topxaxisex1.php
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<?php // content="text/plain; charset=utf-8"
require_once ("jpgraph/jpgraph.php");
require_once ("jpgraph/jpgraph_line.php");
 
// Some data
$datay = array(25,29,29,39,55);
 
$graph = new Graph(400,200,'auto');
$graph->img->SetMargin(40,40,40,20);
 
$graph->SetScale("linlin");
$graph->SetShadow();
$graph->title->Set("Top X-axis");
 
// Start at 0
$graph->yscale->SetAutoMin(0);
 
// Add some air around the Y-scale
$graph->yscale->SetGrace(100);
 
// Use built in font
$graph->title->SetFont(FF_FONT1,FS_BOLD);
 
// Adjust the X-axis
$graph->xaxis->SetPos("max");
$graph->xaxis->SetLabelSide(SIDE_UP);
$graph->xaxis->SetTickSide(SIDE_DOWN);
 
// Create the line plot
$p1 = new LinePlot($datay);
$p1->SetColor("blue");
 
// Specify marks for the line plots
$p1->mark->SetType(MARK_FILLEDCIRCLE);
$p1->mark->SetFillColor("red");
$p1->mark->SetWidth(4);
 
// Show values
$p1->value->Show();
 
// Add lineplot to graph
$graph->Add($p1);
 
// Output line
$graph->Stroke();
 
?>