Version 1.12

onyx2/include/jpgraph/Examples/barscalecallbackex1.php

@@ -0,0 +1,59 @@
+<?php
+// $Id: barscalecallbackex1.php,v 1.2 2002/07/11 23:27:28 aditus Exp $
+include ("../jpgraph.php");
+include ("../jpgraph_bar.php");
+
+// Callback function for Y-scale
+function yScaleCallback($aVal) {
+	return number_format($aVal);
+}
+
+// Some data
+$datay=array(120567,134013,192000,87000);
+
+// Create the graph and setup the basic parameters 
+$graph = new Graph(460,200,'auto');	
+$graph->img->SetMargin(80,30,30,40);
+$graph->SetScale("textint");
+$graph->SetShadow();
+$graph->SetFrame(false); // No border around the graph
+
+// Add some grace to the top so that the scale doesn't
+// end exactly at the max value. 
+// Since we are using integer scale the gace gets intervalled
+// to adding integer values.
+// For example grace 10 to 100 will add 1 to max, 101-200 adds 2
+// and so on...
+$graph->yaxis->scale->SetGrace(30);
+$graph->yaxis->SetLabelFormatCallback('yScaleCallback');
+
+// Setup X-axis labels
+$a = $gDateLocale->GetShortMonth();
+$graph->xaxis->SetTickLabels($a);
+$graph->xaxis->SetFont(FF_FONT2);
+
+// Setup graph title ands fonts
+$graph->title->Set("Example of Y-scale callback formatting");
+$graph->title->SetFont(FF_FONT2,FS_BOLD);
+$graph->xaxis->title->Set("Year 2002");
+$graph->xaxis->title->SetFont(FF_FONT2,FS_BOLD);
+                              
+// Create a bar pot
+$bplot = new BarPlot($datay);
+$bplot->SetFillColor("orange");
+$bplot->SetWidth(0.5);
+$bplot->SetShadow();
+
+// Setup the values that are displayed on top of each bar
+$bplot->value->Show();
+// Must use TTF fonts if we want text at an arbitrary angle
+$bplot->value->SetFont(FF_ARIAL,FS_BOLD);
+$bplot->value->SetAngle(45);
+$bplot->value->SetFormat('$ %0.0f');
+// Black color for positive values and darkred for negative values
+$bplot->value->SetColor("black","darkred");
+$graph->Add($bplot);
+
+// Finally stroke the graph
+$graph->Stroke();
+?>