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_line.php'); |
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4 | require_once ('jpgraph/jpgraph_bar.php'); |
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5 | |
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6 | $month=array( |
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7 | "Jan","Feb","Mar","Apr","Maj","Jun","Jul","Aug","Sep","Okt","Nov","Dec"); |
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8 | |
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9 | // Create datapoints where every point |
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10 | $steps=100; |
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11 | for($i=0; $i<$steps; ++$i) { |
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12 | $datay[$i]=log(pow($i,$i/10)+1)*sin($i/15)+35; |
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13 | $databarx[]=sprintf("198%d %s",floor($i/12),$month[$i%12]); |
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14 | |
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15 | // Simulate an accumulated value for every 5:th data point |
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16 | if( $i % 6 == 0 ) { |
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17 | $databary[]=abs(25*sin($i)+5); |
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18 | } |
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19 | else { |
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20 | $databary[]=0; |
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21 | } |
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22 | |
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23 | } |
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24 | |
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25 | |
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26 | // New graph with a background image and drop shadow |
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27 | $graph = new Graph(450,300); |
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28 | $graph->SetBackgroundImage("tiger_bkg.png",BGIMG_FILLFRAME); |
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29 | $graph->SetShadow(); |
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30 | |
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31 | // Use an integer X-scale |
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32 | $graph->SetScale("textlin"); |
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33 | |
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34 | // Set title and subtitle |
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35 | $graph->title->Set("Combined bar and line plot"); |
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36 | $graph->subtitle->Set("100 data points, X-Scale: 'text'"); |
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37 | |
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38 | // Use built in font |
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39 | $graph->title->SetFont(FF_FONT1,FS_BOLD); |
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40 | |
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41 | // Make the margin around the plot a little bit bigger |
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42 | // then default |
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43 | $graph->img->SetMargin(40,140,40,80); |
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44 | |
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45 | // Slightly adjust the legend from it's default position in the |
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46 | // top right corner to middle right side |
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47 | $graph->legend->Pos(0.05,0.5,"right","center"); |
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48 | |
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49 | // Display every 10:th datalabel |
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50 | $graph->xaxis->SetTextTickInterval(6); |
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51 | $graph->xaxis->SetTextLabelInterval(2); |
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52 | $graph->xaxis->SetTickLabels($databarx); |
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53 | $graph->xaxis->SetLabelAngle(90); |
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54 | |
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55 | // Create a red line plot |
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56 | $p1 = new LinePlot($datay); |
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57 | $p1->SetColor("red"); |
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58 | $p1->SetLegend("Pressure"); |
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59 | |
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60 | // Create the bar plot |
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61 | $b1 = new BarPlot($databary); |
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62 | $b1->SetLegend("Temperature"); |
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63 | $b1->SetAbsWidth(6); |
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64 | $b1->SetShadow(); |
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65 | |
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66 | // The order the plots are added determines who's ontop |
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67 | $graph->Add($p1); |
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68 | $graph->Add($b1); |
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69 | |
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70 | // Finally output the image |
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71 | $graph->Stroke(); |
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72 | |
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73 | ?> |
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74 | |
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75 | |
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