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51 lines
1.8 KiB
51 lines
1.8 KiB
4 years ago
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# Drawing a line chart
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[Reference](http://wiki.pchart.net/doc.chart.drawlinechart.html)
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```php
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require '/path/to/your/vendor/autoload.php';
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use CpChart\Data;
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use CpChart\Image;
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/* Build a dataset */
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$data = new Data();
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$data->addPoints([-4, VOID, VOID, 12, 8, 3], "Probe 1");
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$data->addPoints([3, 12, 15, 8, 5, -5], "Probe 2");
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$data->addPoints([2, 7, 5, 18, 19, 22], "Probe 3");
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$data->setSerieTicks("Probe 2", 4);
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$data->setSerieWeight("Probe 3", 2);
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$data->setAxisName(0, "Temperatures");
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$data->addPoints(["Jan", "Feb", "Mar", "Apr", "May", "Jun"], "Labels");
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$data->setSerieDescription("Labels", "Months");
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$data->setAbscissa("Labels");
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/* Create the 1st chart */
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$image = new Image(700, 230, $data);
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$image->setGraphArea(60, 60, 450, 190);
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$image->drawFilledRectangle(60, 60, 450, 190, [
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"R" => 255,
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"G" => 255,
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"B" => 255,
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"Surrounding" => -200,
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"Alpha" => 10
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]);
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$image->drawScale(["DrawSubTicks" => true]);
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$image->setShadow(true, ["X" => 1, "Y" => 1, "R" => 0, "G" => 0, "B" => 0, "Alpha" => 10]);
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$image->setFontProperties(["FontName" => "fonts/pf_arma_five.ttf", "FontSize" => 6]);
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$image->drawLineChart(["DisplayValues" => true, "DisplayColor" => DISPLAY_AUTO]);
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$image->setShadow(false);
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/* Create the 2nd chart */
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$image->setGraphArea(500, 60, 670, 190);
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$image->drawFilledRectangle(500, 60, 670, 190, ["R" => 255, "G" => 255, "B" => 255, "Surrounding" => -200, "Alpha" => 10]);
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$image->drawScale(["Pos" => SCALE_POS_TOPBOTTOM, "DrawSubTicks" => true]);
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$image->setShadow(true, ["X" => -1, "Y" => 1, "R" => 0, "G" => 0, "B" => 0, "Alpha" => 10]);
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$image->drawLineChart();
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$image->setShadow(false);
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/* Write the legend */
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$image->drawLegend(510, 205, ["Style" => LEGEND_NOBORDER, "Mode" => LEGEND_HORIZONTAL]);
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$image->autoOutput("example.drawLineChart.png");
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```
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