vrmlgen (version 1.4.9)

vrml.close: VRML output device system

Description

vrml.close terminates a VRML-environment and writes the corresponding 3D-scene to a VRML file.

Usage

vrml.close()

Value

The function is used for its side-effect (output of a VRML-file in the specified directory) and has no return value.

Details

This function closes a VRML-environment created with vrml.open() and writes the VRML-plot to the file and directory specified in the vrml.open- parameters. For more details, see the description of the vrml.open function.

References

Enrico Glaab, Jonathan M. Garibaldi, Natalio Krasnogor (2010). vrmlgen: An R Package for 3D Data Visualization on the Web. Journal of Statistical Software, 36(8), p. 1-18. URL: http://www.jstatsoft.org/v36/i08/

See Also

vrml.open

Examples

curdir <- getwd()
outdir <- tempdir()
setwd(outdir)

# This example loads the atom coordinates of a molecule
# (C60, fullerene) and visualizes the molecule in 3D
# using points for the atoms and lines for the atom bonds
# (atom pairs within a given distance threshold).

vrml.open(file = "c60.wrl", navigation = "EXAMINE",
          html.embed = "c60example.html")

# load dataset
data(c60coords)

# plot the atoms as black spheres
points3d(c60coords, col = "black")

# plot the atom bonds as gray lines
# (for all atom pairs with a Euclidean distance < 0.66)
for(j in 1:(nrow(c60coords)-1))
{
  for(k in (j+1):nrow(c60coords))
  {
  	if(sqrt(sum((c60coords[j,]-c60coords[k,])^2)) < 0.66)
  	  lines3d(c60coords[c(j,k),], col = "gray", lwd = 1)
  }
}

vrml.close()

# show the output in a web-browser 
# (VRML-plugin must be installed!)
if(file.exists(paste("file://",file.path(outdir,
                "c60example.html"), sep = "")))
{
  browseURL(paste("file://",file.path(outdir,
                  "c60example.html"), sep = ""))
}

setwd(curdir)