function pmarg_test($call_SetMarginsPixels, $args_SetMarginsPixels, $call_SetPlotAreaPixels, $args_SetPlotAreaPixels, $return_margins)
{
global $data, $margins_override, $plotarea_override;
$p = new PHPlot_pv(PLOT_WIDTH, PLOT_HEIGHT);
$p->SetTitle("Unused Title Goes Here");
$p->SetDataType('data-data');
$p->SetDataValues($data);
$p->SetPlotType('lines');
$p->SetXTickLabelPos('none');
$p->SetXTickIncrement(1.0);
$p->SetYTickIncrement(10.0);
$p->SetYTickPos('both');
$p->SetYTickLabelPos('both');
$p->SetDrawXGrid(False);
$p->SetDrawYGrid(False);
$p->SetXTitle("Two Line\nX Axis Title");
$p->SetYTitle("Three Line\nY Axis\nTitle");
# Variant cases:
if ($call_SetMarginsPixels) {
call_user_func_array(array($p, 'SetMarginsPixels'), array_mask($margins_override, $args_SetMarginsPixels, 4));
}
if ($call_SetPlotAreaPixels) {
call_user_func_array(array($p, 'SetPlotAreaPixels'), array_mask($plotarea_override, $args_SetPlotAreaPixels, 4));
}
# Produce but don't output the image. Comment out to test the test.
$p->SetPrintImage(False);
# Produce the graph:
$p->DrawGraph();
# Return the resulting margins or coordinates, as requested.
$plot_area = $p->GET_plot_area();
if ($return_margins) {
return array($plot_area[0], PLOT_WIDTH - $plot_area[2], $plot_area[1], PLOT_HEIGHT - $plot_area[3]);
}
return $plot_area;
}
$errors = 0;
$mime_type = 'image/jpeg';
# Data arrays for 2 frames, text-data.
$data1 = array(array('', 1, 2, 3), array('', 2, 4, 6), array('', 3, 6, 9));
$data2 = array(array('', 2, 4, 6), array('', 3, 6, 9), array('', 4, 8, 6));
# Check the overall structure of a frame. Return True if OK, else False.
# Frame needs: boundary, content type and content length, then the image.
# This does nothing with the image (there is another test for that).
function check_frame($frame, $boundary)
{
global $mime_type;
return preg_match("--{$boundary}\\s", $frame) && preg_match("Content-Type: {$mime_type}\\si", $frame) && preg_match("Content-Length: (\\d*)\\si", $frame);
}
# Initial plot object setup:
$plot = new PHPlot_pv(640, 480);
$plot->SetDataType('text-data');
$plot->SetPlotType('lines');
$plot->SetFileFormat('jpg');
$plot->SetXTickLabelPos('none');
$plot->SetXTickPos('none');
$plot->SetXDataLabelPos('none');
$plot->SetPlotAreaWorld(NULL, 0, NULL, 10);
$plot->SetPrintImage(False);
# StartStream does no output, only headers (which we cannot catch using the
# CLI), so just check the variables it sets:
$plot->StartStream();
$boundary = $plot->GET_stream_boundary();
# Check: Stream frame header includes content-type with expected MIME type
$sfh = $plot->GET_stream_frame_header();
if (!preg_match("Content-Type: {$mime_type}", $sfh)) {
fwrite(STDERR, "Error: Did not match Content type in header:\n{$sfh}\n");
<?php
# $Id$
# Testing phplot - Default TT font (1a): No default path or font set, usettf
require_once 'phplot.php';
// Extend PHPlot class to allow access to protected variable(s):
class PHPlot_pv extends PHPlot
{
public function GET_default_ttfont()
{
return $this->default_ttfont;
}
}
$data = array(array('A', 3, 6), array('B', 2, 4), array('C', 1, 2));
$p = new PHPlot_pv(800, 800);
$p->SetDataType('text-data');
$p->SetDataValues($data);
$p->SetPlotType('bars');
$p->SetTitle('TTF default not set, SetUseTTF(true)');
$p->SetXTitle('X Axis Title');
$p->SetYTitle('Y Axis Title');
$p->SetUseTTF(True);
$p->DrawGraph();
fwrite(STDERR, "OK defaultfont1a: default_ttfont=" . $p->GET_default_ttfont() . "\n");
$n_shapes = count($shapes);
# Make offset diagonal lines, one for each shape:
$ppl = 6;
# Number of points per line.
$data = array();
for ($x = 0; $x < $ppl; $x++) {
$row = array('', $x);
$offset = $n_shapes + $ppl - $x - 2;
for ($j = 0; $j < $n_shapes; $j++) {
$row[] = $offset - $j;
}
$data[] = $row;
}
$plot->SetImageBorderType('plain');
$plot->SetPlotType('linepoints');
$plot->SetDataType('data-data');
$plot->SetDataValues($data);
# Main plot title:
$plot->SetTitle("Linepoints Plot - Showing {$n_shapes} Point Shapes\n{$title_suffix}");
# Increase X range to make room for the legend.
$plot->SetPlotAreaWorld(0, 0, $ppl, $n_shapes + $ppl - 2);
# Turn off tick labels and ticks - not used for this plot.
$plot->SetXTickLabelPos('none');
$plot->SetXTickPos('none');
$plot->SetYTickLabelPos('none');
$plot->SetYTickPos('none');
# Need some different colors;
$plot->SetDataColors($colors);
# If not showing default shapes, show all shapes:
if (!isset($use_default_shapes)) {
$plot->SetPointShapes($shapes);