On 11-09-07 6:07 PM, Dale Coons wrote:
Doing a visual graphic and trying to make it "pretty"
Here's simple chart to play with:
library(rgl)
dotframe<-data.frame(x=c(0,7,0,0,-7,0),y=c(0,0,7,0,0,-7),z=c(7,0,0,-7,0,0))
dotframe plot3d(dotframe$x,dotframe$y,dotframe$z, radius=3,
type='s',col=c('red','green','blue','purple','orange','gray'),
axes=FALSE, box=FALSE, xlab='',ylab='',zlab='')
text3d(x=7,y=0,z=0, text="hello, world",adj = 0.5, color="blue") #adds a
label at one of the points
My questions:
1) is there a way to label the points (spheres in this case) so that the
label 'stays on top'? other than text3d(), which adds labels, but they
are hidden when the graph is rotated?
Yes, but it's not trivial. You need to write your own mouse handler,
that erases the old labels, rotates the data, and replots the labels
afterwards. This would be quite feasible with a small number of labels,
but maybe not if you have too many: the delays for replotting would be
noticeable.
2) can a bitmap, say, of a company or university be inserted into the
title area?
I think so, by plotting a "sprite" with the bitmap as a "texture". See
?sprites3d.
3) can a bitmap be used as the marker for a point?
That also sounds like a sprite.
Duncan Murdoch
Thanks in advance for help-I learn a lot from others questions and
appreciate direction (even if it's RTFM!)
Dale
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