<?php
require_once("../lib/phpchartdir.php");

# This script can draw different charts depending on the chartIndex
$chartIndex = (int)($_REQUEST["img"]);

# The value to display on the meter
$value = 74.25;

# Bar colors of the meters
$barColor = array(0x2299ff, 0x00ee00, 0xaa66ee, 0xff7711);

# Create a LinearMeter object of size 70 x 240 pixels with very light grey (0xeeeeee) backgruond and
# a grey (0xaaaaaa) 3-pixel thick rounded frame
$m = new LinearMeter(70, 240, 0xeeeeee, 0xaaaaaa);
$m->setRoundedFrame(Transparent);
$m->setThickFrame(3);

# This example demonstrates putting the text labels at the left or right side of the meter scale,
# and putting the color scale on the same side as the labels or on opposite side.
$alignment = array(Left, Left, Right, Right);
$meterXPos = array(28, 38, 12, 21);
$labelGap = array(2, 12, 10, 2);
$colorScalePos = array(53, 28, 36, 10);

# Configure the position of the meter scale and which side to put the text labels
$m->setMeter($meterXPos[$chartIndex], 18, 20, 205, $alignment[$chartIndex]);

# Set meter scale from 0 - 100, with a tick every 10 units
$m->setScale(0, 100, 10);

# To put the color scale on the same side as the text labels, we need to increase the gap between
# the labels and the meter scale to make room for the color scale
$m->setLabelPos(false, $labelGap[$chartIndex]);

# Add a smooth color scale to the meter
$smoothColorScale = array(0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100, 0xff0000);
$m->addColorScale($smoothColorScale, $colorScalePos[$chartIndex], 6);

# Add a bar from 0 to value with glass effect and 4 pixel rounded corners
$m->addBar(0, $value, $barColor[$chartIndex], glassEffect(NormalGlare, Left), 4);

# Output the chart
header("Content-type: image/png");
print($m->makeChart2(PNG));
?>