Customizing Tick Marks in Colorbars¶

Two new parameters in the theme() function, legendTicks and legendTicksLength, provide fine-grained control over colorbar tick marks.

In [1]:

%useLatestDescriptors
%use dataframe
%use lets-plot

In [2]:

LetsPlot.getInfo()

Out[2]:

Lets-Plot Kotlin API v.4.10.0. Frontend: Notebook with dynamically loaded JS. Lets-Plot JS v.4.6.1.

In [3]:

val data = mapOf("time" to listOf("Lunch", "Lunch", "Dinner", "Dinner", "Dinner"))

val p = letsPlot(data) + 
        geomBar{x = "time"; fill = "..count.."} + 
        scaleFillGrey() + 
        themeVoid() + 
        ggsize(400, 200)

p

Out[3]:

In [4]:

val longTicks = theme(legendTicksLength = 10) + ggtitle("Long Ticks")
val thickTicks = theme(legendTicks = elementLine(size = 4)) + ggtitle("Thick Ticks")
val thickRedTicks = theme(legendTicks = elementLine(size = 4, color = "red")) + ggtitle("Thick Red Ticks")
val hiddenTicks = theme(legendTicks = "blank") + ggtitle("Hidden Ticks")

gggrid(
    listOf(
        p + longTicks,
        p + thickTicks,
        p + thickRedTicks,
        p + hiddenTicks
    )
) + ggsize(800, 200)

Out[4]: