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<title>en:pie [BASIC 256 - Language Documentation]</title>
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<h1><a href="start.html" accesskey="h" title="[H]"><img src="lib/tpl/dokuwiki/images/logo.png" width="64" height="64" alt="" /> <span>BASIC 256 - Language Documentation</span></a></h1>
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<div class="youarehere"><span class="bchead">You are here: </span><span class="home"><bdi><a href="start.html" class="wikilink1" title="start">start</a></bdi></span> » <bdi><a href="en_start.html" class="wikilink1" title="en:start">en</a></bdi> » <bdi><span class="curid"><a href="en_pie.html" class="wikilink1" title="en:pie">pie</a></span></bdi></div>
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<h3 class="toggle">Table of Contents</h3>
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<ul class="toc">
<li class="level2"><div class="li"><a href="en_pie.html#pie_statement">Pie (Statement)</a></div>
<ul class="toc">
<li class="level3"><div class="li"><a href="en_pie.html#format">Format</a></div></li>
<li class="level3"><div class="li"><a href="en_pie.html#description">Description</a></div></li>
<li class="level3"><div class="li"><a href="en_pie.html#example">Example</a></div></li>
<li class="level3"><div class="li"><a href="en_pie.html#see_also">See Also</a></div></li>
<li class="level3"><div class="li"><a href="en_pie.html#history">History</a></div></li>
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<h2 class="sectionedit1" id="pie_statement">Pie (Statement)</h2>
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<h3 class="sectionedit2" id="format">Format</h3>
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<p>
<strong>pie</strong> <em><a class="explain" href="en_expressions.html#numeric_expressions">x_expr</a></em>, <em><a class="explain" href="en_expressions.html#numeric_expressions">y_expr</a></em>, <em><a class="explain" href="en_expressions.html#numeric_expressions">width_expr</a></em>, <em><a class="explain" href="en_expressions.html#numeric_expressions">height_expr</a></em>, <em><a class="explain" href="en_expressions.html#numeric_expressions">startangle_expr</a></em>, <em><a class="explain" href="en_expressions.html#numeric_expressions">widthangle_expr</a></em><br/>
<strong>pie</strong> ( <em><a class="explain" href="en_expressions.html#numeric_expressions">x_expr</a></em>, <em><a class="explain" href="en_expressions.html#numeric_expressions">y_expr</a></em>, <em><a class="explain" href="en_expressions.html#numeric_expressions">width_expr</a></em>, <em><a class="explain" href="en_expressions.html#numeric_expressions">height_expr</a></em>, <em><a class="explain" href="en_expressions.html#numeric_expressions">startangle_expr</a></em>, <em><a class="explain" href="en_expressions.html#numeric_expressions">widthangle_expr</a></em> )
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<h3 class="sectionedit3" id="description">Description</h3>
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<p>
Draws a pie shaped slice inside the bounding rectangle defined by <em><a class="explain" href="en_expressions.html#numeric_expressions">x_expr</a></em>, <em><a class="explain" href="en_expressions.html#numeric_expressions">y_expr</a></em>, <em><a class="explain" href="en_expressions.html#numeric_expressions">width_expr</a></em>, and <em><a class="explain" href="en_expressions.html#numeric_expressions">height_expr</a></em>. The center of the pie will be in the center of the rectangle. The angles are defined from the 12 o'clock position in a clockwise direction in radians.
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<h3 class="sectionedit4" id="example">Example</h3>
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<pre class="code"># pie_chart.kbs
# 2012-12-29 j.m.reneau
#
# example of pie statement added on 0.9.9.25
dim data(5)
data = {1,3,5,7,10}
dim colors(5)
colors = {red,blue,green,yellow,cyan}
total = 0
for n = 0 to data[?]-1
total += data[n]
next n
clg
font "Arial", 20,100
startangle = 0
for n = 0 to data[?]-1
# calculate the with of the pie slice in radians
slicesize = 2*pi*data[n]/total
color colors[n]
pie 50,50,200,200,startangle,slicesize
# draw the value's number outside the pie
text 140+sin(startangle+slicesize*.5)*120, 140-cos(startangle+slicesize*.5)*120, data[n]
startangle += slicesize
next n</pre>
<p>
draws<br/>
<a href="http://doc.basic256.org/lib/exe/detail.php?id=en_pie&media=pie_chart.png" class="media" title="pie_chart.png"><img src="lib/exe/pie_chart.png" class="media" title="Pie_Chart" alt="Pie_Chart" /></a>
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<h3 class="sectionedit5" id="see_also">See Also</h3>
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<a href="en_arc.html" class="wikilink1" title="en:arc">Arc</a>, <a href="en_chord.html" class="wikilink1" title="en:chord">Chord</a>, <a href="en_circle.html" class="wikilink1" title="en:circle">Circle</a>, <a href="en_getpenwidth.html" class="wikilink1" title="en:getpenwidth">GetPenWidth</a>, <a href="en_line.html" class="wikilink1" title="en:line">Line</a>, <a href="en_penwidth.html" class="wikilink1" title="en:penwidth">PenWidth</a>, <span class="curid"><a href="en_pie.html" class="wikilink1" title="en:pie">Pie</a></span>, <a href="en_plot.html" class="wikilink1" title="en:plot">Plot</a>, <a href="en_poly.html" class="wikilink1" title="en:poly">Poly</a>, <a href="en_rect.html" class="wikilink1" title="en:rect">Rect</a>, <a href="en_stamp.html" class="wikilink1" title="en:stamp">Stamp</a>
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<h3 class="sectionedit9" id="history">History</h3>
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<div class="table sectionedit10"><table class="inline">
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<td class="col0">0.9.9.25</td><td class="col1">New To Version</td>
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<div class="docInfo"><bdi>en/pie.txt</bdi> · Last modified: 2014/02/08 19:29 by <bdi>admin</bdi></div>
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