Line Types

%useLatestDescriptors
%use lets-plot

import org.jetbrains.letsPlot.intern.Plot
import org.jetbrains.letsPlot.intern.Feature

fun docsDarkTheme(): Feature {
    val bgColor = "#19191c"
    return theme(
        plotBackground = elementRect(fill = bgColor),
        geom = elementGeom(pen = "white", paper = bgColor)
    ) + flavorHighContrastDark()
}

Predefined Patterns

fun getPredefinedLinetypePlot(): Plot {
    val linetypeNames = listOf("blank", "solid", "dashed", "dotted", "dotdash", "longdash", "twodash")
    val linetypeIds = (0 until linetypeNames.size).toList()
    return letsPlot() +
        geomSpoke(x = 0, angle = 0, radius = 1, size = 4, color = "#fa9fb5", alpha = 0.25) { y = linetypeIds } +
        geomSpoke(x = 0, angle = 0, radius = 1, size = 2, showLegend = false) { y = linetypeIds; linetype = linetypeIds } +
        geomLabel(x = 0, hjust = 0, size = 12, labelSize = 0, labelFormat = "{d}:", position = positionNudge(y = 0.3), family = "mono")
            { y = linetypeIds; label = linetypeIds } +
        geomLabel(x = 0.04, hjust = 0, size = 12, labelSize = 0, labelFormat = "'{}'", position = positionNudge(y = 0.3), family = "mono")
            { y = linetypeIds; label = linetypeNames } +
        scaleYReverse() +
        scaleLinetypeIdentity() +
        coordCartesian(xlim = Pair(0, 1), ylim = Pair(-0.5, linetypeNames.size - 0.75)) +
        ggsize(800, 600) +
        themeVoid()
}

val plPlot = getPredefinedLinetypePlot()
ggsave(plPlot, "aesthetics_linetype.png")
plPlot

val plPlotDark = getPredefinedLinetypePlot() + docsDarkTheme()
ggsave(plPlotDark, "aesthetics_linetype_dark.png")
plPlotDark

Custom Patterns

fun getCustomLinetypePlot(): Plot {
    val linetypePatterns = listOf(
        listOf(10, 6),
        listOf(8, listOf(10, 6)),
        "A636",
    )
    val linetypePatternNames = linetypePatterns.map { it.toString() }
    val linetypeIds = (0 until linetypePatterns.size).toList()
    return letsPlot() +
        geomSpoke(x = 0, angle = 0, radius = 1, size = 4, color = "#fa9fb5", alpha = 0.25)
            { y = linetypeIds } +
        geomSpoke(x = 0, angle = 0, radius = 1, size = 2, showLegend = false)
            { y = linetypeIds; linetype = linetypePatterns } +
        geomLabel(x = 0, hjust = 0, size = 12, labelSize = 0, labelFormat = "{}", position = positionNudge(y = 0.3), family = "mono")
            { y = linetypeIds; label = linetypePatternNames } +
        scaleYReverse() +
        scaleLinetypeIdentity() +
        coordCartesian(xlim = Pair(0, 1), ylim = Pair(-0.5, linetypePatterns.size - 0.75)) +
        ggsize(800, 300) +
        themeVoid()
}

val clPlot = getCustomLinetypePlot()
ggsave(clPlot, "aesthetics_custom_linetype.png")
clPlot

val clPlotDark = getCustomLinetypePlot() + docsDarkTheme()
ggsave(clPlotDark, "aesthetics_custom_linetype_dark.png")
clPlotDark