fontconfig/doc/func.sgml

   Copyright © 2003 Keith Packard

   Permission to use, copy, modify, distribute, and sell this software and its

   documentation for any purpose is hereby granted without fee, provided that

   the above copyright notice appear in all copies and that both that

   copyright notice and this permission notice appear in supporting

   documentation, and that the name of the author(s) not be used in

   advertising or publicity pertaining to distribution of the software without

   specific, written prior permission.  The authors make no

   representations about the suitability of this software for any purpose.  It

   is provided "as is" without express or implied warranty.

   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR

   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

   PERFORMANCE OF THIS SOFTWARE.

 -->

    <refentry id="FcMatrixInit">

	<refmeta>

	    <refentrytitle>FcMatrixInit</refentrytitle>

	    <manvolnum>3</manvolnum>

	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>

	</refmeta>

	<refnamediv>

	    <refname>FcMatrixInit</refname>

	    <refpurpose>initialize an FcMatrix structure</refpurpose>

	</refnamediv>

	<refsynopsisdiv>

	<funcsynopsis>

	<funcsynopsisinfo>

#include <fontconfig/fontconfig.h>

	</funcsynopsisinfo>

	<funcprototype>

	    <funcdef>void <function>FcMatrixInit</function></funcdef>

		<paramdef>FcMatrix *<parameter>matrix</parameter></paramdef>

	</funcprototype>

	</funcsynopsis>

	</refsynopsisdiv>

	<refsect1><title>Description</title>

	    <para>

<function>FcMatrixInit</function> initializes <parameter>matrix</parameter>

to the identity matrix.

	    </para>

	</refsect1>

    </refentry>

   fontconfig/doc/func.sgml

   Copyright © 2003 Keith Packard

   Permission to use, copy, modify, distribute, and sell this software and its

   documentation for any purpose is hereby granted without fee, provided that

   the above copyright notice appear in all copies and that both that

   copyright notice and this permission notice appear in supporting

   documentation, and that the name of the author(s) not be used in

   advertising or publicity pertaining to distribution of the software without

   specific, written prior permission.  The authors make no

   representations about the suitability of this software for any purpose.  It

   is provided "as is" without express or implied warranty.

   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR

   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

   PERFORMANCE OF THIS SOFTWARE.

 -->

    <refentry id="FcMatrixCopy">

	<refmeta>

	    <refentrytitle>FcMatrixCopy</refentrytitle>

	    <manvolnum>3</manvolnum>

	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>

	</refmeta>

	<refnamediv>

	    <refname>FcMatrixCopy</refname>

	    <refpurpose>Copy a matrix</refpurpose>

	</refnamediv>

	<refsynopsisdiv>

	<funcsynopsis>

	<funcsynopsisinfo>

#include <fontconfig/fontconfig.h>

	</funcsynopsisinfo>

	<funcprototype>

	    <funcdef>void <function>FcMatrixCopy</function></funcdef>

		<paramdef>const FcMatrix *<parameter>matrix</parameter></paramdef>

	</funcprototype>

	</funcsynopsis>

	</refsynopsisdiv>

	<refsect1><title>Description</title>

	    <para>

<function>FcMatrixCopy</function> allocates a new FcMatrix

and copies <parameter>mat</parameter> into it.

	    </para>

	</refsect1>

    </refentry>

   fontconfig/doc/func.sgml

   Copyright © 2003 Keith Packard

   Permission to use, copy, modify, distribute, and sell this software and its

   documentation for any purpose is hereby granted without fee, provided that

   the above copyright notice appear in all copies and that both that

   copyright notice and this permission notice appear in supporting

   documentation, and that the name of the author(s) not be used in

   advertising or publicity pertaining to distribution of the software without

   specific, written prior permission.  The authors make no

   representations about the suitability of this software for any purpose.  It

   is provided "as is" without express or implied warranty.

   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR

   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

   PERFORMANCE OF THIS SOFTWARE.

 -->

    <refentry id="FcMatrixEqual">

	<refmeta>

	    <refentrytitle>FcMatrixEqual</refentrytitle>

	    <manvolnum>3</manvolnum>

	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>

	</refmeta>

	<refnamediv>

	    <refname>FcMatrixEqual</refname>

	    <refpurpose>Compare two matrices</refpurpose>

	</refnamediv>

	<refsynopsisdiv>

	<funcsynopsis>

	<funcsynopsisinfo>

#include <fontconfig/fontconfig.h>

	</funcsynopsisinfo>

	<funcprototype>

	    <funcdef>void <function>FcMatrixEqual</function></funcdef>

		<paramdef>const FcMatrix *<parameter>matrix1</parameter></paramdef>

		<paramdef>const FcMatrix *<parameter>matrix2</parameter></paramdef>

	</funcprototype>

	</funcsynopsis>

	</refsynopsisdiv>

	<refsect1><title>Description</title>

	    <para>

<function>FcMatrixEqual</function> compares <parameter>matrix1</parameter>

and <parameter>matrix2</parameter> returning FcTrue when they are equal and

FcFalse when they are not.

	    </para>

	</refsect1>

    </refentry>

   fontconfig/doc/func.sgml

   Copyright © 2003 Keith Packard

   Permission to use, copy, modify, distribute, and sell this software and its

   documentation for any purpose is hereby granted without fee, provided that

   the above copyright notice appear in all copies and that both that

   copyright notice and this permission notice appear in supporting

   documentation, and that the name of the author(s) not be used in

   advertising or publicity pertaining to distribution of the software without

   specific, written prior permission.  The authors make no

   representations about the suitability of this software for any purpose.  It

   is provided "as is" without express or implied warranty.

   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR

   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

   PERFORMANCE OF THIS SOFTWARE.

 -->

    <refentry id="FcMatrixMultiply">

	<refmeta>

	    <refentrytitle>FcMatrixMultiply</refentrytitle>

	    <manvolnum>3</manvolnum>

	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>

	</refmeta>

	<refnamediv>

	    <refname>FcMatrixMultiply</refname>

	    <refpurpose>Multiply matrices</refpurpose>

	</refnamediv>

	<refsynopsisdiv>

	<funcsynopsis>

	<funcsynopsisinfo>

#include <fontconfig/fontconfig.h>

	</funcsynopsisinfo>

	<funcprototype>

	    <funcdef>void <function>FcMatrixMultiply</function></funcdef>

		<paramdef>FcMatrix *<parameter>result</parameter></paramdef>

		<paramdef>const FcMatrix *<parameter>matrix1</parameter></paramdef>

		<paramdef>const FcMatrix *<parameter>matrix2</parameter></paramdef>

	</funcprototype>

	</funcsynopsis>

	</refsynopsisdiv>

	<refsect1><title>Description</title>

	    <para>

<function>FcMatrixMultiply</function> multiplies

<parameter>matrix1</parameter> and <parameter>matrix2</parameter> storing

the result in <parameter>result</parameter>.

	    </para>

	</refsect1>

    </refentry>

   fontconfig/doc/func.sgml

   Copyright © 2003 Keith Packard

   Permission to use, copy, modify, distribute, and sell this software and its

   documentation for any purpose is hereby granted without fee, provided that

   the above copyright notice appear in all copies and that both that

   copyright notice and this permission notice appear in supporting

   documentation, and that the name of the author(s) not be used in

   advertising or publicity pertaining to distribution of the software without

   specific, written prior permission.  The authors make no

   representations about the suitability of this software for any purpose.  It

   is provided "as is" without express or implied warranty.

   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR

   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

   PERFORMANCE OF THIS SOFTWARE.

 -->

    <refentry id="FcMatrixRotate">

	<refmeta>

	    <refentrytitle>FcMatrixRotate</refentrytitle>

	    <manvolnum>3</manvolnum>

	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>

	</refmeta>

	<refnamediv>

	    <refname>FcMatrixRotate</refname>

	    <refpurpose>Rotate a matrix</refpurpose>

	</refnamediv>

	<refsynopsisdiv>

	<funcsynopsis>

	<funcsynopsisinfo>

#include <fontconfig/fontconfig.h>

	</funcsynopsisinfo>

	<funcprototype>

	    <funcdef>void <function>FcMatrixRotate</function></funcdef>

		<paramdef>FcMatrix *<parameter>matrix</parameter></paramdef>

		<paramdef>double <parameter>cos</parameter></paramdef>

		<paramdef>double <parameter>sin</parameter></paramdef>

	</funcprototype>

	</funcsynopsis>

	</refsynopsisdiv>

	<refsect1><title>Description</title>

	    <para>

<function>FcMatrixRotate</function> rotates <parameter>matrix</parameter>

by the angle who's sine is <parameter>sin</parameter> and cosine is

<parameter>cos</parameter>.  This is done by multiplying by the

matrix:

<programlisting>

  cos -sin

  sin  cos

</programlisting>

	    </para>

	</refsect1>

    </refentry>

   fontconfig/doc/func.sgml

   Copyright © 2003 Keith Packard

   Permission to use, copy, modify, distribute, and sell this software and its

   documentation for any purpose is hereby granted without fee, provided that

   the above copyright notice appear in all copies and that both that

   copyright notice and this permission notice appear in supporting

   documentation, and that the name of the author(s) not be used in

   advertising or publicity pertaining to distribution of the software without

   specific, written prior permission.  The authors make no

   representations about the suitability of this software for any purpose.  It

   is provided "as is" without express or implied warranty.

   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR

   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

   PERFORMANCE OF THIS SOFTWARE.

 -->

    <refentry id="FcMatrixScale">

	<refmeta>

	    <refentrytitle>FcMatrixScale</refentrytitle>

	    <manvolnum>3</manvolnum>

	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>

	</refmeta>

	<refnamediv>

	    <refname>FcMatrixScale</refname>

	    <refpurpose>Scale a matrix</refpurpose>

	</refnamediv>

	<refsynopsisdiv>

	<funcsynopsis>

	<funcsynopsisinfo>

#include <fontconfig/fontconfig.h>

	</funcsynopsisinfo>

	<funcprototype>

	    <funcdef>void <function>FcMatrixScale</function></funcdef>

		<paramdef>FcMatrix *<parameter>matrix</parameter></paramdef>

		<paramdef>double <parameter>sx</parameter></paramdef>

		<paramdef>double <parameter>dy</parameter></paramdef>

	</funcprototype>

	</funcsynopsis>

	</refsynopsisdiv>

	<refsect1><title>Description</title>

	    <para>

<function>FcMatrixScale</function> multiplies <parameter>matrix</parameter>

x values by <parameter>sx</parameter> and y values by

<parameter>dy</parameter>.  This is done by multiplying by

the matrix:

<programlisting>

   sx  0

   0   dy

</programlisting>

	    </para>

	</refsect1>

    </refentry>

   fontconfig/doc/func.sgml

   Copyright © 2003 Keith Packard

   Permission to use, copy, modify, distribute, and sell this software and its

   documentation for any purpose is hereby granted without fee, provided that

   the above copyright notice appear in all copies and that both that

   copyright notice and this permission notice appear in supporting

   documentation, and that the name of the author(s) not be used in

   advertising or publicity pertaining to distribution of the software without

   specific, written prior permission.  The authors make no

   representations about the suitability of this software for any purpose.  It

   is provided "as is" without express or implied warranty.

   THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

   EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR

   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

   DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

   TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

   PERFORMANCE OF THIS SOFTWARE.

 -->

    <refentry id="FcMatrixShear">

	<refmeta>

	    <refentrytitle>FcMatrixShear</refentrytitle>

	    <manvolnum>3</manvolnum>

	    <refmiscinfo class="software">Fontconfig &version;</refmiscinfo>

	</refmeta>

	<refnamediv>

	    <refname>FcMatrixShear</refname>

	    <refpurpose>Shear a matrix</refpurpose>

	</refnamediv>

	<refsynopsisdiv>

	<funcsynopsis>

	<funcsynopsisinfo>

#include <fontconfig/fontconfig.h>

	</funcsynopsisinfo>

	<funcprototype>

	    <funcdef>void <function>FcMatrixShear</function></funcdef>

		<paramdef>FcMatrix *<parameter>matrix</parameter></paramdef>

		<paramdef>double <parameter>sh</parameter></paramdef>

		<paramdef>double <parameter>sv</parameter></paramdef>

	</funcprototype>

	</funcsynopsis>

	</refsynopsisdiv>

	<refsect1><title>Description</title>

	    <para>

<function>FcMatrixShare</function> shears <parameter>matrix</parameter>

horizontally by <parameter>sh</parameter> and vertically by

<parameter>sv</parameter>.  This is done by multiplying by

the matrix:

<programlisting>

  1  sh

  sv  1

</programlisting>

	    </para>

	</refsect1>

    </refentry>