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11 <title>ImageMagick: MagickCore, C API for ImageMagick: Draw on an Image</title>
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154 <p class="navigation-index">[<a href="#AcquireDrawInfo">AcquireDrawInfo</a> • <a href="#CloneDrawInfo">CloneDrawInfo</a> • <a href="#DestroyDrawInfo">DestroyDrawInfo</a> • <a href="#DrawAffineImage">DrawAffineImage</a> • <a href="#DrawClipPath">DrawClipPath</a> • <a href="#DrawImage">DrawImage</a> • <a href="#DrawGradientImage">DrawGradientImage</a> • <a href="#DrawPatternPath">DrawPatternPath</a> • <a href="#DrawPrimitive">DrawPrimitive</a> • <a href="#GetAffineMatrix">GetAffineMatrix</a>]</p>
156 <h2><a href="http://www.imagemagick.org/api/MagickCore/draw
157 _8c.html" target="source" name="AcquireDrawInfo">AcquireDrawInfo</a></h2>
158 <div class="doc-section">
160 <p>AcquireDrawInfo() returns a DrawInfo structure properly initialized.</p></ol>
162 <p>The format of the AcquireDrawInfo method is:</p>
165 DrawInfo *AcquireDrawInfo(void)
169 <h2><a href="http://www.imagemagick.org/api/MagickCore/draw
170 _8c.html" target="source" name="CloneDrawInfo">CloneDrawInfo</a></h2>
171 <div class="doc-section">
173 <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></ol>
175 <p>The format of the CloneDrawInfo method is:</p>
178 DrawInfo *CloneDrawInfo(const ImageInfo *image_info,
179 const DrawInfo *draw_info)
182 <p>A description of each parameter follows:</p></ol>
185 <ol><p>the image info.</p></ol>
188 <ol><p>the draw info.</p></ol>
191 <h2><a href="http://www.imagemagick.org/api/MagickCore/draw
192 _8c.html" target="source" name="DestroyDrawInfo">DestroyDrawInfo</a></h2>
193 <div class="doc-section">
195 <p>DestroyDrawInfo() deallocates memory associated with an DrawInfo structure.</p></ol>
197 <p>The format of the DestroyDrawInfo method is:</p>
200 DrawInfo *DestroyDrawInfo(DrawInfo *draw_info)
203 <p>A description of each parameter follows:</p></ol>
206 <ol><p>the draw info.</p></ol>
209 <h2><a href="http://www.imagemagick.org/api/MagickCore/draw
210 _8c.html" target="source" name="DrawAffineImage">DrawAffineImage</a></h2>
211 <div class="doc-section">
213 <p>DrawAffineImage() composites the source over the destination image as dictated by the affine transform.</p></ol>
215 <p>The format of the DrawAffineImage method is:</p>
218 MagickBooleanType DrawAffineImage(Image *image,const Image *source,
219 const AffineMatrix *affine)
222 <p>A description of each parameter follows:</p></ol>
225 <ol><p>the image.</p></ol>
228 <ol><p>the source image.</p></ol>
231 <ol><p>the affine transform.</p></ol>
234 <h2><a href="http://www.imagemagick.org/api/MagickCore/draw
235 _8c.html" target="source" name="DrawClipPath">DrawClipPath</a></h2>
236 <div class="doc-section">
238 <p>DrawClipPath() draws the clip path on the image mask.</p></ol>
240 <p>The format of the DrawClipPath method is:</p>
243 MagickBooleanType DrawClipPath(Image *image,const DrawInfo *draw_info,
247 <p>A description of each parameter follows:</p></ol>
250 <ol><p>the image.</p></ol>
253 <ol><p>the draw info.</p></ol>
256 <ol><p>the name of the clip path.</p></ol>
259 <h2><a href="http://www.imagemagick.org/api/MagickCore/draw
260 _8c.html" target="source" name="DrawImage">DrawImage</a></h2>
261 <div class="doc-section">
263 <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></ol>
265 <p>The format of the DrawImage method is:</p>
268 MagickBooleanType DrawImage(Image *image,const DrawInfo *draw_info)
271 <p>A description of each parameter follows:</p></ol>
274 <ol><p>the image.</p></ol>
277 <ol><p>the draw info.</p></ol>
280 <h2><a href="http://www.imagemagick.org/api/MagickCore/draw
281 _8c.html" target="source" name="DrawGradientImage">DrawGradientImage</a></h2>
282 <div class="doc-section">
284 <p>DrawGradientImage() draws a linear gradient on the image.</p></ol>
286 <p>The format of the DrawGradientImage method is:</p>
289 MagickBooleanType DrawGradientImage(Image *image,
290 const DrawInfo *draw_info)
293 <p>A description of each parameter follows:</p></ol>
296 <ol><p>the image.</p></ol>
299 <ol><p>the draw info.</p></ol>
302 <h2><a href="http://www.imagemagick.org/api/MagickCore/draw
303 _8c.html" target="source" name="DrawPatternPath">DrawPatternPath</a></h2>
304 <div class="doc-section">
306 <p>DrawPatternPath() draws a pattern.</p></ol>
308 <p>The format of the DrawPatternPath method is:</p>
311 MagickBooleanType DrawPatternPath(Image *image,const DrawInfo *draw_info,
312 const char *name,Image **pattern)
315 <p>A description of each parameter follows:</p></ol>
318 <ol><p>the image.</p></ol>
321 <ol><p>the draw info.</p></ol>
324 <ol><p>the pattern name.</p></ol>
327 <ol><p>the image.</p></ol>
330 <h2><a href="http://www.imagemagick.org/api/MagickCore/draw
331 _8c.html" target="source" name="DrawPrimitive">DrawPrimitive</a></h2>
332 <div class="doc-section">
334 <p>DrawPrimitive() draws a primitive (line, rectangle, ellipse) on the image.</p></ol>
336 <p>The format of the DrawPrimitive method is:</p>
339 MagickBooleanType DrawPrimitive(Image *image,const DrawInfo *draw_info,
340 PrimitiveInfo *primitive_info)
343 <p>A description of each parameter follows:</p></ol>
346 <ol><p>the image.</p></ol>
349 <ol><p>the draw info.</p></ol>
351 <h5>primitive_info</h5>
352 <ol><p>Specifies a pointer to a PrimitiveInfo structure.</p></ol>
355 <h2><a href="http://www.imagemagick.org/api/MagickCore/draw
356 _8c.html" target="source" name="GetAffineMatrix">GetAffineMatrix</a></h2>
357 <div class="doc-section">
359 <p>GetAffineMatrix() returns an AffineMatrix initialized to the identity matrix.</p></ol>
361 <p>The format of the GetAffineMatrix method is:</p>
364 void GetAffineMatrix(AffineMatrix *affine_matrix)
367 <p>A description of each parameter follows:</p></ol>
369 <h5>affine_matrix</h5>
370 <ol><p>the affine matrix.</p></ol>
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