plotly 3d 表面 - 将立方体更改为矩形空间 [英] plotly 3d surface - change cube to rectangular space

问题描述

我想要一个不在立方体中的 3d 图，因为我的 z 数据比 x 和 y 轴的比例小 10 倍.你如何设置它以便 3d 绘图不是在立方体中，而是在矩形中?(我希望 x、y、z 轴也处于相同的比例.也就是说，x 和 y 是从 0 到 100，而在这个例子中，z 是从 0 到 10:)

I would like to have a 3d plot that is not in a cube, since my z data is 10 times smaller than the scale of x and y axis. How do you set it up so that the 3d plot is not in a cube, but in a rectangular shape instead? (I would like x, y, z axis to be on the same scale as well. That is, x and y are from 0 to 100, while z is from 0 to 10 in this example:)

zz = matrix(c(1:10), nrow = 100, ncol = 100)

plot_ly(z=zz, x = c(1:100), y = c(1:100), type = 'surface') %>% 
  layout(autorange = F, aspectmode = 'manual', 
         scene = list(xaxis = list(range = c(0,100)),
                      yaxis = list(range = c(0,100)),
                      zaxis = list(range = c(0,20))
         ))

如果我将 zaxis 的范围设置为 (1:20)，那么比例会混乱并且表面仍然处于立方空间中，这是我不想要的.

If I set the range of zaxis to (1:20), then the scale is messed up and the surface is still in a cubic space, which I don't want to have.

推荐答案

你必须设置纵横比选项.

plot_ly(z=zz, x = c(1:100), y = c(1:100), type = 'surface') %>% 
  layout(
    autorange = F, 
    aspectmode = 'manual', 
    scene = list(
      zaxis = list(range = c(0,20)),
      aspectratio = list(x = 1, y = 1, z = 0.2)
    )
  )

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