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Add different data to the graph.
Each dot gets its attributes from the line settings. For example, setting:
$line_dot->set_dot_size( 3 );
actually sets each dots size attribute to 3. You can override these using
dot_value( $value, $colour ) (search the PHP source code to see the methods
avaible in this object)
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/adv-line-dot.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/adv-line-dot.php
<?php
include '../php-ofc-library/open-flash-chart.php';
$data = array();
for( $i=0; $i<8; $i+=0.2 )
{
$val = sin($i) + 1.5;
//
// OK, lets do something interesting.
// any value above 1.75 we will plot
// in RED
//
if( $val > 1.75 )
{
$d = new dot($val);
$data[] = $d->colour('#D02020')->tooltip('#val#<br>Your text here');
}
else
$data[] = $val;
}
$default_dot = new dot();
$default_dot->size(3)->colour('#DFC329')->tooltip( '#x_label#:#val#' );
$line_dot = new line();
$line_dot->set_default_dot_style($default_dot);
$line_dot->set_width( 2 );
$line_dot->set_colour( '#DFC329' );
$line_dot->set_values( $data );
$y = new y_axis();
$y->set_range( 0, 3, 1 );
$chart = new open_flash_chart();
$chart->set_title( new title( 'Advanced dot lines' ) );
$chart->set_y_axis( $y );
//
// here we add our data sets to the chart:
//
$chart->add_element( $line_dot );
echo $chart->toPrettyString();
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