R：在黑背景的白色剧情元素

Question

在R中是否有一种简单的方法可以使绘图的所有元素（轴，轴标签，网格线，刻度线......）变成白色并带有黑色背景？我已经看到了制作黑色背景的一些选项，但我不知道如何重新着色情节元素。

我希望在相对复杂的情节中这样做。我的绘图与使用虹膜数据集的scatter3D示例here under "Change color by groups"非常相似。我已经包含了必要的代码来复制下面的情节。

library(plot3D)

# Set up data
data(iris)
x <- sep.l <- iris$Sepal.Length
y <- pet.l <- iris$Petal.Length
z <- sep.w <- iris$Sepal.Width

# Make 3d scatterplot with colors by category
scatter3D(x, y, z, bty = "g", pch = 18, 
      col.var = as.integer(iris$Species), 
      col = c("#1B9E77", "#D95F02", "#7570B3"),
      pch = 18, ticktype = "detailed",
      colkey = list(at = c(2, 3, 4), side = 1, 
      addlines = TRUE, length = 0.5, width = 0.5,
      labels = c("setosa", "versicolor", "virginica")) )

Answer 1

par(bg = 'black', fg = 'white') # set background to black, foreground white
scatter3D(
    x,
    y,
    z,
    bty = "u", ## 'u' seemed to look better than 'g'
    pch = 18,
    col.var = as.integer(iris$Species),
    col = c("#1B9E77", "#D95F02", "#7570B3"),
    pch = 18,
    ticktype = "detailed",
    colkey = list(
        at = c(2, 3, 4),
        side = 1,
        addlines = TRUE,
        length = 0.5,
        width = 0.5,
        labels = c("setosa", "versicolor", "virginica"),
        col.axis = "white",
        col.clab = "white"
    ),
    col.axis = "white",
    col.panel = "black",
    col.grid = "white"
)

我刚刚浏览了?scatter3D中的参数列表，并将大多数颜色设置为白色 - 您可能可以去掉其中一些设置（或找到您想要添加的更多设置）。例如，我没有检查主要调用和col.axis = 'white'列表中是否需要colkey。还可以设置更多颜色（如col.ticks）。我建议在帮助页面搜索“col”。