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p12
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images: Add scripts for generating plots of ceil(), floor(), trunc() and round()
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4 files changed

+162
-1
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4 files changed

+162
-1
lines changed

images/fix_svg.xsl renamed to images/fix_svg-dot.xsl

File renamed without changes.

‎images/fix_svg-math.xsl‎

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<?xml version="1.0" encoding="UTF-8"?>
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<xsl:stylesheet version="1.0"
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xmlns="http://www.w3.org/2000/svg"
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xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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xmlns:str="http://exslt.org/strings"
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xmlns:svg="http://www.w3.org/2000/svg"
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>
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<xsl:output indent="yes"
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method="xml"
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encoding="UTF-8"
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standalone="no"
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doctype-public="-//W3C//DTD SVG 1.1//EN"
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doctype-system="http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"/>
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<xsl:template match="node()|@*">
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<xsl:copy>
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<xsl:apply-templates select="node()|@*"/>
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</xsl:copy>
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</xsl:template>
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<xsl:template match="/svg:svg/@width">
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<xsl:attribute name="width">
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<xsl:value-of select="str:replace(.,'pt','px')"/>
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</xsl:attribute>
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</xsl:template>
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<xsl:template match="/svg:svg/@height">
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<xsl:attribute name="height">
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<xsl:value-of select="str:replace(.,'pt','px')"/>
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</xsl:attribute>
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</xsl:template>
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</xsl:stylesheet>

images/generate-dot.sh renamed to images/generate.sh

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tmpfile="output/$i.tmp"
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dot -Tsvg -o$tmpfile $infile
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dot -Timap $infile | sed 1d | awk '{sub(/,/, " ", $3); sub(/,/, " ", $4); print $1" "$3" "$4" [["$2"]]"; };' > $mapfile
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xsltproc --novalid fix_svg.xsl $tmpfile > $outfile
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xsltproc --novalid fix_svg-dot.xsl $tmpfile > $outfile
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rm $tmpfile
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done
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python math-rounding.py

‎images/math-rounding.py‎

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#!/usr/bin/python
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import pylab
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import os
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DATA = (
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( 'floor',
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( (-3, -3, 'T'),
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(-2, -3, 'F'),
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(-2, -2, 'T'),
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(-1, -2, 'F'),
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(-1, -1, 'T'),
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( 0, -1, 'F'),
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( 0, 0, 'T'),
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( 1, 0, 'F'),
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( 1, 1, 'T'),
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( 2, 1, 'F'),
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( 2, 2, 'T'),
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( 3, 2, 'F'),
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( 3, 3, 'T'),
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( 4, 3, 'F')
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)
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),
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( 'ceil',
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( (-4, -3, 'F'),
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(-3, -3, 'T'),
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(-3, -2, 'F'),
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(-2, -2, 'T'),
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(-2, -1, 'F'),
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(-1, -1, 'T'),
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(-1, 0, 'F'),
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( 0, 0, 'T'),
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( 0, 1, 'F'),
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( 1, 1, 'T'),
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( 1, 2, 'F'),
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( 2, 2, 'T'),
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( 2, 3, 'F'),
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( 3, 3, 'T')
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)
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),
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( 'trunc',
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( (-4, -3, 'F'),
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(-3, -3, 'T'),
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(-3, -2, 'F'),
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(-2, -2, 'T'),
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(-2, -1, 'F'),
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(-1, -1, 'T'),
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(-1, 0, 'F'),
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( 1, 0, 'F'),
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( 1, 1, 'T'),
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( 2, 1, 'F'),
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( 2, 2, 'T'),
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( 3, 2, 'F'),
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( 3, 3, 'T'),
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( 4, 3, 'F')
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)
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),
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( 'round_away_zero',
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( (-3.5, -3, 'F'),
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(-2.5, -3, 'T'),
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(-2.5, -2, 'F'),
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(-1.5, -2, 'T'),
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(-1.5, -1, 'F'),
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(-0.5, -1, 'T'),
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(-0.5, 0, 'F'),
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( 0.5, 0, 'F'),
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( 0.5, 1, 'T'),
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( 1.5, 1, 'F'),
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( 1.5, 2, 'T'),
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( 2.5, 2, 'F'),
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( 2.5, 3, 'T'),
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( 3.5, 3, 'F'),
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( 3.5, 4, 'T')
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)
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)
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)
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font = {'family' : 'DejaVu Serif',
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'weight' : 'normal',
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'size' : 9}
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pylab.rc('font', **font)
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for i in xrange(len(DATA)):
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(name,idata) = DATA[i]
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fig = pylab.figure(figsize=(200.0/72.0,200.0/72.0))
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ax = fig.add_subplot(111)
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for j in xrange(len(idata)/2):
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(x1,y1,fill) = idata[j*2]
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(x2,y2,fill) = idata[j*2+1]
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x = (x1, x2)
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y = (y1, y2)
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l = ax.plot(x, y)
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pylab.setp(l, 'color', '#0000FF')
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pylab.setp(l, 'linewidth', 0.5)
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for j in xrange(len(idata)):
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(x,y,fill) = idata[j]
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l = ax.plot(x, y, marker='o')
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pylab.setp(l, 'markersize', 7.5)
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pylab.setp(l, 'markeredgewidth', 0.5)
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pylab.setp(l, 'markeredgecolor', '#0000FF')
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if fill == 'T':
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pylab.setp(l, 'markerfacecolor', '#0000FF')
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else:
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pylab.setp(l, 'markerfacecolor', 'white')
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ax.grid(True)
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ax.set_axisbelow(True)
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ax.tick_params(pad = 7.5)
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ax.set_aspect(1.0)
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ax.set_xlim((-3.5, 3.5))
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ax.set_ylim((-3.5, 3.5))
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outfile = 'output/math-' + name + '.svg'
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tmpfile = outfile + '.tmp'
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pylab.savefig(tmpfile, format='svg')
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os.system('xsltproc --novalid fix_svg-math.xsl ' + tmpfile + ' > ' + outfile)
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os.system('rm ' + tmpfile)
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pylab.close()
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