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173
cristy307ba182010-12-25 01:00:34 +0000[diff] [blame]174<h1>Module composite
175 Methods</h1>
cristy43d0f4d2009-09-17 19:35:37 +0000[diff] [blame]176<p class="navigation-index">[<a href="#CompositeImageChannel">CompositeImageChannel</a> &bull; <a href="#TextureImage">TextureImage</a>]</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]177
178<h2><a href="http://www.imagemagick.org/api/MagickCore/composite
179_8c.html" target="source" name="CompositeImageChannel">CompositeImageChannel</a></h2>
180<div class="doc-section">
181
182<p>CompositeImageChannel() returns the second image composited onto the first at the specified offset, using the specified composite method.</p></ol>
183
184<p>The format of the CompositeImageChannel method is:</p>
185
186<pre class="code">
187 MagickBooleanType CompositeImage(Image *image,
188 const CompositeOperator compose,Image *composite_image,
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]189 const ssize_t x_offset,const ssize_t y_offset)
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]190 MagickBooleanType CompositeImageChannel(Image *image,
191 const ChannelType channel,const CompositeOperator compose,
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]192 Image *composite_image,const ssize_t x_offset,const ssize_t y_offset)
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]193</pre>
194
195<p>A description of each parameter follows:</p></ol>
196
197<h5>image</h5>
198<ol><p>the destination image, modified by he composition</p></ol>
199
200<h5>channel</h5>
201<ol><p>the channel.</p></ol>
202
203<h5>compose</h5>
204<ol><p>This operator affects how the composite is applied to the image. The operators and how they are utilized are listed here http://www.w3.org/TR/SVG12/#compositing.</p></ol>
205
206<h5>composite_image</h5>
207<ol><p>the composite (source) image.</p></ol>
208
209<h5>x_offset</h5>
210<ol><p>the column offset of the composited image.</p></ol>
211
212<h5>y_offset</h5>
213<ol><p>the row offset of the composited image.</p></ol>
214
215<p>Extra Controls from Image meta-data in 'composite_image' (artifacts)</p></ol>
216
217<p>o "compose:args" A string containing extra numerical arguments for specific compose methods, generally expressed as a 'geometry' or a comma separated list of numbers.</p></ol>
218
219<p>Compose methods needing such arguments include "BlendCompositeOp" and "DisplaceCompositeOp".</p></ol>
220
221<p>o "compose:outside-overlay" Modify how the composition is to effect areas not directly covered by the 'composite_image' at the offset given. Normally this is dependant on the 'compose' method, especially Duff-Porter methods.</p></ol>
222
223<p>If set to "false" then disable all normal handling of pixels not covered by the composite_image. Typically used for repeated tiling of the composite_image by the calling API.</p></ol>
224
225<p>Previous to IM v6.5.3-3 this was called "modify-outside-overlay"</p></ol>
226
227 </div>
cristy43d0f4d2009-09-17 19:35:37 +0000[diff] [blame]228<h2><a href="http://www.imagemagick.org/api/MagickCore/composite
229_8c.html" target="source" name="TextureImage">TextureImage</a></h2>
230<div class="doc-section">
231
232<p>TextureImage() repeatedly tiles the texture image across and down the image canvas.</p></ol>
233
234<p>The format of the TextureImage method is:</p>
235
236<pre class="code">
237 MagickBooleanType TextureImage(Image *image,const Image *texture)
238</pre>
239
240<p>A description of each parameter follows:</p></ol>
241
242<h5>image</h5>
243<ol><p>the image.</p></ol>
244
245<h5>texture</h5>
246<ol><p>This image is the texture to layer on the background.</p></ol>
247
248 </div>
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