59 lines
1.5 KiB
PHP
59 lines
1.5 KiB
PHP
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<?php // content="text/plain; charset=utf-8"
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require_once ('jpgraph/jpgraph.php');
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require_once ('jpgraph/jpgraph_line.php');
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require_once ('jpgraph/jpgraph_utils.inc.php');
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$f = new FuncGenerator('cos($x)*$x');
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list($xdata,$ydata) = $f->E(-1.2*M_PI,1.2*M_PI);
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$f = new FuncGenerator('$x*$x');
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list($x2data,$y2data) = $f->E(-2,2);
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// Setup the basic graph
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$graph = new Graph(450,350);
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$graph->SetScale("linlin");
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$graph->SetShadow();
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$graph->img->SetMargin(50,50,60,40);
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$graph->SetBox(true,'black',2);
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$graph->SetMarginColor('white');
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$graph->SetColor('lightyellow');
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// ... and titles
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$graph->title->Set('Example of Function plot');
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$graph->title->SetFont(FF_FONT1,FS_BOLD);
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$graph->subtitle->Set("(With some more advanced axis formatting\nHiding first and last label)");
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$graph->subtitle->SetFont(FF_FONT1,FS_NORMAL);
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$graph->xgrid->Show();
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$graph->yaxis->SetPos(0);
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$graph->yaxis->SetWeight(2);
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$graph->yaxis->HideZeroLabel();
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$graph->yaxis->SetFont(FF_FONT1,FS_BOLD);
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$graph->yaxis->SetColor('black','darkblue');
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$graph->yaxis->HideTicks(true,false);
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$graph->yaxis->HideFirstLastLabel();
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$graph->xaxis->SetWeight(2);
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$graph->xaxis->HideZeroLabel();
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$graph->xaxis->HideFirstLastLabel();
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$graph->xaxis->SetFont(FF_FONT1,FS_BOLD);
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$graph->xaxis->SetColor('black','darkblue');
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$lp1 = new LinePlot($ydata,$xdata);
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$lp1->SetColor('blue');
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$lp1->SetWeight(2);
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$lp2 = new LinePlot($y2data,$x2data);
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list($xm,$ym)=$lp2->Max();
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$lp2->SetColor('red');
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$lp2->SetWeight(2);
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$graph->Add($lp1);
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$graph->Add($lp2);
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$graph->Stroke();
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?>
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