Add a grid to a 3D plot
This function adds a reference grid to an RGL plot.
grid3d(side, at = NULL, col = "gray", lwd = 1, lty = 1, n = 5)
side |
Where to put the grid; see the Details section. |
at |
How to draw the grid; see the Details section. |
col |
The color of the grid lines. |
lwd |
The line width of the grid lines. (Currently only
|
lty |
The line type of the grid lines. |
n |
Suggested number of grid lines; see the Details section. |
This function is similar to grid in classic graphics,
except that it draws a 3D grid in the plot.
The grid is drawn in a plane perpendicular to the coordinate axes. The
first letter of the side argument specifies the direction of
the plane: "x", "y" or "z" (or uppercase
versions) to specify the coordinate which is constant on the plane.
If at = NULL (the default), the grid is drawn at the limit of
the box around the data. If the second letter of the side argument
is "-" or is not present, it is the lower limit; if "+"
then at the upper limit. The grid lines are drawn at values
chosen by pretty with n suggested locations.
The default locations should match those chosen by axis3d
with nticks = n.
If at is a numeric vector, the grid lines are drawn at those values.
If at is a list, then the "x" component is used to
specify the x location, the "y" component specifies the y location, and
the "z" component specifies the z location. Missing components
are handled using the default as for at = NULL.
Multiple grids may be drawn by specifying multiple values for side
or for the component of at that specifies the grid location.
A vector or matrix of object ids is returned invisibly.
If the scene is resized, the grid will not be resized; use abclines3d
to draw grid lines that will automatically resize.
Ben Bolker and Duncan Murdoch
x <- 1:10
y <- 1:10
z <- matrix(outer(x - 5, y - 5) + rnorm(100), 10, 10)
open3d()
persp3d(x, y, z, col = "red", alpha = 0.7, aspect = c(1, 1, 0.5))
grid3d(c("x", "y+", "z"))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.