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| 72 | <div id="secondary_navbar"> |
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| 73 | |
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| 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> |
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| 76 | </div> |
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| 77 | |
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| 78 | |
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| 79 | <div id="container"> |
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| 80 | |
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| 81 | <h1 class="directory"><a href="directory-overview.html?format=raw">Interpolation/</a></h1> |
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| 82 | <h2 class="pro_file">square2quadrilateral.pro</h2> |
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| 83 | |
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| 84 | <div id="file_attr"> |
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| 85 | <dl> |
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| 86 | </dl> |
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| 87 | </div> |
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| 88 | |
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| 89 | <div id="file_comments"> warm (or map) a unit square onto an arbitrary quadrilateral |
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| 90 | according to the 4-point correspondences: |
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| 91 | (0,0) -> (x0,y0) |
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| 92 | (1,0) -> (x1,y1) |
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| 93 | (1,1) -> (x2,y2) |
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| 94 | (0,1) -> (x3,y3) |
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| 95 | The mapping is done using perspective transformation which preserve |
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| 96 | lines in all orientations and permit quadrilateral to quadrilateral |
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| 97 | mappings. see ref. bellow. |
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| 98 | </div> |
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| 99 | |
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| 100 | |
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| 101 | |
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| 102 | |
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| 103 | |
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| 104 | |
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| 105 | |
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| 106 | |
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| 107 | <div id="routine_summary"> |
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| 108 | <h2>Routine summary</h2> |
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| 109 | |
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| 110 | <dl> |
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| 111 | |
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| 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> |
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| 113 | <dd> </dd> |
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| 114 | |
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| 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> |
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| 116 | <dd></dd> |
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| 117 | |
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| 118 | </dl> |
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| 119 | </div> |
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| 120 | |
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| 121 | |
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| 122 | <div id="routine_details"> |
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| 123 | |
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| 124 | |
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| 125 | <div class="routine_details" id="_square2quadrilateral"> |
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| 126 | |
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| 127 | <h2><a class="top" href="#container">top</a>square2quadrilateral <span class="categories"> image, grid manipulation |
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| 128 | </span></h2> |
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| 129 | |
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| 130 | <p class="header"> |
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| 131 | <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> |
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| 132 | |
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| 133 | <div class="comments"> |
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| 134 | </div> |
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| 135 | |
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| 136 | |
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| 137 | |
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| 138 | |
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| 139 | <h3>Parameters</h3> |
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| 140 | |
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| 141 | |
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| 142 | <h4 id="_square2quadrilateral_param_x0in">x0in |
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| 151 | </h4> |
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| 152 | |
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| 153 | <div class="comments"></div> |
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| 154 | |
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| 155 | <h4 id="_square2quadrilateral_param_y0in">y0in |
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| 164 | </h4> |
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| 165 | |
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| 166 | <div class="comments"></div> |
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| 167 | |
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| 168 | <h4 id="_square2quadrilateral_param_x1in">x1in |
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| 177 | </h4> |
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| 178 | |
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| 179 | <div class="comments"></div> |
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| 180 | |
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| 181 | <h4 id="_square2quadrilateral_param_y1in">y1in |
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| 190 | </h4> |
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| 191 | |
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| 192 | <div class="comments"></div> |
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| 193 | |
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| 194 | <h4 id="_square2quadrilateral_param_x2in">x2in |
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| 203 | </h4> |
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| 204 | |
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| 205 | <div class="comments"></div> |
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| 206 | |
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| 207 | <h4 id="_square2quadrilateral_param_y2in">y2in |
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| 216 | </h4> |
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| 218 | <div class="comments"></div> |
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| 219 | |
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| 220 | <h4 id="_square2quadrilateral_param_x3in">x3in |
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| 229 | </h4> |
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| 231 | <div class="comments"></div> |
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| 232 | |
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| 233 | <h4 id="_square2quadrilateral_param_y3in">y3in |
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| 242 | </h4> |
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| 243 | |
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| 244 | <div class="comments"></div> |
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| 245 | |
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| 246 | <h4 id="_square2quadrilateral_param_xxin">xxin |
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| 255 | </h4> |
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| 257 | <div class="comments"></div> |
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| 258 | |
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| 259 | <h4 id="_square2quadrilateral_param_yyin">yyin |
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| 268 | </h4> |
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| 270 | <div class="comments"></div> |
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| 277 | <h3>Examples</h3><div class="value"> |
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| 278 | |
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| 279 | res = square2quadrilateral(x0,y0,x1,y1,x2,y2,x3,y3[,xin,yin]) |
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| 280 | </div> |
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| 303 | </div> |
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| 304 | |
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| 305 | |
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| 306 | <div class="routine_details" id="_square2quadrilateral"> |
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| 307 | |
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| 308 | <h2><a class="top" href="#container">top</a>square2quadrilateral </h2> |
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| 309 | |
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| 310 | <p class="header"> |
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| 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> |
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| 313 | <div class="comments"></div> |
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| 318 | <h3>Parameters</h3> |
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| 319 | |
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| 320 | |
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| 321 | <h4 id="_square2quadrilateral_param_x0in">x0in |
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| 330 | </h4> |
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| 332 | <div class="comments"></div> |
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| 333 | |
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| 334 | <h4 id="_square2quadrilateral_param_y0in">y0in |
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| 343 | </h4> |
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| 347 | <h4 id="_square2quadrilateral_param_x1in">x1in |
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| 360 | <h4 id="_square2quadrilateral_param_y1in">y1in |
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| 485 | <div id="tagline">Produced by IDLdoc 2.0.</div> |
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| 489 | </body> |
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| 490 | </html> |
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