| rgl.sphgrid {sphereplot} | R Documentation |
Create a spherical plotting grid
Description
Creates a spherical plotting grid, within which further points can be added. Useful for astronomical plotting in particular, where this becomes the celestial sphere.
Usage
rgl.sphgrid(radius = 1, col.long='red', col.lat='blue', deggap = 15, longtype = "H",
add = FALSE, radaxis=TRUE, radlab='Radius')
Arguments
radius |
The radial extent of the spherical grid. |
deggap |
The attempted separation between sherical grid lines in degrees. |
col.long |
The colour for longitude labels. |
col.lat |
The colour for latitude labels. |
longtype |
Specifies if longitudes should be labelled in hours (H- default) or degrees (D). |
add |
Should the grid be added to the current plot, or if FALSE a new rgl device is launched. |
radaxis |
Logical determining whether the sphere radius vector is drawn and labeled (default is TRUE). Pretty labeling is used to choose the location of ticks and labels. |
radlab |
If 'radaxis' is TRUE then the 'radlab' parameter determines the name of the label. |
Details
This function should be called first, and can generally be used with only the declaration of radius to good effect.
Value
No value, used for plotting side effect.
Author(s)
Aaron Robotham
Examples
rgl.sphgrid()