<?php
include 'graph.php';
$graph = new graph(400,250);
$graph->parameter['path_to_fonts'] = 'fonts/';
$graph->parameter['title'] = 'Line/Area Chart & Double Y Axis';
$graph->parameter['x_label'] = '';
$graph->parameter['y_label_left'] = 'Items';
$graph->parameter['y_label_right'] = 'Totals';
$graph->parameter['legend'] = 'outside-right';
$graph->parameter['legend_border'] = 'black';
$graph->parameter['legend_offset'] = 4;
$graph->x_data = array('Fri', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri');
$graph->y_data['alpha'] = array(6, 7, 5, 5, 8, 9);
$graph->y_data['beta'] = array(2, 2, 4, 3, 4, 5);
$graph->y_data['total'] = array(8, 9 , 9 , 8 , 12, 14);
$graph->y_data['cummulative'] = array(8, 17, 26, 34, 46, 60);
// you can add new custom colours like this.
$graph->colour['new_colour1'] = ImageColorAllocate ($graph->image, 0x66, 0xFF, 0x66);
$graph->colour['new_colour2'] = ImageColorAllocate ($graph->image, 0xCC, 0xFF, 0xCC);
// format for each data set
$graph->y_format['alpha'] =
array('colour' => 'blue', 'line' => 'brush', 'legend' => 'Item Alpha', 'y_axis' => 'left');
$graph->y_format['beta'] =
array('colour' => 'red', 'line' => 'brush', 'legend' => 'Item Beta', 'y_axis' => 'left');
$graph->y_format['total'] =
array('colour' => 'new_colour1', 'area' => 'fill', 'legend' => 'Unit Total', 'y_axis' => 'right');
$graph->y_format['cummulative'] =
array('colour' => 'new_colour2', 'area' => 'fill', 'legend' => 'Cummulative Total', 'y_axis' => 'right');
$graph->parameter['x_offset'] = 0; // offset of x axis ticks from y_axis. can be set to zero as no bars.
$graph->parameter['x_axis_angle'] = 0;
$graph->parameter['y_max_left'] = 10; // left axis goes up to 10
$graph->parameter['y_max_right'] = 60; // right axis goes up to 60
$graph->parameter['y_resolution_left'] = 0; // no decimal places
$graph->parameter['y_decimal_left'] = 0; // ...
$graph->parameter['y_axis_text_left'] = 2; // print every other tick on left y axis
$graph->parameter['y_axis_text_right'] = 2; // print every other tick on right y axis
$graph->parameter['y_axis_gridlines'] = 11;
$graph->parameter['y_grid'] = 'line';
$graph->parameter['x_grid'] = 'none'; // no x grid
$graph->parameter['y_ticks_colour'] = 'none'; // no y axis ticks
$graph->parameter['inner_border_type'] = 'x-axis';
$graph->parameter['brush_size'] = 2;
$graph->parameter['shadow'] = 'none';
$graph->y_order = array('cummulative', 'total', 'alpha', 'beta'); // order in which to draw data sets.
// draw it.
$graph->draw();
?>
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