import io.data2viz.color.* import io.data2viz.geom.* import io.data2viz.math.* import io.data2viz.viz.* import io.data2viz.shape.* import io.data2viz.color.Colors.Web fun main() { viz { size = size(600, 600) //<- you need a viz size // but change everything from here val radius: Double = 600.0 / 2.0 - 20.0 val data: Array<Pair<String, Double>> = arrayOf( "a" to 10.0, "b" to 5.0, "c" to 6.0, "d" to 8.0 ) val totalCount: Double = data.sumByDouble { it.second } val arcParams: Array<ArcParams<Pair<String, Double>>> = pie<Pair<String, Double>> { value = { (it.second / totalCount) * tau } }.render(data) val colorOf: (Pair<String, Double>) -> RgbColor = { listOf( Web.purple, Web.navy, Web.teal, Web.lime, Web.yellow, Web.red, Web.gray )[data.indexOf(it)] } val arcBuilder: ArcBuilder<Pair<String, Double>> = arcBuilder { startAngle = { data -> arcParams.find{ it.data == data }!!.startAngle } endAngle = { data -> arcParams.find { it.data == data }!!.endAngle } padAngle = { data -> arcParams.find { it.data == data }!!.padAngle ?: 0.0 } outerRadius = { radius } } group { transform { translate(300.0, 300.0) } arcParams.forEach { arcBuilder.buildArcForDatum(it.data!!, path { fill = colorOf(it.data!!) stroke = Web.black strokeWidth = 2.0 }) } } // to here }.bindRendererOnNewCanvas() }