nx-X11/extras/fontconfig/doc/fontconfig-devel/r1563.html


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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
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>FcMatrixRotate</TITLE
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>FcMatrixRotate</H1
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><H2
>Name</H2
>FcMatrixRotate&nbsp;--&nbsp;Rotate a matrix</DIV
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><H2
>Synopsis</H2
><DIV
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><P
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><PRE
CLASS="FUNCSYNOPSISINFO"
>#include &lt;fontconfig.h&gt;
	</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>void FcMatrixRotate</CODE
>(FcMatrix *matrix, doublecos, doublesin);</CODE
></P
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><DIV
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><A
NAME="AEN1582"
></A
><H2
>Description</H2
><P
><CODE
CLASS="FUNCTION"
>FcMatrixRotate</CODE
> rotates <CODE
CLASS="PARAMETER"
>matrix</CODE
>
by the angle who's sine is <CODE
CLASS="PARAMETER"
>sin</CODE
> and cosine is
<CODE
CLASS="PARAMETER"
>cos</CODE
>.  This is done by multiplying by the
matrix:
<PRE
CLASS="PROGRAMLISTING"
>  cos -sin
  sin  cos</PRE
>
	    </P
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><H2
>Version</H2
><P
>Fontconfig version 2.3.2

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