Methods of 3d line plotting

This is a generic function used to plot the edge lines of either a trigrid or a hexagrid object, a facelayer, or Spatial objects in 3d space. The method is also implemented for the object classes defined by the package 'sp'.

Usage

lines3d

# S4 method for class 'trigrid'
lines3d(x, arcs = FALSE, ...)

# S4 method for class 'Line'
lines3d(x, radius = authRadius, ...)

# S4 method for class 'Lines'
lines3d(x, radius = authRadius, ...)

# S4 method for class 'SpatialLines'
lines3d(x, radius = authRadius, ...)

# S4 method for class 'SpatialLinesDataFrame'
lines3d(x, radius = authRadius, ...)

# S4 method for class 'Polygon'
lines3d(x, radius = authRadius, ...)

# S4 method for class 'Polygons'
lines3d(x, radius = authRadius, ...)

# S4 method for class 'SpatialPolygons'
lines3d(x, radius = authRadius, ...)

# S4 method for class 'SpatialPolygonsDataFrame'
lines3d(x, radius = authRadius, ...)

Format

An object of class nonstandardGenericFunction of length 1.

Arguments

x

(trigrid, hexagrid, facelayer or sp) Object to be plotted.

arcs

logical Value setting whether great circle arcs or segments shall be drawn betwenn the points of the grid.

...

Further graphical parameters passed to (see plot3d).

radius

(numeric) Used for plotting objects that inherit from Spatial*. The radius of the sphere the sp objects are plotted with. Default to the authalic (R2) radius of Earth.

Value

The function does not return any value.

Details

The function is built on the openGL renderer of the R package rgl, which needs to be installed for the function to run. Although the function is works without attaching rgl, note that if you want to attach both icosa and rgl,the rgl package has to be loaded ifrst otherwise the function will not be usable.

Examples

# create a hexagonal grid
  g <- hexagrid(c(2,2))
# plot the grid in 3d space
#  lines3d(g, col="blue")