Inizializzazione

jpgraph-3.5.0b1/src/Examples/interpolation-growth.php

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+<?php // content="text/plain; charset=utf-8"
+require_once ('jpgraph/jpgraph.php');
+require_once ('jpgraph/jpgraph_line.php');
+require_once ('jpgraph/jpgraph_log.php');
+
+// Matrix size rxr
+$r = 10;
+
+// Max Interpolation factor
+$f = 5;
+
+for( $i=1; $i <= $f; ++$i ) {
+	$xdata[] = $i;
+	$ydata[] =  pow( $r*pow(2,($i-1)) - ( pow(2,$i) - 1 ),2);
+}
+
+$graph = new Graph(400,240);
+$graph->SetScale('intint');
+$graph->SetMargin(50,50,20,30);
+$graph->SetFrame(false);
+$graph->SetBox(true,'black',2);
+$graph->SetMarginColor('white');
+$graph->SetColor('lightyellow@0.7');
+
+$graph->title->Set('Interpolation growth for size 10x10');
+$graph->title->SetFont(FF_FONT1,FS_BOLD);
+
+$graph->xaxis->SetTitle('Interpolation factor','center');
+$graph->xaxis->SetTitleMargin(10);
+
+$graph->SetAxisStyle(AXSTYLE_YBOXIN);
+$graph->xgrid->Show();
+
+$lp1 = new LinePlot($ydata,$xdata);
+$lp1->SetColor('darkred');
+$lp1->SetWeight(3);
+$graph->Add($lp1);
+
+$graph->Stroke();
+?>
+
+