Gallery - Bar Chart

Make a bar chart.

Object: bar()

  • set_values( $v )
    An array of values. Each value can be a number, a bar_value or a null value.
  • append_value( $v )
    Appends a value (see set_values for details)
  • set_key( $text, $size )
  • set_colour( $colour )
  • set_alpha( $alpha )

To add more than one set of bars to a bar chart, see bar chart 2.

For details of how we changed the key text styles, see Line and Key.

This goes into the <head> of the page:

<script type="text/javascript" src="js/swfobject.js"></script>
<script type="text/javascript">

swfobject.embedSWF(
"open-flash-chart.swf", "my_chart",
"550", "200", "9.0.0", "expressInstall.swf",
{"data-file":"gallery/bar-chart.php"} );

</script>
This writes the chart into a div with id="my_chart", right click and view source to see it in action, [the tutorials have more details]

gallery/bar-chart.php
<?php

include '../php-ofc-library/open-flash-chart.php';

$title = new title( date("D M d Y") );

$bar = new bar();
$bar->set_values( array(9,8,7,6,5,4,3,2,1) );

$chart = new open_flash_chart();
$chart->set_title( $title );
$chart->add_element( $bar );

echo $chart->toPrettyString();
To see the data produced : gallery/bar-chart.php, then 'view source'.
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