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<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><title>5.33. Example - Linepoints Plot with Data Value Labels</title><link rel="stylesheet" type="text/css" href="phplotdoc.css" /><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /><link rel="home" href="index.html" title="PHPlot Reference Manual" /><link rel="up" href="examples.html" title="Chapter 5. PHPlot Examples" /><link rel="prev" href="ex-ohlccandlesticks2.html" title="5.32. Example - Filled Candlesticks OHLC (Open, High, Low, Close) Financial Plot" /><link rel="next" href="ex-outbreak.html" title="5.34. Example - Overlaying Plots" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">5.33. Example - Linepoints Plot with Data Value Labels</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ex-ohlccandlesticks2.html">Prev</a> </td><th width="60%" align="center">Chapter 5. PHPlot Examples</th><td width="20%" align="right"> <a accesskey="n" href="ex-outbreak.html">Next</a></td></tr></table><hr /></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="ex-linepoints2"></a>5.33. Example - Linepoints Plot with Data Value Labels</h2></div></div></div><p>
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This example shows a linepoints plot with data value labels. These are
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text strings which show the Y value above each point.
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(This feature was implemented for lines, points, and linepoints plots
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in PHPlot-5.3.0.)
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Because the Y values are shown with the data value labels, we have chosen
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to turn off the Y axis ticks and tick labels, which would be somewhat
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redundant.
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This example also has data label lines
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(see <a class="xref" href="SetDrawXDataLabelLines.html" title="SetDrawXDataLabelLines"><span class="refentrytitle">SetDrawXDataLabelLines</span></a>),
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which are the lines drawn from the X axis up to the data points, to help
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associate the point with the X axis label.
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</p><div class="example"><a id="example-linepoints2"></a><p class="title"><strong>Example 5.33. Linepoints Plot with Data Value Labels</strong></p><div class="example-contents"><div class="informalfigure"><div class="mediaobject"><img src="examples/linepoints2.png" alt="Linepoints Plot with Data Value Labels Example" /></div></div><pre class="programlisting"><?php
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# PHPlot Example: Linepoints plot with Data Value Labels
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require_once 'phplot.php';
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$data = array(
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array('1995', 135),
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array('1996', ''), // Missing data point
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array('1997', ''),
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array('1998', ''),
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array('1999', ''),
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array('2000', 225),
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array('2001', ''),
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array('2002', ''),
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array('2003', 456),
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array('2004', 420),
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array('2005', 373),
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array('2006', 300),
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array('2007', 255),
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array('2008', 283),
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);
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$plot = new PHPlot(800, 600);
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$plot->SetImageBorderType('plain'); // Improves presentation in the manual
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$plot->SetPlotType('linepoints');
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$plot->SetDataType('text-data');
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$plot->SetDataValues($data);
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$plot->SetTitle("US Federal Emergency Food Assistance, 1995 - 2008\n"
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. "(in $ millions)");
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# Turn on Y data labels:
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$plot->SetYDataLabelPos('plotin');
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# Turn on X data label lines (drawn from X axis up to data point):
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$plot->SetDrawXDataLabelLines(True);
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# With Y data labels, we don't need Y ticks, Y tick labels, or grid lines.
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$plot->SetYTickLabelPos('none');
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$plot->SetYTickPos('none');
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$plot->SetDrawYGrid(False);
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# X tick marks are meaningless with this data:
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$plot->SetXTickPos('none');
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$plot->SetXTickLabelPos('none');
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$plot->DrawGraph();
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</pre></div></div><br class="example-break" /></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ex-ohlccandlesticks2.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="examples.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ex-outbreak.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">5.32. Example - Filled Candlesticks OHLC (Open, High, Low, Close) Financial Plot </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> 5.34. Example - Overlaying Plots</td></tr></table></div></body></html>
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