Added JPGraph v3.5.0b1

includes/jpgraph/src/Examples/contourex02.php

@@ -0,0 +1,42 @@
+<?php // content="text/plain; charset=utf-8"
+// Contour plot example 02
+
+require_once ('jpgraph/jpgraph.php');
+require_once ('jpgraph/jpgraph_contour.php');
+
+$data = array(
+    array (12,12,10,10,8,4),
+    array (10,10,8,14,10,3),
+    array (7,7,13,17,12,8),
+    array (4,5,8,12,7,6),
+    array (10,8,7,8,10,4));
+
+// Setup a basic graph context with some generous margins to be able
+// to fit the legend
+$graph = new Graph(500,380);
+$graph->SetMargin(40,140,60,40);
+
+$graph->title->Set("Example of contour plot");
+$graph->title->SetFont(FF_ARIAL,FS_BOLD,14);
+
+// For contour plots it is custom to use a box style ofr the axis
+$graph->legend->SetPos(0.05,0.5,'right','center');
+$graph->SetScale('intint');
+$graph->SetAxisStyle(AXSTYLE_BOXOUT);
+$graph->xgrid->Show();
+$graph->ygrid->Show();
+
+
+// A simple contour plot with 12 isobar lines and flipped Y-coordinates
+$cp = new ContourPlot($data,12,true);
+
+// Display the legend
+$cp->ShowLegend();
+
+// Make the isobar lines slightly thicker
+$graph->Add($cp);
+
+// ... and send the graph back to the browser
+$graph->Stroke();
+
+?>