rgl: axes3d – R documentation

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axes3d

Draw boxes, axes and other text outside the data

Description

These functions draw axes, boxes and text outside the range of the data. axes3d, box3d and title3d are the higher level functions; normally the others need not be called directly by users.

Usage

axes3d(edges = "bbox", labels = TRUE, tick = TRUE, nticks = 5, 
	box = FALSE, expand = 1.03, ...)
box3d(...) 
title3d(main = NULL, sub = NULL, xlab = NULL, ylab = NULL, 
	zlab = NULL, line = NA, ...) 
axis3d(edge, at = NULL, labels = TRUE, tick = TRUE, line = 0, 
	pos = NULL, nticks = 5, ...) 
mtext3d(text, edge, line = 0, at = NULL, pos = NA, ...)

Arguments

`edges`	a code to describe which edge(s) of the box to use; see Details below
`labels`	whether to label the axes, or (for `axis3d`) the labels to use
`tick`	whether to use tick marks
`nticks`	suggested number of ticks
`box`	draw the full box if `"bbox"` axes are used
`expand`	how much to expand the box around the data
`main`	the main title for the plot
`sub`	the subtitle for the plot
`xlab, ylab, zlab`	the axis labels for the plot
`line`	the “line” of the plot margin to draw the label on
`edge, pos`	the position at which to draw the axis or text
`text`	the text to draw
`at`	the value of a coordinate at which to draw the axis
`...`	additional parameters which are passed to `bbox3d` or `material3d`

Details

The rectangular prism holding the 3D plot has 12 edges. They are identified using 3 character strings. The first character (‘x’, ‘y’, or ‘z’) selects the direction of the axis. The next two characters are each ‘-’ or ‘+’, selecting the lower or upper end of one of the other coordinates. If only one or two characters are given, the remaining characters default to ‘-’. For example edge = 'x+' draws an x-axis at the high level of y and the low level of z.

By default, axes3d uses the bbox3d function to draw the axes. The labels will move so that they do not obscure the data. Alternatively, a vector of arguments as described above may be used, in which case fixed axes are drawn using axis3d.

If pos is a numeric vector of length 3, edge determines the direction of the axis and the tick marks, and the values of the other two coordinates in pos determine the position. See the examples.

Value

These functions are called for their side effects. They return the object IDs of objects added to the scene.

Author(s)

Duncan Murdoch

Examples

open3d()
  points3d(rnorm(10), rnorm(10), rnorm(10))

  # First add standard axes
  axes3d()  

  # and one in the middle (the NA will be ignored, a number would 
  # do as well)
  axis3d('x', pos = c(NA, 0, 0))

  # add titles
  title3d('main', 'sub', 'xlab', 'ylab', 'zlab')

  rgl.bringtotop()
  
  open3d()
  points3d(rnorm(10), rnorm(10), rnorm(10))
  
  # Use fixed axes
  
  axes3d(c('x', 'y', 'z'))
         
  # Put 4 x-axes on the plot
  axes3d(c('x--', 'x-+', 'x+-', 'x++'))         
  
  axis3d('x', pos = c(NA, 0, 0))     
  title3d('main', 'sub', 'xlab', 'ylab', 'zlab')

rgl

3D Visualization Using OpenGL

v0.106.8

GPL

Authors

Duncan Murdoch [aut, cre], Daniel Adler [aut], Oleg Nenadic [ctb], Simon Urbanek [ctb], Ming Chen [ctb], Albrecht Gebhardt [ctb], Ben Bolker [ctb], Gabor Csardi [ctb], Adam Strzelecki [ctb], Alexander Senger [ctb], The R Core Team [ctb, cph], Dirk Eddelbuettel [ctb], The authors of Shiny [cph], The authors of knitr [cph], Jeroen Ooms [ctb], Yohann Demont [ctb], Joshua Ulrich [ctb], Xavier Fernandez i Marin [ctb], George Helffrich [ctb], Ivan Krylov [ctb]

Initial release