R: Superimpose contour lines on a 3D plot

contour3d {emdbook} | R Documentation

## Superimpose contour lines on a 3D plot

### Description

Plot contour lines computed from data in 3D, or add them to an existing 3D (RGL) surface

### Usage

    contour3d(x, y, z, contourArgs=NULL, ...)

### Arguments

`x` | numeric vector of x values (as in `contour`), or a list with components `x`, `y` and `z`
`y` | numeric vector of y values (as in `contour`)
`z` | numeric z matrix (as in `contour`)
`contourArgs` | list of arguments to `contourLines`
`...` | other arguments to `lines3d`

### Value

Returns a list of contour lines (as in `contourLines`), invisibly.

### Note

You have to install the `rgl` package before you can use this function.

### Note

If you are superimposing the contour lines on a surface, it helps to draw the surface with some level of transparency (`alpha` parameter: see `material3d`) so the contour lines are not obscured by the surface.

### Author(s)

Ben Bolker

[Package emdbook version 1.3.10 Index]