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<H1><A NAME="SECTION0001000000000000000000">
10 Range plots</A>
</H1>
<A NAME="module-range-plot"></A>
<P>
<dl><dt><b><span class="typelabel">class</span> <tt id='l2h-186' xml:id='l2h-186' class="class">range_plot.T</tt></b>
<dd>
A range plot is similar to line plots ( see Section <A href="module-line-plot.html#module-line-plot">9</A>), but
it fills regions, instead of drawing line.
<P>
<IMG
WIDTH="391" HEIGHT="295" ALIGN="BOTTOM" BORDER="0"
SRC="./rangetest.png"
ALT="Image rangetest">
<P>
<b> Sample range plot </b>
<P>
Below is the source code that produces the above chart.
../demos/rangetest.py
<P>
<div class="verbatim"><pre>
from pychart import *
data = [ (0, 10, 30, 40, 60), (10, 20, 40, 50, 55), (20, 10, 35, 38, 43),
(30, 8, 30, 35, 39), (40, 8, 20, 28, 39) ]
ar = <a href="module-area.html">area.T</a>(x_axis = <a href="module-axis.html">axis.</a>X(label="X axis"),
y_grid_interval = 10, y_grid_style = <a href="module-line-style.html">line_style.</a>white,
y_axis = <a href="module-axis.html">axis.</a>Y(label="Y axis"),
y_grid_over_plot=1, legend = <a href="module-legend.html">legend.</a>T())
if <a href="options.html">theme.</a>use_color:
colors = [ <a href="module-fill-style.html">fill_style.</a>darkseagreen, <a href="module-fill-style.html">fill_style.</a>white, <a href="module-fill-style.html">fill_style.</a>brown ]
else:
colors = [ <a href="module-fill-style.html">fill_style.</a>gray90, <a href="module-fill-style.html">fill_style.</a>white, <a href="module-fill-style.html">fill_style.</a>gray50 ]
ar.add_plot(<a href="module-range-plot.html">range_plot.T</a>(label="foo", data=data, fill_style = colors[0]))
ar.add_plot(<a href="module-range-plot.html">range_plot.T</a>(label="bar", data=data, min_col=2, max_col=3,
fill_style = colors[1]))
ar.add_plot(<a href="module-range-plot.html">range_plot.T</a>(label="baz", data=data, min_col=3, max_col=4,
fill_style = colors[2]))
ar.draw()
</pre></div>
</dl>
<P>
This class supports the following attributes:
<P>
<dl><dt><b><tt id='l2h-187' xml:id='l2h-187' class="member">data</tt></b></dt>
<dd>
<b>Type:</b> any
<b>Default:</b> None.
<P>
Specifies the data points. See Section <A href="module-chart-data.html#module-chart-data">5</A>
</dl>
<dl><dt><b><tt id='l2h-188' xml:id='l2h-188' class="member">fill_style</tt></b></dt>
<dd>
<b>Type:</b> fill_style.T
(see Section <A href="module-fill-style.html#module-fill-style">16</A>)
<b>Default:</b> fill_style.default.
<P>
</dl>
<dl><dt><b><tt id='l2h-189' xml:id='l2h-189' class="member">label</tt></b></dt>
<dd>
<b>Type:</b> str
<b>Default:</b> "???".
<P>
The label to be displayed in the legend. See Section <A href="module-legend.html#module-legend">6.3</A>, See Section <A href="module-font.html#module-font">17</A>
</dl>
<dl><dt><b><tt id='l2h-190' xml:id='l2h-190' class="member">line_style</tt></b></dt>
<dd>
<b>Type:</b> line_style.T
(see Section <A href="module-line-style.html#module-line-style">14</A>)
<b>Default:</b> line_style.black.
<P>
The style of the boundary line.
</dl>
<dl><dt><b><tt id='l2h-191' xml:id='l2h-191' class="member">max_col</tt></b></dt>
<dd>
<b>Type:</b> int
<b>Default:</b> 2.
<P>
The upper bound of the sweep is extracted from this column of data.
</dl>
<dl><dt><b><tt id='l2h-192' xml:id='l2h-192' class="member">min_col</tt></b></dt>
<dd>
<b>Type:</b> int
<b>Default:</b> 1.
<P>
The lower bound of the sweep is extracted from this column of data.
</dl>
<dl><dt><b><tt id='l2h-193' xml:id='l2h-193' class="member">xcol</tt></b></dt>
<dd>
<b>Type:</b> int
<b>Default:</b> 0.
<P>
The column, within attribute "data", from which the X values of sample points are extracted. See Section <A href="module-chart-data.html#module-chart-data">5</A>
</dl>
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<span class="release-info">Documentation released on July 2, 2005.</span>
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