8ec98c9f
 Guillaume
MAJ
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
<?php // content="text/plain; charset=utf-8"
require_once ('jpgraph/jpgraph.php');
require_once ('jpgraph/jpgraph_line.php');
require_once ('jpgraph/jpgraph_bar.php');
function toFahrenheit($aVal) {
return round(($aVal*9/5)+32,2);
}
function toCelcius($aVal) {
return round(($aVal-32)*5/9,2);
}
$datay =array(2,3,8,19,7,17,6,22);
// Create the graph.
$graph = new Graph(400,280);
// Slightly bigger margins than default to make room for titles
$graph->SetMargin(50,60,40,45);
$graph->SetMarginColor('white');
// Setup the scales for X,Y and Y2 axis
$graph->SetScale("intlin"); // X and Y axis
$graph->SetY2Scale("lin"); // Y2 axis
// Overall graph title
$graph->title->Set('Synchronized Y & Y2 scales');
$graph->title->SetFont(FF_ARIAL,FS_BOLD,12);
// Title for X-axis
$graph->xaxis->title->Set('Measurement');
$graph->xaxis->title->SetMargin(5);
$graph->xaxis->title->SetFont(FF_ARIAL,FS_NORMAL,11);
// Create Y data set
$lplot = new LinePlot($datay);
$graph->yaxis->title->Set('Celcius (C)');
$graph->yaxis->title->SetMargin(5);
$graph->yaxis->title->SetFont(FF_ARIAL,FS_NORMAL,11);
// ... and add the plot to the Y-axis
$graph->Add($lplot);
// Create Y2 scale data set
$l2plot = new LinePlot($datay);
$l2plot->SetWeight(0);
$graph->y2axis->title->Set('Fahrenheit (F)');
$graph->y2axis->title->SetMargin(5); // Some extra margin to clear labels
$graph->y2axis->title->SetFont(FF_ARIAL,FS_NORMAL,11);
$graph->y2axis->SetLabelFormatCallback('toFahrenheit');
$graph->y2axis->SetColor('navy');
// ... and add the plot to the Y2-axis
$graph->AddY2($l2plot);
$graph->Stroke();
?>
|