SFreeChart is a Scala-friendly wrapper for JFreeChart. This project is released under the same license as JFreeChart to make the projects fully license-compatible.
libraryDependencies += "com.github.wookietreiber.sfreechart" %% "sfreechart" % "latest.integration"
<dependency>
<groupId>com.github.wookietreiber.sfreechart</groupId>
<artifactId>sfreechart_${scala.version}</artifactId>
<version>latest.integration</version>
</dependency>
You can import nearly all of SFreeChart functionality (except the views, see below) with the following line:
import org.sfree.chart.Charting._
You can use the conversions to convert from ordinary Scala collections to the datasets used by JFreeChart:
val dataset = Seq((1,2),(2,4),(3,6),(4,8)).toXYSeriesCollection("some points")
These datasets can be used by the chart factory methods, which differ from the JFreeChart ones in the aspect, that they make heavy use of default arguments, so you have to type as less as possible:
val chart = XYLineChart(dataset, title = "My Chart of Some Points")
There are also some enrichments for the charts themselves to display them in a window or save them to disk:
chart.show
chart.saveAsPNG(new java.io.File("/tmp/chart.png"), (1024,768))
chart.saveAsJPEG(new java.io.File("/tmp/chart.jpg"), (1024,768))
chart.saveAsPDF(new java.io.File("/tmp/chart.pdf"), (1024,768))
There are also implicit conversions / views available, but they are disabled by default, because of ambiguity issues with implicit conversions. There are different imports available for different kinds of views, e.g.:
import org.sfree.chart.views.XYDatasetViews._
val data = Seq((1,2),(2,4),(3,6),(4,8))
val chart = XYLineChart(data, title = "My Chart of Some Points")
Import these with care, it's most likely better to use the explicit conversions as shown above.
