R help - Aug 2009 - joining two points in rgl

Hi!!

I need to draw a cylinder/tube joining two points. I am trying to make something
presentable, I have been able to do it using lines3d. But is it possible to
increase the thickness of the lines? The size parameter does not work. Does any
one have any suggestions?

Thanks ../Murli

library(rgl)
pts<-structure(list(x = c(-0.975688, -0.975688), y = c(9.258795, -9.258795
), z = c(-1.8, 1.8)), .Names = c("x", "y", "z"),
class = "data.frame", row.names = c(NA,
-2L))

plot3d(pts$x,pts$y,pts$z, col="grey", size=2, box=FALSE, axes=FALSE,
type="s")
lines3d(pts$x,pts$y,pts$z, col="grey", size=2)

Nair, Murlidharan T wrote:
> Hi!!
>
> I need to draw a cylinder/tube joining two points. I am trying to make
something presentable, I have been able to do it using lines3d. But is it
possible to
> increase the thickness of the lines? The size parameter does not work. Does
any one have any suggestions?
>   
There's a new function cylinder3d  (in rgl 0.85) that probably does 
exactly what you want, but lwd is the parameter that controls line width.

Duncan Murdoch
> Thanks ../Murli
>
> library(rgl)
> pts<-structure(list(x = c(-0.975688, -0.975688), y = c(9.258795,
-9.258795
> ), z = c(-1.8, 1.8)), .Names = c("x", "y",
"z"), class = "data.frame", row.names = c(NA,
> -2L))
>
> plot3d(pts$x,pts$y,pts$z, col="grey", size=2, box=FALSE,
axes=FALSE, type="s")
> lines3d(pts$x,pts$y,pts$z, col="grey", size=2)
>
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