1# Drawing a spline chart 2 3[Reference](http://wiki.pchart.net/doc.chart.drawsplinechart.html) 4 5```php 6require '/path/to/your/vendor/autoload.php'; 7 8use CpChart\Data; 9use CpChart\Image; 10 11// Create and populate data 12$data = new Data(); 13$data->addPoints([], "Serie1"); 14 15// Create the image and set the data 16$image = new Image(700, 230, $data); 17$image->setShadow(true, ["X" => 1, "Y" => 1, "R" => 0, "G" => 0, "B" => 0, "Alpha" => 20]); 18 19// 1st spline drawn in white with control points visible 20$firstCoordinates = [[40, 80], [280, 60], [340, 166], [590, 120]]; 21$fistSplineSettings = ["R" => 255, "G" => 255, "B" => 255, "ShowControl" => true]; 22$image->drawSpline($firstCoordinates, $fistSplineSettings); 23 24// 2nd spline dashed drawn in white with control points visible 25$secondCoordinates = [[250, 50], [250, 180], [350, 180], [350, 50]]; 26$secondSplineSettings = [ 27 "R" => 255, 28 "G" => 255, 29 "B"=> 255, 30 "ShowControl" => true, 31 "Ticks" => 4 32]; 33$image->drawSpline($secondCoordinates, $secondSplineSettings); 34 35// Render the picture (choose the best way) 36$image->autoOutput("example.drawSpline.png"); 37``` 38
