Description Usage Arguments Details Value Note Author(s) See Also Examples

This function plots symbols similarly to
what the base graphics function `points`

does when `pch`

is specified.

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`x, y, z` |
The locations at which to plot in a form
suitable for use in |

`pch` |
A vector of integers or single characters describing the symbols to plot. |

`bg` |
The fill color(s) to use for |

`cex` |
A relative size of the symbol to plot. |

`radius` |
An absolute size of the symbol to plot in user coordinates. |

`color` |
The color(s) to use for symbols. |

`lit` |
Whether the object responds to lighting or just shows the displayed color directly. |

`...` |
Other material properties. |

The list of symbols encoded by numerical
`pch`

values is given in the `points`

help page.

A vector of object id values is returned invisibly. Separate objects will be drawn
for each different combination of `pch`

value from
0 to 25, `color`

and `bg`

, and another holding all the character
symbols.

This function is not a perfect match to how the `points`

function works due
to limitations in rgl and OpenGL. In
particular:

Symbols with numbers from 1 to 25 are drawn
as 3D sprites (see `sprites3d`

),
so they will resize as the window is zoomed.
Letters and numbers from 32 to 255 (which are
mapped to letters) are drawn using `text3d`

,
so they maintain a fixed size.

A calculation somewhat like the one in `plot3d`

that sets the size
of spheres is used to choose the size of
sprites based on `cex`

and the
current scaling. This will likely need manual
tweaking. Use the `radius`

argument
for a fixed size.

No special handling is done for the case of
`pch = "."`

. Use `points3d`

for
small dots.

As of rgl version 0.100.10, background and foreground colors can vary from symbol to symbol.

Duncan Murdoch

`points3d`

, `text3d`

,
`plot3d`

, `points`

.

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