Viewing file:  pushpinex1.php (1.66 KB) -rw-r--r--
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<?php
include ("../jpgraph.php");
include ("../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();
?>
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