cairo-transforms.xml

按照官方的说法：Cairo is a vector graphics library with cross-device output support. 翻译过来

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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
                "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
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<refentry id="cairo-Transformations">
<refmeta>
<refentrytitle id="top_of_page">Transformations</refentrytitle>
<manvolnum>3</manvolnum>
<refmiscinfo>CAIRO Library</refmiscinfo>
</refmeta>

<refnamediv>
<refname>Transformations</refname>
<refpurpose>Manipulating the current transformation matrix</refpurpose>
<!--[<xref linkend="desc" endterm="desc.title"/>]-->
</refnamediv>

<refsynopsisdiv id="synopsis">
<title id="synopsis.title">Synopsis</title>

<synopsis>



<link linkend="void">void</link>        <link linkend="cairo-translate">cairo_translate</link>                 (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> tx,
                                             <link linkend="double">double</link> ty);
<link linkend="void">void</link>        <link linkend="cairo-scale">cairo_scale</link>                     (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> sx,
                                             <link linkend="double">double</link> sy);
<link linkend="void">void</link>        <link linkend="cairo-rotate">cairo_rotate</link>                    (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> angle);
<link linkend="void">void</link>        <link linkend="cairo-transform">cairo_transform</link>                 (<link linkend="cairo-t">cairo_t</link> *cr,
                                             const <link linkend="cairo-matrix-t">cairo_matrix_t</link> *matrix);
<link linkend="void">void</link>        <link linkend="cairo-set-matrix">cairo_set_matrix</link>                (<link linkend="cairo-t">cairo_t</link> *cr,
                                             const <link linkend="cairo-matrix-t">cairo_matrix_t</link> *matrix);
<link linkend="void">void</link>        <link linkend="cairo-get-matrix">cairo_get_matrix</link>                (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="cairo-matrix-t">cairo_matrix_t</link> *matrix);
<link linkend="void">void</link>        <link linkend="cairo-identity-matrix">cairo_identity_matrix</link>           (<link linkend="cairo-t">cairo_t</link> *cr);
<link linkend="void">void</link>        <link linkend="cairo-user-to-device">cairo_user_to_device</link>            (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> *x,
                                             <link linkend="double">double</link> *y);
<link linkend="void">void</link>        <link linkend="cairo-user-to-device-distance">cairo_user_to_device_distance</link>   (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> *dx,
                                             <link linkend="double">double</link> *dy);
<link linkend="void">void</link>        <link linkend="cairo-device-to-user">cairo_device_to_user</link>            (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> *x,
                                             <link linkend="double">double</link> *y);
<link linkend="void">void</link>        <link linkend="cairo-device-to-user-distance">cairo_device_to_user_distance</link>   (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> *dx,
                                             <link linkend="double">double</link> *dy);
</synopsis>
</refsynopsisdiv>









<refsect1 id="desc">
<title id="desc.title">Description</title>
<para>

</para>
</refsect1>

<refsect1 id="details">
<title id="details.title">Details</title>
<refsect2>
<title><anchor id="cairo-translate" role="function"/>cairo_translate ()</title>
<indexterm><primary>cairo_translate</primary></indexterm><programlisting><link linkend="void">void</link>        cairo_translate                 (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> tx,
                                             <link linkend="double">double</link> ty);</programlisting>
</refsect2>
<refsect2>
<title><anchor id="cairo-scale" role="function"/>cairo_scale ()</title>
<indexterm><primary>cairo_scale</primary></indexterm><programlisting><link linkend="void">void</link>        cairo_scale                     (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> sx,
                                             <link linkend="double">double</link> sy);</programlisting>
</refsect2>
<refsect2>
<title><anchor id="cairo-rotate" role="function"/>cairo_rotate ()</title>
<indexterm><primary>cairo_rotate</primary></indexterm><programlisting><link linkend="void">void</link>        cairo_rotate                    (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> angle);</programlisting>
</refsect2>
<refsect2>
<title><anchor id="cairo-transform" role="function"/>cairo_transform ()</title>
<indexterm><primary>cairo_transform</primary></indexterm><programlisting><link linkend="void">void</link>        cairo_transform                 (<link linkend="cairo-t">cairo_t</link> *cr,
                                             const <link linkend="cairo-matrix-t">cairo_matrix_t</link> *matrix);</programlisting>
</refsect2>
<refsect2>
<title><anchor id="cairo-set-matrix" role="function"/>cairo_set_matrix ()</title>
<indexterm><primary>cairo_set_matrix</primary></indexterm><programlisting><link linkend="void">void</link>        cairo_set_matrix                (<link linkend="cairo-t">cairo_t</link> *cr,
                                             const <link linkend="cairo-matrix-t">cairo_matrix_t</link> *matrix);</programlisting>
</refsect2>
<refsect2>
<title><anchor id="cairo-get-matrix" role="function"/>cairo_get_matrix ()</title>
<indexterm><primary>cairo_get_matrix</primary></indexterm><programlisting><link linkend="void">void</link>        cairo_get_matrix                (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="cairo-matrix-t">cairo_matrix_t</link> *matrix);</programlisting>
</refsect2>
<refsect2>
<title><anchor id="cairo-identity-matrix" role="function"/>cairo_identity_matrix ()</title>
<indexterm><primary>cairo_identity_matrix</primary></indexterm><programlisting><link linkend="void">void</link>        cairo_identity_matrix           (<link linkend="cairo-t">cairo_t</link> *cr);</programlisting>
</refsect2>
<refsect2>
<title><anchor id="cairo-user-to-device" role="function"/>cairo_user_to_device ()</title>
<indexterm><primary>cairo_user_to_device</primary></indexterm><programlisting><link linkend="void">void</link>        cairo_user_to_device            (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> *x,
                                             <link linkend="double">double</link> *y);</programlisting>
</refsect2>
<refsect2>
<title><anchor id="cairo-user-to-device-distance" role="function"/>cairo_user_to_device_distance ()</title>
<indexterm><primary>cairo_user_to_device_distance</primary></indexterm><programlisting><link linkend="void">void</link>        cairo_user_to_device_distance   (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> *dx,
                                             <link linkend="double">double</link> *dy);</programlisting>
</refsect2>
<refsect2>
<title><anchor id="cairo-device-to-user" role="function"/>cairo_device_to_user ()</title>
<indexterm><primary>cairo_device_to_user</primary></indexterm><programlisting><link linkend="void">void</link>        cairo_device_to_user            (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> *x,
                                             <link linkend="double">double</link> *y);</programlisting>
</refsect2>
<refsect2>
<title><anchor id="cairo-device-to-user-distance" role="function"/>cairo_device_to_user_distance ()</title>
<indexterm><primary>cairo_device_to_user_distance</primary></indexterm><programlisting><link linkend="void">void</link>        cairo_device_to_user_distance   (<link linkend="cairo-t">cairo_t</link> *cr,
                                             <link linkend="double">double</link> *dx,
                                             <link linkend="double">double</link> *dy);</programlisting>
</refsect2>

</refsect1>




</refentry>