1 | <?php // content="text/plain; charset=utf-8" |
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2 | require_once ('../jpgraph.php'); |
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3 | require_once ('../jpgraph_line.php'); |
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4 | require_once ('../jpgraph_date.php'); |
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5 | |
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6 | //Create some test data |
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7 | $xdata = array(); |
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8 | $ydata = array(); |
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9 | |
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10 | // Timestamps - 2h (=7200s) apart starting |
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11 | $sampling = 7200; |
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12 | $n = 50; // data points |
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13 | for($i=0; $i < $n; ++$i ) { |
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14 | $xdata[$i] = time() + $i * $sampling; |
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15 | $ydata[0][$i] = rand(12,15); |
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16 | $ydata[1][$i] = rand(100,155); |
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17 | $ydata[2][$i] = rand(20,30); |
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18 | } |
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19 | |
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20 | function formatDate(&$aVal) { |
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21 | $aVal = date('Y-m-d H:i',$aVal); |
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22 | } |
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23 | |
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24 | // Apply this format to all time values in the data to prepare it to be display |
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25 | array_walk($xdata,'formatDate'); |
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26 | |
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27 | // Create the graph. |
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28 | $graph = new Graph(600, 350); |
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29 | $graph->title->Set('Accumulated values with specified X-axis scale'); |
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30 | $graph->SetScale('textlin'); |
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31 | |
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32 | // Setup margin color |
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33 | $graph->SetMarginColor('green@0.95'); |
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34 | |
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35 | // Adjust the margin to make room for the X-labels |
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36 | $graph->SetMargin(40,30,40,120); |
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37 | |
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38 | // Turn the tick marks out from the plot area |
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39 | $graph->xaxis->SetTickSide(SIDE_BOTTOM); |
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40 | $graph->yaxis->SetTickSide(SIDE_LEFT); |
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41 | |
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42 | $p0 =new LinePlot($ydata[0]); |
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43 | $p0->SetFillColor('sandybrown'); |
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44 | $p1 =new LinePlot($ydata[1]); |
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45 | $p1->SetFillColor('lightblue'); |
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46 | $p2 =new LinePlot($ydata[2]); |
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47 | $p2->SetFillColor('red'); |
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48 | $ap = new AccLinePlot(array($p0,$p1,$p2)); |
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49 | |
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50 | $graph->xaxis->SetTickLabels($xdata); |
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51 | $graph->xaxis->SetTextLabelInterval(4); |
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52 | |
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53 | // Add the plot to the graph |
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54 | $graph->Add($ap); |
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55 | |
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56 | // Set the angle for the labels to 90 degrees |
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57 | $graph->xaxis->SetLabelAngle(90); |
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58 | |
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59 | // Display the graph |
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60 | $graph->Stroke(); |
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61 | ?> |
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