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gerrit-public.fairphone.software / platform / external / ImageMagick / 846740b998cb0bf740d221ac20bd53e7fe3acaac / . / www / conjure.html
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cristyffb69ed2010-12-25 00:06:48 +0000[diff] [blame]12 <title>ImageMagick: Command-line Tools: Conjure</title>
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cristydcca3fa2010-12-29 21:50:07 +0000[diff] [blame]240<h1>ImageMagick Conjure Command-line Tool</h1>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]241<p class="navigation-index">[<a href="conjure.html#usage">Example Usage</a> &bull; <a href="conjure.html#options">Option Summary</a>]</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]242
243<div class="doc-section">
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]244<p>The <kbd>conjure</kbd> program gives you the ability to perform custom image processing tasks from a script written in the Magick Scripting Language (MSL). MSL is XML-based and consists of action statements with attributes. Actions include reading an image, processing an image, getting attributes from an image, writing an image, and more. An attribute is a key/value pair that modifies the behavior of an action. See <a href="command-line-processing.html">Command Line Processing</a> for advice on how to structure your <kbd>conjure</kbd> command or see below for example usages of the command.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]245</div>
246
cristydcca3fa2010-12-29 21:50:07 +0000[diff] [blame]247<h2><a id="usage"></a>Example Usage</h2>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]248<div class="doc-section">
249
250<p>We list a few examples of the <kbd>conjure</kbd> command here to illustrate its usefulness and ease of use. To get started, here is simple <kbd>conjure</kbd> command:</p>
251
cristyeed6cb62012-01-28 19:38:34 +0000[diff] [blame]252<p class='crt'><span class="crtprompt"> $ </span><span class='crtin'>conjure -dimensions 400x400 incantation.msl</span></p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]253<p>The MSL script <a href="../www/source/incantation.msl">incantation.msl</a> used above is here:</p>
254
255<pre class="text">
256 &lt;?xml version="1.0" encoding="UTF-8"?&gt;
257 &lt;image size="400x400"&gt;
258 &lt;read filename="image.gif" /&gt;
259 &lt;get width="base-width" height="base-height" /&gt;
260 &lt;resize geometry="%[dimensions]" /&gt;
261 &lt;get width="width" height="height" /&gt;
262 &lt;print output="Image sized from %[base-width]x%[base-height] to %[width]x%[height].\n" /&gt;
263 &lt;write filename="image.png" /&gt;
264 &lt;/image&gt;
265</pre>
266
267<p>In this example, a family stayed home for their vacation but as far as their friends are concerned they went to a beautiful beach in the Caribbean:</p>
268
269<pre class="text">
270 &lt;?xml version="1.0" encoding="UTF-8"?>
271 &lt;group>
272 &lt;image id="family">
273 &lt;read filename="family.gif"/>
274 &lt;resize geometry="300x300"/>
275 &lt;/image>
276 &lt;image id="palm-trees">
277 &lt;read filename="palm-trees.gif"/>
278 &lt;resize geometry="300x100"/>
279 &lt;/image>
280 &lt;image>
281 &lt;read filename="beach.jpg"/>
282 &lt;composite image="family" geometry="+30+40"/>
283 &lt;composite image="palm-trees" geometry="+320+90"/>
284 &lt;/image>
285 &lt;write filename="family-vacation.png"/>
286 &lt;/group>
287</pre>
288
289<p>Here we display the width in pixels of text for a particular font and pointsize.</p>
290
291<pre class="text">
292 &lt;?xml version="1.0" encoding="UTF-8"?&gt;
293 &lt;image&gt;
294 &lt;query-font-metrics text="ImageMagick" font="helvetica" pointsize="48" /&gt;
295 &lt;print output="Text width is %[msl:font-metrics.width] pixels.\n" /&gt;
296 &lt;/image&gt;
297</pre>
298
299<p>The <kbd>query-font-metrics</kbd> tag supports these properties:</p>
300
301<pre class="text">
302 msl:font-metrics.pixels_per_em.x
303 msl:font-metrics.pixels_per_em.y
304 msl:font-metrics.ascent
305 msl:font-metrics.descent
306 msl:font-metrics.width
307 msl:font-metrics.height
308 msl:font-metrics.max_advance
309 msl:font-metrics.bounds.x1
310 msl:font-metrics.bounds.y1
311 msl:font-metrics.bounds.x2
312 msl:font-metrics.bounds.y2
313 msl:font-metrics.origin.x
314 msl:font-metrics.origin.y
315</pre>
316
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]317<p>MSL supports most methods and attributes discussed in the <a href="perl-magick.html">Perl API for ImageMagick</a>.
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]318</p>
319
320<p>In addition, MSL supports the <kbd>swap</kbd> element with a single <kbd>indexes</kbd> element.</p>
321
322<p>You can find additional examples of using <kbd>conjure</kbd> in <a href="http://www-106.ibm.com/developerworks/library/l-graf/?ca=dnt-428">Graphics from the Command Line</a>. Further discussion is available in <a href="http://www-106.ibm.com/developerworks/library/l-graf2/?ca=dgr-lnxw15GraphicsLine">More Graphics from the Command Line</a> and <a href="http://www.imagemagick.org/Usage/">Examples of ImageMagick Usage</a>.</p>
323
324</div>
325
cristydcca3fa2010-12-29 21:50:07 +0000[diff] [blame]326<h2><a id="options"></a>Option Summary</h2>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]327<div class="doc-section">
328
329<p>The <kbd>conjure</kbd> command recognizes these options. Click on an option to get more details about how that option works.</p>
330
331<table class="doc">
332 <tbody>
333 <tr>
334 <th align="left">Option</th>
335 <th align="left">Description</th>
336 </tr>
337
338 <tr>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]339 <td valign="top"><a href="command-line-options.html#debug">-debug <em class="option">events</em></a></td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]340 <td valign="top">display copious debugging information</td>
341 </tr>
342
343 <tr>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]344 <td valign="top"><a href="command-line-options.html#help">-help</a></td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]345 <td valign="top">print program options</td>
346 </tr>
347
348 <tr>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]349 <td valign="top"><a href="command-line-options.html#log">-log <em class="option">format</em></a></td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]350 <td valign="top">format of debugging information</td>
351 </tr>
352
353 <tr>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]354 <td valign="top"><a href="command-line-options.html#monitor">-monitor</a></td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]355 <td valign="top">monitor progress</td>
356 </tr>
357
358 <tr>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]359 <td valign="top"><a href="command-line-options.html#quiet">-quiet</a></td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]360 <td valign="top">suppress all warning messages</td>
361 </tr>
362
363 <tr>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]364 <td valign="top"><a href="command-line-options.html#regard-warnings">-regard-warnings</a></td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]365 <td valign="top">pay attention to warning messages.</td>
366 </tr>
367
368 <tr>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]369 <td valign="top"><a href="command-line-options.html#seed">-seed <em class="option">value</em></a></td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]370 <td valign="top">seed a new sequence of pseudo-random numbers</td>
371 </tr>
372
373 <tr>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]374 <td valign="top"><a href="command-line-options.html#verbose">-verbose</a></td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]375 <td valign="top">print detailed information about the image</td>
376 </tr>
377
378 <tr>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]379 <td valign="top"><a href="command-line-options.html#version">-version</a></td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]380 <td valign="top">print version information</td>
381 </tr>
382
383 </tbody>
384</table>
385
386</div>
cristyad41c0c2012-10-31 00:49:28 +0000[diff] [blame]387
388</div>
389
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391 <span id="linkbar-west">&nbsp;</span>
392 <span id="linkbar-center">
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395 </span>
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cristy45ef08f2012-12-07 13:13:34 +0000[diff] [blame]399 <span id="footer-west">&copy; 1999-2013 ImageMagick Studio LLC</span>
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