<?xml version="1.0" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>render - Low-level methods to draw on an image</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <link rev="made" href="mailto:bfriesen@freddy.simplesystems.org" /> </head> <body style="background-color: white"> <P><a name="__index__"></a></P> <!-- INDEX BEGIN --> <ul> <li><a href="#name">NAME</a></li> <li><a href="#synopsis">SYNOPSIS</a></li> <li><a href="#function_descriptions">FUNCTION DESCRIPTIONS</a></li> <ul> <li><a href="#clonedrawinfo">CloneDrawInfo</a></li> <li><a href="#destroydrawinfo">DestroyDrawInfo</a></li> <li><a href="#drawaffineimage">DrawAffineImage</a></li> <li><a href="#drawclippath">DrawClipPath</a></li> <li><a href="#drawimage">DrawImage</a></li> <li><a href="#drawpatternpath">DrawPatternPath</a></li> </ul> </ul> <!-- INDEX END --> <hr /> <P> </P> <h1><a name="name">NAME</a></h1> <P>render - Low-level methods to draw on an image</P> <P> </P> <hr /> <h1><a name="synopsis">SYNOPSIS</a></h1> <P>DrawInfo * <strong>CloneDrawInfo</strong>( const ImageInfo *image_info, const DrawInfo *draw_info );</P> <P>void <strong>DestroyDrawInfo</strong>( DrawInfo *draw_info );</P> <P>unsigned int <strong>DrawAffineImage</strong>( Image *image, const Image *composite, const AffineMatrix *affine );</P> <P>unsigned int <strong>DrawClipPath</strong>( Image *image, const DrawInfo *draw_info, const char *name );</P> <P>unsigned int <strong>DrawImage</strong>( Image *image, const DrawInfo *draw_info );</P> <P>unsigned int <strong>DrawPatternPath</strong>( Image *image, const DrawInfo *draw_info, const char *name, Image ** pattern );</P> <P> </P> <hr /> <h1><a name="function_descriptions">FUNCTION DESCRIPTIONS</a></h1> <P> </P> <h2><a name="clonedrawinfo">CloneDrawInfo</a></h2> <blockquote>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. </blockquote><P>The format of the CloneDrawInfo method is:</P> <blockquote><A HREF="types.html#DrawInfo">DrawInfo</A> *CloneDrawInfo ( const <A HREF="types.html#ImageInfo">ImageInfo</A> *image_info, const <A HREF="types.html#DrawInfo">DrawInfo</A> *draw_info ); </blockquote><P>A description of each parameter follows:</P> <dl> <dt><strong><a name="item_o_image_info_3a">image_info:</a></strong> <DD> <P>The image info.</P> </dd> </li> <dt><strong><a name="item_o_draw_info_3a">draw_info:</a></strong> <DD> <P>The draw info.</P> </dd> </li> </dl> <P> </P> <h2><a name="destroydrawinfo">DestroyDrawInfo</a></h2> <blockquote>DestroyDrawInfo() deallocates memory associated with an <A HREF="types.html#DrawInfo">DrawInfo</A> structure. </blockquote><P>The format of the DestroyDrawInfo method is:</P> <blockquote>void DestroyDrawInfo ( <A HREF="types.html#DrawInfo">DrawInfo</A> *draw_info ); </blockquote><P>A description of each parameter follows:</P> <dl> <dt><strong>draw_info:</strong> <DD> <P>The draw info.</P> </dd> </li> </dl> <P> </P> <h2><a name="drawaffineimage">DrawAffineImage</a></h2> <blockquote>DrawAffineImage() composites the source over the destination image as dictated by the affine transform. </blockquote><P>The format of the DrawAffineImage method is:</P> <blockquote>unsigned int DrawAffineImage ( <A HREF="types.html#Image">Image</A> *image, const <A HREF="types.html#Image">Image</A> *composite, const <A HREF="types.html#AffineMatrix">AffineMatrix</A> *affine ); </blockquote><P>A description of each parameter follows:</P> <dl> <dt><strong><a name="item_o_image_3a">image:</a></strong> <DD> <P>The image.</P> </dd> </li> <dt><strong>image:</strong> <DD> <P>The composite image.</P> </dd> </li> <dt><strong><a name="item_o_affine_3a">affine:</a></strong> <DD> <P>The affine transform.</P> </dd> </li> </dl> <P> </P> <h2><a name="drawclippath">DrawClipPath</a></h2> <blockquote>DrawClipPath() draws the clip path on the image mask. </blockquote><P>The format of the DrawClipPath method is:</P> <blockquote>unsigned int DrawClipPath ( <A HREF="types.html#Image">Image</A> *image, const <A HREF="types.html#DrawInfo">DrawInfo</A> *draw_info, const char *name ); </blockquote><P>A description of each parameter follows:</P> <dl> <dt><strong>image:</strong> <DD> <P>The image.</P> </dd> </li> <dt><strong>draw_info:</strong> <DD> <P>The draw info.</P> </dd> </li> <dt><strong><a name="item_o_name_3a">name:</a></strong> <DD> <P>The name of the clip path.</P> </dd> </li> </dl> <P> </P> <h2><a name="drawimage">DrawImage</a></h2> <blockquote>Use DrawImage() to draw 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. </blockquote><P>Note that this is a legacy interface. Authors of new code should consider using the Draw* methods defined by magick/draw.h since they are better documented and less error prone.</P> <P>The format of the DrawImage method is:</P> <blockquote>unsigned int DrawImage ( <A HREF="types.html#Image">Image</A> *image, const <A HREF="types.html#DrawInfo">DrawInfo</A> *draw_info ); </blockquote><P>A description of each parameter follows:</P> <dl> <dt><strong>image:</strong> <DD> <P>The image.</P> </dd> </li> <dt><strong>draw_info:</strong> <DD> <P>The draw info.</P> </dd> </li> </dl> <P> </P> <h2><a name="drawpatternpath">DrawPatternPath</a></h2> <blockquote>DrawPatternPath() draws a pattern. </blockquote><P>The format of the DrawPatternPath method is:</P> <blockquote>unsigned int DrawPatternPath ( <A HREF="types.html#Image">Image</A> *image, const <A HREF="types.html#DrawInfo">DrawInfo</A> *draw_info, const char *name, <A HREF="types.html#Image">Image</A> **pattern ); </blockquote><P>A description of each parameter follows:</P> <dl> <dt><strong>image:</strong> <DD> <P>The image.</P> </dd> </li> <dt><strong>draw_info:</strong> <DD> <P>The draw info.</P> </dd> </li> <dt><strong>name:</strong> <DD> <P>The pattern name.</P> </dd> </li> <dt><strong>image:</strong> <DD> <P>The image.</P> </dd> </dl> </body> </html>
