<?php
/*
 * This work is hereby released into the Public Domain.
 * To view a copy of the public domain dedication,
 * visit http://creativecommons.org/licenses/publicdomain/ or send a letter to
 * Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
 *
 */

require_once "../../BarPlot.class.php";

$graph = new Graph(280, 280);

$graph->setAntiAliasing(TRUE);

$group = new PlotGroup;
$group->setSpace(6, 6, 5, 5);
$group->setBackgroundGradient(
	new LinearGradient(
		new Color(235, 235, 235),
		new White(),
		0
	)
);
$group->setPadding(40, 10, 10, 50);

$group->axis->left->setLabelPrecision(2);
$group->axis->bottom->label->hide(TRUE);
$group->axis->bottom->hideTicks(TRUE);

$group->grid->setType(Line::DASHED);
$group->grid->hideHorizontal(TRUE);

$gradients = array(
	new LinearGradient(
		new Color(30, 30, 160, 10), new Color(120, 120, 160, 10), 0
	),
	new LinearGradient(
		new Color(30, 160, 30, 10), new Color(120, 160, 120, 10), 0
	),
	new LinearGradient(
		new Color(160, 30, 30, 10), new Color(160, 120, 120, 10), 0
	)
);

for($n = 0; $n < 3; $n++) {

	$x = array();
	
	for($i = 0; $i < 6; $i++) {
		$x[] = (cos($i * M_PI / 100) / ($n + 1) * mt_rand(600, 900) / 1000 - 0.5) * (($n%2) ? -0.5 : 1) + (($n%2) ? -0.4 : 0);
	}
	
	$plot = new BarPlot($x, $n + 1, 3);
	
	$plot->setXAxis(Plot::BOTTOM);
	
	$plot->barShadow->setSize(1);
	$plot->barShadow->setPosition(Shadow::RIGHT_TOP);
	$plot->barShadow->setColor(new Color(160, 160, 160, 10));
	
	$plot->barBorder->setColor($gradients[$n]->from);

	$plot->setBarGradient($gradients[$n]);
	
	$plot->setBarSpace(2);
	
	$group->legend->add($plot, 'Bar#'.($n + 1), Legend::BACKGROUND);
	
	$group->add($plot);
	
}

$group->legend->setModel(Legend::MODEL_BOTTOM);
$group->legend->setPosition(NULL, 0.86);
$group->legend->shadow->hide();

$graph->add($group);
$graph->draw();
?>