Inizializzazione

jpgraph-3.5.0b1/src/Examples/pushpinex1.php

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+<?php // content="text/plain; charset=utf-8"
+require_once ('jpgraph/jpgraph.php');
+require_once ('jpgraph/jpgraph_scatter.php');
+
+DEFINE('WORLDMAP','worldmap1.jpg');
+
+function markCallback($y,$x) {
+    // Return array width
+    // width,color,fill color, marker filename, imgscale
+    // any value can be false, in that case the default value will
+    // be used.
+    // We only make one pushpin another color
+    if( $x == 54 ) 
+	return array(false,false,false,'red',0.8);
+    else
+	return array(false,false,false,'green',0.8);
+}
+
+// Data arrays
+$datax = array(10,20,30,40,54,60,70,80);
+$datay = array(12,23,65,18,84,28,86,44);
+
+// Setup the graph
+$graph = new Graph(400,270);
+
+// We add a small 1pixel left,right,bottom margin so the plot area
+// doesn't cover the frame around the graph.
+$graph->img->SetMargin(1,1,1,1);
+$graph->SetScale('linlin',0,100,0,100);
+
+// We don't want any axis to be shown
+$graph->xaxis->Hide();
+$graph->yaxis->Hide();
+
+// Use a worldmap as the background and let it fill the plot area
+$graph->SetBackgroundImage(WORLDMAP,BGIMG_FILLPLOT);
+
+// Setup a nice title with a striped bevel background
+$graph->title->Set("Pushpin graph");
+$graph->title->SetFont(FF_ARIAL,FS_BOLD,16);
+$graph->title->SetColor('white');
+$graph->SetTitleBackground('darkgreen',TITLEBKG_STYLE1,TITLEBKG_FRAME_BEVEL);
+$graph->SetTitleBackgroundFillStyle(TITLEBKG_FILLSTYLE_HSTRIPED,'blue','darkgreen');
+
+// Finally create the scatterplot
+$sp = new ScatterPlot($datay,$datax);
+
+// We want the markers to be an image
+$sp->mark->SetType(MARK_IMG_PUSHPIN,'blue',0.6);
+
+// Install the Y-X callback for the markers
+$sp->mark->SetCallbackYX('markCallback');
+
+// ...  and add it to the graph
+$graph->Add($sp);    
+
+// .. and output to browser
+$graph->Stroke();
+
+?>
+
+