1 2 3 4 5 <!DOCTYPE html> 6 <html lang="en"> 7 <head> 8 <meta name="google-site-verification" content="_bMOCDpkx9ZAzBwb2kF3PRHbfUUdFj2uO8Jd1AXArz4" /> 9 <title>ImageMagick: MagickCore, C API for ImageMagick: Draw on an Image</title> 10 <meta http-equiv="content-type" content="text/html; charset=utf-8"/> 11 <meta name="application-name" content="ImageMagick"/> 12 <meta name="description" content="ImageMagick is a software suite to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, JPEG-2000, GIF, WebP, Postscript, PDF, and SVG. 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If NULL is specified, a new DrawInfo structure is created initialized to default values.</p> 70 71 <p>The format of the CloneDrawInfo method is:</p> 72 73 <pre class="text"> 74 DrawInfo *CloneDrawInfo(const ImageInfo *image_info, 75 const DrawInfo *draw_info) 76 </pre> 77 78 <p>A description of each parameter follows:</p> 79 80 <dd> 81 </dd> 82 83 <dd> </dd> 84 <dl class="dl-horizontal"> 85 <dt>image_info</dt> 86 <dd>the image info. </dd> 87 88 <dd> </dd> 89 <dt>draw_info</dt> 90 <dd>the draw info. </dd> 91 92 <dd> </dd> 93 </dl> 94 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/draw_8c.html" id="DestroyDrawInfo">DestroyDrawInfo</a></h2> 95 96 <p>DestroyDrawInfo() deallocates memory associated with an DrawInfo structure.</p> 97 98 <p>The format of the DestroyDrawInfo method is:</p> 99 100 <pre class="text"> 101 DrawInfo *DestroyDrawInfo(DrawInfo *draw_info) 102 </pre> 103 104 <p>A description of each parameter follows:</p> 105 106 <dd> 107 </dd> 108 109 <dd> </dd> 110 <dl class="dl-horizontal"> 111 <dt>draw_info</dt> 112 <dd>the draw info. </dd> 113 114 <dd> </dd> 115 </dl> 116 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/draw_8c.html" id="DrawAffineImage">DrawAffineImage</a></h2> 117 118 <p>DrawAffineImage() composites the source over the destination image as dictated by the affine transform.</p> 119 120 <p>The format of the DrawAffineImage method is:</p> 121 122 <pre class="text"> 123 MagickBooleanType DrawAffineImage(Image *image,const Image *source, 124 const AffineMatrix *affine,ExceptionInfo *exception) 125 </pre> 126 127 <p>A description of each parameter follows:</p> 128 129 <dd> 130 </dd> 131 132 <dd> </dd> 133 <dl class="dl-horizontal"> 134 <dt>image</dt> 135 <dd>the image. </dd> 136 137 <dd> </dd> 138 <dt>source</dt> 139 <dd>the source image. </dd> 140 141 <dd> </dd> 142 <dt>affine</dt> 143 <dd>the affine transform. </dd> 144 145 <dd> </dd> 146 <dt>exception</dt> 147 <dd>return any errors or warnings in this structure. </dd> 148 149 <dd> </dd> 150 </dl> 151 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/draw_8c.html" id="DrawClipPath">DrawClipPath</a></h2> 152 153 <p>DrawClipPath() draws the clip path on the image mask.</p> 154 155 <p>The format of the DrawClipPath method is:</p> 156 157 <pre class="text"> 158 MagickBooleanType DrawClipPath(Image *image,const DrawInfo *draw_info, 159 const char *name,ExceptionInfo *exception) 160 </pre> 161 162 <p>A description of each parameter follows:</p> 163 164 <dd> 165 </dd> 166 167 <dd> </dd> 168 <dl class="dl-horizontal"> 169 <dt>image</dt> 170 <dd>the image. </dd> 171 172 <dd> </dd> 173 <dt>draw_info</dt> 174 <dd>the draw info. </dd> 175 176 <dd> </dd> 177 <dt>name</dt> 178 <dd>the name of the clip path. </dd> 179 180 <dd> </dd> 181 <dt>exception</dt> 182 <dd>return any errors or warnings in this structure. </dd> 183 184 <dd> </dd> 185 </dl> 186 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/draw_8c.html" id="DrawImage">DrawImage</a></h2> 187 188 <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> 189 190 <p>The format of the DrawImage method is:</p> 191 192 <pre class="text"> 193 MagickBooleanType DrawImage(Image *image,const DrawInfo *draw_info, 194 ExceptionInfo *exception) 195 </pre> 196 197 <p>A description of each parameter follows:</p> 198 199 <dd> 200 </dd> 201 202 <dd> </dd> 203 <dl class="dl-horizontal"> 204 <dt>image</dt> 205 <dd>the image. </dd> 206 207 <dd> </dd> 208 <dt>draw_info</dt> 209 <dd>the draw info. </dd> 210 211 <dd> </dd> 212 <dt>exception</dt> 213 <dd>return any errors or warnings in this structure. </dd> 214 215 <dd> </dd> 216 </dl> 217 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/draw_8c.html" id="DrawGradientImage">DrawGradientImage</a></h2> 218 219 <p>DrawGradientImage() draws a linear gradient on the image.</p> 220 221 <p>The format of the DrawGradientImage method is:</p> 222 223 <pre class="text"> 224 MagickBooleanType DrawGradientImage(Image *image, 225 const DrawInfo *draw_info,ExceptionInfo *exception) 226 </pre> 227 228 <p>A description of each parameter follows:</p> 229 230 <dd> 231 </dd> 232 233 <dd> </dd> 234 <dl class="dl-horizontal"> 235 <dt>image</dt> 236 <dd>the image. </dd> 237 238 <dd> </dd> 239 <dt>draw_info</dt> 240 <dd>the draw info. </dd> 241 242 <dd> </dd> 243 <dt>exception</dt> 244 <dd>return any errors or warnings in this structure. </dd> 245 246 <dd> </dd> 247 </dl> 248 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/draw_8c.html" id="DrawPatternPath">DrawPatternPath</a></h2> 249 250 <p>DrawPatternPath() draws a pattern.</p> 251 252 <p>The format of the DrawPatternPath method is:</p> 253 254 <pre class="text"> 255 MagickBooleanType DrawPatternPath(Image *image,const DrawInfo *draw_info, 256 const char *name,Image **pattern,ExceptionInfo *exception) 257 </pre> 258 259 <p>A description of each parameter follows:</p> 260 261 <dd> 262 </dd> 263 264 <dd> </dd> 265 <dl class="dl-horizontal"> 266 <dt>image</dt> 267 <dd>the image. </dd> 268 269 <dd> </dd> 270 <dt>draw_info</dt> 271 <dd>the draw info. </dd> 272 273 <dd> </dd> 274 <dt>name</dt> 275 <dd>the pattern name. </dd> 276 277 <dd> </dd> 278 <dt>image</dt> 279 <dd>the image. </dd> 280 281 <dd> </dd> 282 <dt>exception</dt> 283 <dd>return any errors or warnings in this structure. </dd> 284 285 <dd> </dd> 286 </dl> 287 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/draw_8c.html" id="DrawPrimitive">DrawPrimitive</a></h2> 288 289 <p>DrawPrimitive() draws a primitive (line, rectangle, ellipse) on the image.</p> 290 291 <p>The format of the DrawPrimitive method is:</p> 292 293 <pre class="text"> 294 MagickBooleanType DrawPrimitive(Image *image,const DrawInfo *draw_info, 295 PrimitiveInfo *primitive_info,ExceptionInfo *exception) 296 </pre> 297 298 <p>A description of each parameter follows:</p> 299 300 <dd> 301 </dd> 302 303 <dd> </dd> 304 <dl class="dl-horizontal"> 305 <dt>image</dt> 306 <dd>the image. </dd> 307 308 <dd> </dd> 309 <dt>draw_info</dt> 310 <dd>the draw info. </dd> 311 312 <dd> </dd> 313 <dt>primitive_info</dt> 314 <dd>Specifies a pointer to a PrimitiveInfo structure. </dd> 315 316 <dd> </dd> 317 <dt>exception</dt> 318 <dd>return any errors or warnings in this structure. </dd> 319 320 <dd> </dd> 321 </dl> 322 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/draw_8c.html" id="GetAffineMatrix">GetAffineMatrix</a></h2> 323 324 <p>GetAffineMatrix() returns an AffineMatrix initialized to the identity matrix.</p> 325 326 <p>The format of the GetAffineMatrix method is:</p> 327 328 <pre class="text"> 329 void GetAffineMatrix(AffineMatrix *affine_matrix) 330 </pre> 331 332 <p>A description of each parameter follows:</p> 333 334 <dd> 335 </dd> 336 337 <dd> </dd> 338 <dl class="dl-horizontal"> 339 <dt>affine_matrix</dt> 340 <dd>the affine matrix. </dd> 341 342 <dd> </dd> 343 </dl> 344 </div> 345 <footer class="magick-footer"> 346 <p><a href="../script/support.php">Donate</a> 347 <a href="../script/sitemap.php">Sitemap</a> 348 <a href="../script/links.php">Related</a> 349 <a href="../script/architecture.php">Architecture</a> 350 </p> 351 <p><a href="draw.php#">Back to top</a> 352 <a href="http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x89AB63D48277377A">Public Key</a> 353 <a href="../script/contact.php">Contact Us</a></p> 354 <p><small> 1999-2016 ImageMagick Studio LLC</small></p> 355 </footer> 356 </div><!-- /.container --> 357 358 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script> 359 <script src="http://nextgen.imagemagick.org/js/magick.php"></script> 360 </div> 361 </body> 362 </html> 363
