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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Mandelbrot-set/XSLT/mandelbrot-set.xslt Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<!-- XSLT Mandelbrot - written by Joel Yliluoma 2007, http://iki.fi/bisqwit/ -->
<xsl:output method="html" indent="no"
doctype-public="-//W3C//DTD HTML 4.01//EN"
doctype-system="http://www.w3.org/TR/REC-html40/strict.dtd"
/>
<xsl:template match="/fractal">
<html>
<head>
<title>XSLT fractal</title>
<style type="text/css">
body { color:#55F; background:#000 }
pre { font-family:monospace; font-size:7px }
pre span { background:<xsl:value-of select="background" /> }
</style>
</head>
<body>
<div style="position:absolute;top:20px;left:20em">
Copyright © 1992,2007 Joel Yliluoma
(<a href="http://iki.fi/bisqwit/">http://iki.fi/bisqwit/</a>)
</div>
<h1 style="margin:0px">XSLT fractal</h1>
<pre><xsl:call-template name="bisqwit-mandelbrot" /></pre>
</body>
</html>
</xsl:template>
<xsl:template name="bisqwit-mandelbrot"
><xsl:call-template name="bisqwit-mandelbrot-line">
<xsl:with-param name="y" select="y/min"/>
</xsl:call-template
></xsl:template>
<xsl:template name="bisqwit-mandelbrot-line"
><xsl:param name="y"
/><xsl:call-template name="bisqwit-mandelbrot-column">
<xsl:with-param name="x" select="x/min"/>
<xsl:with-param name="y" select="$y"/>
</xsl:call-template
><xsl:if test="$y < y/max"
><br
/><xsl:call-template name="bisqwit-mandelbrot-line">
<xsl:with-param name="y" select="$y + y/step"/>
</xsl:call-template
></xsl:if
></xsl:template>
<xsl:template name="bisqwit-mandelbrot-column"
><xsl:param name="x"
/><xsl:param name="y"
/><xsl:call-template name="bisqwit-mandelbrot-slot">
<xsl:with-param name="x" select="$x" />
<xsl:with-param name="y" select="$y" />
<xsl:with-param name="zr" select="$x" />
<xsl:with-param name="zi" select="$y" />
</xsl:call-template
><xsl:if test="$x < x/max"
><xsl:call-template name="bisqwit-mandelbrot-column">
<xsl:with-param name="x" select="$x + x/step"/>
<xsl:with-param name="y" select="$y" />
</xsl:call-template
></xsl:if
></xsl:template>
<xsl:template name="bisqwit-mandelbrot-slot"
><xsl:param name="x"
/><xsl:param name="y"
/><xsl:param name="zr"
/><xsl:param name="zi"
/><xsl:param name="iter" select="0"
/><xsl:variable name="zrsqr" select="($zr * $zr)"
/><xsl:variable name="zisqr" select="($zi * $zi)"
/><xsl:choose>
<xsl:when test="(4*scale*scale >= $zrsqr + $zisqr) and (maxiter > $iter+1)"
><xsl:call-template name="bisqwit-mandelbrot-slot">
<xsl:with-param name="x" select="$x" />
<xsl:with-param name="y" select="$y" />
<xsl:with-param name="zi" select="(2 * $zr * $zi) div scale + $y" />
<xsl:with-param name="zr" select="($zrsqr - $zisqr) div scale + $x" />
<xsl:with-param name="iter" select="$iter + 1" />
</xsl:call-template
></xsl:when>
<xsl:otherwise
><xsl:variable name="magnitude" select="magnitude[@value=$iter]"
/><span style="color:{$magnitude/color}"
><xsl:value-of select="$magnitude/symbol"
/></span></xsl:otherwise>
</xsl:choose
></xsl:template>
</xsl:stylesheet>