rotatedline.php

一个绝对棒的报表绘图软件

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

#
#    We use a random table to simulate generating 12 months of data
#

# Create the random table object with 4 cols * 12 rows, using 3 as seed
$rantable = new RanTable(3, 4, 12);

# Set the 1st column to be the 12 months of year 2002
$rantable->setDateCol(0, chartTime(2002, 1, 1), 86400 * 30);

# Set the 2nd, 3rd and 4th columns to be random numbers starting from 125, 75, and
# 100 respectively. The change between rows is set to -35 to + 35. The minimum value
# of any cell is 0.
$rantable->setCol(1, 125, -35, 35, 0);
$rantable->setCol(2, 75, -35, 35, 0);
$rantable->setCol(3, 100, -35, 35, 0);

# Get the 1st column (time) as the x data
$dataX = $rantable->getCol(0);

# Get the 2nd, 3rd and 4th columns as 3 data sets
$dataY0 = $rantable->getCol(1);
$dataY1 = $rantable->getCol(2);
$dataY2 = $rantable->getCol(3);

# Create a XYChart object of size 360 x 400 pixels
$c = new XYChart(360, 400);

# Add a title to the chart
$c->addTitle("<*underline=2*>Rotated Line Chart Demo", "timesbi.ttf", 14);

# Set the plotarea at (60, 75) and of size 190 x 320 pixels. Turn on both horizontal
# and vertical grid lines with light grey color (0xc0c0c0)
$plotAreaObj = $c->setPlotArea(60, 75, 190, 320);
$plotAreaObj->setGridColor(0xc0c0c0, 0xc0c0c0);

# Add a legend box at (270, 75)
$c->addLegend(270, 75);

# Swap the x and y axis to become a rotated chart
$c->swapXY();

# Set the y axis on the top side (right + rotated = top)
$c->setYAxisOnRight();

# Add a title to the y axis
$c->yAxis->setTitle("Throughput (MBytes)");

# Reverse the x axis so it is pointing downwards
$c->xAxis->setReverse();

# Add a line chart layer using the given data
$layer = $c->addLineLayer2();
$layer->setXData($dataX);
$layer->addDataSet($dataY0, 0xff0000, "Server A");
$layer->addDataSet($dataY1, 0x338033, "Server B");
$layer->addDataSet($dataY2, 0x0000ff, "Server C");

# Set the line width to 2 pixels
$layer->setLineWidth(2);

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