[42] | 1 | <?php // content="text/plain; charset=utf-8" |
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| 2 | require_once ('jpgraph/jpgraph.php'); |
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| 3 | require_once ('jpgraph/jpgraph_scatter.php'); |
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| 4 | |
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| 5 | $numpoints=50; |
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| 6 | $k=0.05; |
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| 7 | |
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| 8 | // Create some data points |
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| 9 | for($i=0; $i<$numpoints; ++$i) { |
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| 10 | $datay[$i]=exp(-$k*$i)*cos(2*M_PI/10*$i); |
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| 11 | } |
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| 12 | |
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| 13 | // A format callbakc function |
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| 14 | function mycallback($l) { |
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| 15 | return sprintf("%02.2f",$l); |
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| 16 | } |
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| 17 | |
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| 18 | // Setup the basic parameters for the graph |
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| 19 | $graph = new Graph(400,200); |
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| 20 | $graph->SetScale("intlin"); |
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| 21 | $graph->SetShadow(); |
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| 22 | $graph->SetBox(); |
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| 23 | |
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| 24 | $graph->title->Set("Impuls Example 3"); |
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| 25 | $graph->title->SetFont(FF_FONT1,FS_BOLD); |
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| 26 | |
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| 27 | // Set format callback for labels |
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| 28 | $graph->yaxis->SetLabelFormatCallback("mycallback"); |
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| 29 | |
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| 30 | // Set X-axis at the minimum value of Y-axis (default will be at 0) |
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| 31 | $graph->xaxis->SetPos("min"); // "min" will position the x-axis at the minimum value of the Y-axis |
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| 32 | |
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| 33 | // Extend the margin for the labels on the Y-axis and reverse the direction |
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| 34 | // of the ticks on the Y-axis |
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| 35 | $graph->yaxis->SetLabelMargin(12); |
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| 36 | $graph->xaxis->SetLabelMargin(6); |
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| 37 | $graph->yaxis->SetTickSide(SIDE_LEFT); |
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| 38 | $graph->xaxis->SetTickSide(SIDE_DOWN); |
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| 39 | |
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| 40 | // Create a new impuls type scatter plot |
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| 41 | $sp1 = new ScatterPlot($datay); |
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| 42 | $sp1->mark->SetType(MARK_SQUARE); |
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| 43 | $sp1->mark->SetFillColor("red"); |
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| 44 | $sp1->SetImpuls(); |
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| 45 | $sp1->SetColor("blue"); |
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| 46 | $sp1->SetWeight(1); |
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| 47 | $sp1->mark->SetWidth(3); |
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| 48 | |
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| 49 | $graph->Add($sp1); |
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| 50 | |
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| 51 | $graph->Stroke(); |
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| 52 | |
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| 53 | ?> |
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