Subversion Repositories cheapmusic

<?php

# PHPlot / contrib / prune_labels : Example

# $Id: prune_labels.example.php 453 2009-12-09 03:45:53Z lbayuk $

# This produces 250 data points with date-formatted labels, and sets

# a max of 20 labels to display.

require_once 'phplot.php';

require_once 'prune_labels.php';

$base = mktime(12, 0, 0, 1, 1, 2000);

$data = array();

for ($i = 0; $i < 250; $i++) {

    $data[] = array(86400 * $i + $base, $i, $i * 0.20);

}

# Show no more than 20 labels:

prune_labels($data, 20);

$p = new PHPlot(800, 600);

$p->SetTitle('Example - pruned data labels');

$p->SetDataType('data-data');

$p->SetDataValues($data);

$p->SetXLabelType('time', '%Y-%m-%d');

$p->SetXLabelAngle(90);

$p->SetXDataLabelPos('plotdown');

$p->SetXTickLabelPos('none');

$p->SetXTickPos('none');

$p->SetDrawXGrid(False);

$p->SetDrawYGrid(False);

$p->SetPlotType('lines');

$p->DrawGraph();