66 lines
2.2 KiB
PHP
66 lines
2.2 KiB
PHP
<?php
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require_once("../lib/phpchartdir.php");
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#
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# We use a random number generator to simulate the data from 9:30am to 4:30pm with
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# one data point every 4 minutes. The total number of points during that period is
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# 106. (7 hours x 15 points/hour + 1)
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#
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$noOfPoints = 106;
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# Assume we have not reached the end of the day yet, and only 85 points are
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# available. Create a random table object of 1 col x 85 rows, using 9 as seed.
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$rantable = new RanTable(9, 1, 85);
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# Set the 1st column to start with 1800 and with random delta from -5 to 5.
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$rantable->setCol(0, 1800, -5, 5);
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# Get the data as the 1st column of the random table
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$data = $rantable->getCol(0);
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# The x-axis labels for the chart
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$labels = array("-", "10am", "-", " ", "-", "12am", "-", " ", "-", "2pm", "-", " ",
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"-", "4pm", "-");
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#
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# Now we obtain the data into arrays, we can start to draw the chart using
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# ChartDirector
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#
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# Create a XYChart object of size 180 x 180 pixels with a blue background (0x9c9cce)
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$c = new XYChart(180, 180, 0x9c9cce);
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# Add titles to the top and bottom of the chart using 7.5pt Arial font. The text is
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# white 0xffffff on a deep blue 0x31319C background.
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$c->addTitle2(Top, "STAR TECH INDEX 2003-01-28", "arial.ttf", 7.5, 0xffffff,
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0x31319c);
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$c->addTitle2(Bottom, "LATEST STI:1809.41 (+14.51)", "arial.ttf", 7.5, 0xffffff,
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0x31319c);
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# Set the plotarea at (31, 21) and of size 145 x 124 pixels, with a pale yellow
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# (0xffffc8) background.
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$c->setPlotArea(31, 21, 145, 124, 0xffffc8);
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# Add custom text at (176, 21) (top right corner of plotarea) using 11pt Times Bold
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# Italic font/red (0xc09090) color
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$textBoxObj = $c->addText(176, 21, "Chart Demo", "timesbi.ttf", 11, 0xc09090);
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$textBoxObj->setAlignment(TopRight);
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# Use 7.5 pts Arial as the y axis label font
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$c->yAxis->setLabelStyle("", 7.5);
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# Set the labels on the x axis by spreading the labels evenly between the first point
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# (index = 0) and the last point (index = noOfPoints - 1)
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$c->xAxis->setLinearScale(0, $noOfPoints - 1, $labels);
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# Use 7.5 pts Arial as the x axis label font
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$c->xAxis->setLabelStyle("", 7.5);
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# Add a deep blue (0x000080) line layer to the chart
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$c->addLineLayer($data, 0x000080);
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# output the chart
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header("Content-type: image/png");
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print($c->makeChart2(PNG));
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?>
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