1 | <?php // content="text/plain; charset=utf-8" |
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2 | // Contour plot example |
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3 | |
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4 | require_once ('jpgraph/jpgraph.php'); |
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5 | require_once ('jpgraph/jpgraph_contour.php'); |
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6 | |
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7 | $data = array( |
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8 | array (0.5,1.1,1.5,1,2.0,3,3,2,1,0.1), |
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9 | array (1.0,1.5,3.0,5,6.0,2,1,1.2,1,4), |
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10 | array (0.9,2.0,2.1,3,6.0,7,3,2,1,1.4), |
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11 | array (1.0,1.5,3.0,4,6.0,5,2,1.5,1,2), |
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12 | array (0.8,2.0,3.0,3,4.0,4,3,2.4,2,3), |
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13 | array (0.6,1.1,1.5,1,4.0,3.5,3,2,3,4), |
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14 | array (1.0,1.5,3.0,5,6.0,2,1,1.2,2.7,4), |
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15 | array (0.8,2.0,3.0,3,5.5,6,3,2,1,1.4), |
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16 | array (1.0,1.5,3.0,4,6.0,5,2,1,0.5,0.2)); |
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17 | |
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18 | |
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19 | // Setup a basic graph context with some generous margins to be able |
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20 | // to fit the legend |
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21 | $graph = new Graph(500,380); |
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22 | $graph->SetMargin(40,140,60,40); |
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23 | |
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24 | $graph->title->Set('Example of contour plot'); |
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25 | $graph->title->SetFont(FF_ARIAL,FS_BOLD,14); |
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26 | |
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27 | // For contour plots it is custom to use a box style ofr the axis |
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28 | $graph->legend->SetPos(0.05,0.5,'right','center'); |
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29 | $graph->SetScale('intint'); |
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30 | $graph->SetAxisStyle(AXSTYLE_BOXOUT); |
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31 | $graph->xgrid->Show(); |
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32 | $graph->ygrid->Show(); |
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33 | |
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34 | |
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35 | // A simple contour plot with default arguments (e.g. 10 isobar lines) |
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36 | $cp = new ContourPlot($data); |
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37 | |
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38 | // Display the legend |
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39 | $cp->ShowLegend(); |
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40 | |
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41 | // Make the isobar lines slightly thicker |
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42 | $cp->SetLineWeight(2); |
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43 | $graph->Add($cp); |
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44 | |
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45 | // ... and send the graph back to the browser |
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46 | $graph->Stroke(); |
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47 | |
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48 | ?> |
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