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gerrit-public.fairphone.software / platform / external / ImageMagick / 178edafa2ddbc40465115383b13685f7bc913b1f / . / www / api / draw.html
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178
179<div class="main">
180
cristy307ba182010-12-25 01:00:34 +0000[diff] [blame]181<h1>Module draw
182 Methods</h1>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]183<p class="navigation-index">[<a href="#AcquireDrawInfo">AcquireDrawInfo</a> &bull; <a href="#CloneDrawInfo">CloneDrawInfo</a> &bull; <a href="#DestroyDrawInfo">DestroyDrawInfo</a> &bull; <a href="#DrawAffineImage">DrawAffineImage</a> &bull; <a href="#DrawClipPath">DrawClipPath</a> &bull; <a href="#DrawImage">DrawImage</a> &bull; <a href="#DrawGradientImage">DrawGradientImage</a> &bull; <a href="#DrawPatternPath">DrawPatternPath</a> &bull; <a href="#DrawPrimitive">DrawPrimitive</a> &bull; <a href="#GetAffineMatrix">GetAffineMatrix</a>]</p>
184
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]185<h2><a href="http://www.wizards-toolkit.org/api/MagickCore/draw
186_8c.html" id="AcquireDrawInfo">AcquireDrawInfo</a></h2>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]187<div class="doc-section">
188
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]189<p>AcquireDrawInfo() returns a DrawInfo structure properly initialized.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]190
191<p>The format of the AcquireDrawInfo method is:</p>
192
193<pre class="code">
194 DrawInfo *AcquireDrawInfo(void)
195</pre>
196
197 </div>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]198<h2><a href="http://www.wizards-toolkit.org/api/MagickCore/draw
199_8c.html" id="CloneDrawInfo">CloneDrawInfo</a></h2>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]200<div class="doc-section">
201
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]202<p>CloneDrawInfo() makes a copy of the given draw info structure. If NULL is specified, a new image info structure is created initialized to default values.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]203
204<p>The format of the CloneDrawInfo method is:</p>
205
206<pre class="code">
207 DrawInfo *CloneDrawInfo(const ImageInfo *image_info,
208 const DrawInfo *draw_info)
209</pre>
210
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]211<p>A description of each parameter follows:</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]212
213<h5>image_info</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]214<p>the image info.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]215
216<h5>draw_info</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]217<p>the draw info.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]218
219 </div>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]220<h2><a href="http://www.wizards-toolkit.org/api/MagickCore/draw
221_8c.html" id="DestroyDrawInfo">DestroyDrawInfo</a></h2>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]222<div class="doc-section">
223
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]224<p>DestroyDrawInfo() deallocates memory associated with an DrawInfo structure.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]225
226<p>The format of the DestroyDrawInfo method is:</p>
227
228<pre class="code">
229 DrawInfo *DestroyDrawInfo(DrawInfo *draw_info)
230</pre>
231
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]232<p>A description of each parameter follows:</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]233
234<h5>draw_info</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]235<p>the draw info.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]236
237 </div>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]238<h2><a href="http://www.wizards-toolkit.org/api/MagickCore/draw
239_8c.html" id="DrawAffineImage">DrawAffineImage</a></h2>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]240<div class="doc-section">
241
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]242<p>DrawAffineImage() composites the source over the destination image as dictated by the affine transform.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]243
244<p>The format of the DrawAffineImage method is:</p>
245
246<pre class="code">
247 MagickBooleanType DrawAffineImage(Image *image,const Image *source,
248 const AffineMatrix *affine)
249</pre>
250
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]251<p>A description of each parameter follows:</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]252
253<h5>image</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]254<p>the image.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]255
256<h5>source</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]257<p>the source image.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]258
259<h5>affine</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]260<p>the affine transform.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]261
262 </div>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]263<h2><a href="http://www.wizards-toolkit.org/api/MagickCore/draw
264_8c.html" id="DrawClipPath">DrawClipPath</a></h2>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]265<div class="doc-section">
266
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]267<p>DrawClipPath() draws the clip path on the image mask.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]268
269<p>The format of the DrawClipPath method is:</p>
270
271<pre class="code">
272 MagickBooleanType DrawClipPath(Image *image,const DrawInfo *draw_info,
273 const char *name)
274</pre>
275
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]276<p>A description of each parameter follows:</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]277
278<h5>image</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]279<p>the image.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]280
281<h5>draw_info</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]282<p>the draw info.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]283
284<h5>name</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]285<p>the name of the clip path.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]286
287 </div>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]288<h2><a href="http://www.wizards-toolkit.org/api/MagickCore/draw
289_8c.html" id="DrawImage">DrawImage</a></h2>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]290<div class="doc-section">
291
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]292<p>DrawImage() draws a graphic primitive on your image. The primitive may be represented as a string or filename. Precede the filename with an "at" sign (@) and the contents of the file are drawn on the image. You can affect how text is drawn by setting one or more members of the draw info structure.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]293
294<p>The format of the DrawImage method is:</p>
295
296<pre class="code">
297 MagickBooleanType DrawImage(Image *image,const DrawInfo *draw_info)
298</pre>
299
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]300<p>A description of each parameter follows:</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]301
302<h5>image</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]303<p>the image.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]304
305<h5>draw_info</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]306<p>the draw info.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]307
308 </div>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]309<h2><a href="http://www.wizards-toolkit.org/api/MagickCore/draw
310_8c.html" id="DrawGradientImage">DrawGradientImage</a></h2>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]311<div class="doc-section">
312
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]313<p>DrawGradientImage() draws a linear gradient on the image.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]314
315<p>The format of the DrawGradientImage method is:</p>
316
317<pre class="code">
318 MagickBooleanType DrawGradientImage(Image *image,
319 const DrawInfo *draw_info)
320</pre>
321
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]322<p>A description of each parameter follows:</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]323
324<h5>image</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]325<p>the image.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]326
327<h5>_info</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]328<p>the draw info.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]329
330 </div>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]331<h2><a href="http://www.wizards-toolkit.org/api/MagickCore/draw
332_8c.html" id="DrawPatternPath">DrawPatternPath</a></h2>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]333<div class="doc-section">
334
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]335<p>DrawPatternPath() draws a pattern.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]336
337<p>The format of the DrawPatternPath method is:</p>
338
339<pre class="code">
340 MagickBooleanType DrawPatternPath(Image *image,const DrawInfo *draw_info,
341 const char *name,Image **pattern)
342</pre>
343
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]344<p>A description of each parameter follows:</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]345
346<h5>image</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]347<p>the image.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]348
349<h5>draw_info</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]350<p>the draw info.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]351
352<h5>name</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]353<p>the pattern name.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]354
355<h5>image</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]356<p>the image.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]357
358 </div>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]359<h2><a href="http://www.wizards-toolkit.org/api/MagickCore/draw
360_8c.html" id="DrawPrimitive">DrawPrimitive</a></h2>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]361<div class="doc-section">
362
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]363<p>DrawPrimitive() draws a primitive (line, rectangle, ellipse) on the image.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]364
365<p>The format of the DrawPrimitive method is:</p>
366
367<pre class="code">
368 MagickBooleanType DrawPrimitive(Image *image,const DrawInfo *draw_info,
369 PrimitiveInfo *primitive_info)
370</pre>
371
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]372<p>A description of each parameter follows:</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]373
374<h5>image</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]375<p>the image.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]376
377<h5>draw_info</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]378<p>the draw info.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]379
380<h5>primitive_info</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]381<p>Specifies a pointer to a PrimitiveInfo structure.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]382
383 </div>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]384<h2><a href="http://www.wizards-toolkit.org/api/MagickCore/draw
385_8c.html" id="GetAffineMatrix">GetAffineMatrix</a></h2>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]386<div class="doc-section">
387
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]388<p>GetAffineMatrix() returns an AffineMatrix initialized to the identity matrix.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]389
390<p>The format of the GetAffineMatrix method is:</p>
391
392<pre class="code">
393 void GetAffineMatrix(AffineMatrix *affine_matrix)
394</pre>
395
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]396<p>A description of each parameter follows:</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]397
398<h5>affine_matrix</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]399<p>the affine matrix.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]400
401 </div>
cristy3eaa0ef2010-03-06 20:35:26 +0000[diff] [blame]402
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