <h4 id="_square2quadrilateral_param_x0in">x0in 143 144 145 146 147 148 149 150 151 </h4> 152 153 <div class="comments"></div> 139 <span class="attr">in</span> 140 141 142 <span class="attr">required</span> 143 144 145 146 147 </h4> 148 149 <div class="comments"> the coordinates of the quadrilateral 150 (see above for correspondance with the unit square). Can be 151 scalar or array. (x0,y0), (x1,y1), (x2,y2) and (x3,y3) are 152 given in the anticlockwise order.</div> 154 153 155 154 <h4 id="_square2quadrilateral_param_y0in">y0in 156 157 158 159 160 161 162 163 164 </h4> 165 166 <div class="comments"></div> 155 <span class="attr">in</span> 156 157 158 <span class="attr">required</span> 159 160 161 162 163 </h4> 164 165 <div class="comments"> the coordinates of the quadrilateral 166 (see above for correspondance with the unit square). Can be 167 scalar or array. (x0,y0), (x1,y1), (x2,y2) and (x3,y3) are 168 given in the anticlockwise order.</div> 167 169 168 170 <h4 id="_square2quadrilateral_param_x1in">x1in 169 170 171 172 173 174 175 176 177 </h4> 178 179 <div class="comments"></div> 171 <span class="attr">in</span> 172 173 174 <span class="attr">required</span> 175 176 177 178 179 </h4> 180 181 <div class="comments"> the coordinates of the quadrilateral 182 (see above for correspondance with the unit square). Can be 183 scalar or array. (x0,y0), (x1,y1), (x2,y2) and (x3,y3) are 184 given in the anticlockwise order.</div> 180 185 181 186 <h4 id="_square2quadrilateral_param_y1in">y1in 182 183 184 185 186 187 188 189 190 </h4> 191 192 <div class="comments"></div> 187 <span class="attr">in</span> 188 189 190 <span class="attr">required</span> 191 192 193 194 195 </h4> 196 197 <div class="comments"> the coordinates of the quadrilateral 198 (see above for correspondance with the unit square). Can be 199 scalar or array. (x0,y0), (x1,y1), (x2,y2) and (x3,y3) are 200 given in the anticlockwise order.</div> 193 201 194 202 <h4 id="_square2quadrilateral_param_x2in">x2in 195 196 197 198 199 200 201 202 203 </h4> 204 205 <div class="comments"></div> 203 <span class="attr">in</span> 204 205 206 <span class="attr">required</span> 207 208 209 210 211 </h4> 212 213 <div class="comments"> the coordinates of the quadrilateral 214 (see above for correspondance with the unit square). Can be 215 scalar or array. (x0,y0), (x1,y1), (x2,y2) and (x3,y3) are 216 given in the anticlockwise order.</div> 206 217 207 218 <h4 id="_square2quadrilateral_param_y2in">y2in 208 209 210 211 212 213 214 215 216 </h4> 217 218 <div class="comments"></div> 219 <span class="attr">in</span> 220 221 222 <span class="attr">required</span> 223 224 225 226 227 </h4> 228 229 <div class="comments"> the coordinates of the quadrilateral 230 (see above for correspondance with the unit square). Can be 231 scalar or array. (x0,y0), (x1,y1), (x2,y2) and (x3,y3) are 232 given in the anticlockwise order.</div> 219 233 220 234 <h4 id="_square2quadrilateral_param_x3in">x3in 221 222 223 224 225 226 227 228 229 </h4> 230 231 <div class="comments"></div> 235 <span class="attr">in</span> 236 237 238 <span class="attr">required</span> 239 240 241 242 243 </h4> 244 245 <div class="comments"> the coordinates of the quadrilateral 246 (see above for correspondance with the unit square). Can be 247 scalar or array. (x0,y0), (x1,y1), (x2,y2) and (x3,y3) are 248 given in the anticlockwise order.</div> 232 249 233 250 <h4 id="_square2quadrilateral_param_y3in">y3in 234 235 236 237 238 239 240 241 242 </h4> 243 244 <div class="comments"></div> 251 <span class="attr">in</span> 252 253 254 <span class="attr">required</span> 255 256 257 258 259 </h4> 260 261 <div class="comments"> the coordinates of the quadrilateral 262 (see above for correspondance with the unit square). Can be 263 scalar or array. (x0,y0), (x1,y1), (x2,y2) and (x3,y3) are 264 given in the anticlockwise order. 265 </div> 245 266 246 267 <h4 id="_square2quadrilateral_param_xxin">xxin 247 248 249 250 251 252 253 254 255 </h4> 256 257 <div class="comments"></div> 268 <span class="attr">in</span> 269 270 271 <span class="attr">required</span> 272 273 274 275 276 </h4> 277 278 <div class="comments"> the coordinates of the point(s) for which we want to do the 279 mapping. Can be scalar or array.</div> 258 280 259 281 <h4 id="_square2quadrilateral_param_yyin">yyin 260 261 262 263 264 265 266 267 268 </h4> 269 270 <div class="comments"></div> 282 <span class="attr">in</span> 283 284 285 <span class="attr">required</span> 286 287 288 289 290 </h4> 291 292 <div class="comments"> the coordinates of the point(s) for which we want to do the 293 mapping. Can be scalar or array. 294 </div> 271 295 272 296 … … 276 300 277 301 <h3>Examples</h3><div class="value"> 278 279 res = square2quadrilateral(x0,y0,x1,y1,x2,y2,x3,y3[,xin,yin]) 280 </div> 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 </div> 304 305 306 <div class="routine_details" id="_square2quadrilateral"> 307 308 <h2><a class="top" href="#container">top</a>square2quadrilateral </h2> 309 310 <p class="header"> 311 <span class="result">result = </span>square2quadrilateral(<span class="result"><a href="#_square2quadrilateral_param_x0in">x0in</a>, <a href="#_square2quadrilateral_param_y0in">y0in</a>, <a href="#_square2quadrilateral_param_x1in">x1in</a>, <a href="#_square2quadrilateral_param_y1in">y1in</a>, <a href="#_square2quadrilateral_param_x2in">x2in</a>, <a href="#_square2quadrilateral_param_y2in">y2in</a>, <a href="#_square2quadrilateral_param_x3in">x3in</a>, <a href="#_square2quadrilateral_param_y3in">y3in</a>, <a href="#_square2quadrilateral_param_xxin">xxin</a>, <a href="#_square2quadrilateral_param_yyin">yyin</a></span>)</p> 312 313 <div class="comments"></div> 314 315 316 317 318 <h3>Parameters</h3> 319 320 321 <h4 id="_square2quadrilateral_param_x0in">x0in 322 323 324 325 326 327 328 329 330 </h4> 331 332 <div class="comments"></div> 333 334 <h4 id="_square2quadrilateral_param_y0in">y0in 335 336 337 338 339 340 341 342 343 </h4> 344 345 <div class="comments"></div> 346 347 <h4 id="_square2quadrilateral_param_x1in">x1in 348 349 350 351 352 353 354 355 356 </h4> 357 358 <div class="comments"></div> 359 360 <h4 id="_square2quadrilateral_param_y1in">y1in 361 362 363 364 365 366 367 368 369 </h4> 370 371 <div class="comments"></div> 372 373 <h4 id="_square2quadrilateral_param_x2in">x2in 374 375 376 377 378 379 380 381 382 </h4> 383 384 <div class="comments"></div> 385 386 <h4 id="_square2quadrilateral_param_y2in">y2in 387 388 389 390 391 392 393 394 395 </h4> 396 397 <div class="comments"></div> 398 399 <h4 id="_square2quadrilateral_param_x3in">x3in 400 401 402 403 404 405 406 407 408 </h4> 409 410 <div class="comments"></div> 411 412 <h4 id="_square2quadrilateral_param_y3in">y3in 413 414 415 416 417 418 419 420 421 </h4> 422 423 <div class="comments"></div> 424 425 <h4 id="_square2quadrilateral_param_xxin">xxin 426 427 428 429 430 431 432 433 434 </h4> 435 436 <div class="comments"></div> 437 438 <h4 id="_square2quadrilateral_param_yyin">yyin 439 440 441 442 443 444 445 446 447 </h4> 448 449 <div class="comments"></div> 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 302 IDL> res = square2quadrilateral(x0,y0,x1,y1,x2,y2,x3,y3[,xin,yin]) 303 304 305 306 IDL> splot,[0,5],[0,3],/nodata,xstyle=1,ystyle=1 307 IDL> tracegrille, findgen(11)*.1, findgen(11)*.1,color=indgen(12)*20 308 IDL> xin = (findgen(11)*.1)#replicate(1, 11) 309 IDL> yin = replicate(1, 11)#(findgen(11)*.1) 310 IDL> out = square2quadrilateral(2,1,3,0,5,1,2,3, xin, yin) 311 IDL> tracegrille, reform(out[0,*],11,11), reform(out[1,*],11,11),color=indgen(12)*20 312 </div> 313 <h3>Version history</h3> 314 315 316 <h4>History</h4><div class="value"> 317 Sebastien Masson (smasson@lodyc.jussieu.fr) 318 August 2003 319 Based on "Digital Image Warping" by G. Wolberg 320 IEEE Computer Society Press, Los Alamitos, California 321 Chapter 3, see p 52-56 322 </div> 323 324 325 <h3>Known issues</h3> 326 327 328 329 <h4>Restrictions</h4><div class="value"> I think degenerated quadrilateral (e.g. flat of 330 twisted) is not work. This has to be tested. 331 </div> 468 332 469 333
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