Hi

Kexin Ji wrote:
Hi,
I want to produce two parallel rotated strips with color gradient. So far, the sample strip is something produced by this:

pushViewport(viewport(x = unit(0.638, "npc"), y =unit(0.386, "npc"), width=.62, height=0.006, angle=137.2))
grid.rect(y=100:1/100, just="top",
          gp=gpar(col=NA,
                  fill=colorRampPalette(c("lightgray", "white"),
                                        space="Lab")(200)))

I want a same one parallel to it to the right.


This should at least run for you ...

# Come back out of original viewport
popViewport()
# Push new viewport alongside
pushViewport(viewport(x = unit(0.648, "npc"), y=unit(0.386, "npc"),
                      width=unit(.62 , "npc"), height=unit(0.006, "npc"),
                      angle=137.2))

grid.rect(y=100:1/100, just="top",
          gp=gpar(col=NA,
                  fill=colorRampPalette(c("lightgray", "white"),
                                        space="Lab")(200)))

popViewport()

... but that still might not look like what you want; you might want to use just one viewport and draw each set of rectangles in half the height of the viewport.

Paul


I've tried something like:

pushViewport(viewport(x = unit(c(0.638, 0.648), "npc"), y =unit(c(0.386, 0.386), "npc"), width=unit(c(.62, .62) , "npc"), height=unit(c(0.006, 0.006), "npc"), angle=137.2, layout =grid.layout(1,2)))

grid.rect(y=100:1/100, just="top",
          gp=gpar(col=NA,
                  fill=colorRampPalette(c("lightgray", "white"),
                                        space="Lab")(200)))

grid.rect(y=100:1/100, just="top",
          gp=gpar(col=NA,
                  fill=colorRampPalette(c("lightgray", "white"),
                                        space="Lab")(200)))

Or

vpList(pushViewport(viewport(x = 0.638, y = 0.386, width=.62, height=0.006, angle=137.2)))

grid.rect(y=100:1/100, just="top",
          gp=gpar(col=NA,
                  fill=colorRampPalette(c("lightgray", "white"),
                                        space="Lab")(200)))

But kept getting error messages.

Would someone please give me some hint?

Thank you very much!!
Kexin


        [[alternative HTML version deleted]]

______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

--
Dr Paul Murrell
Department of Statistics
The University of Auckland
Private Bag 92019
Auckland
New Zealand
64 9 3737599 x85392
p...@stat.auckland.ac.nz
http://www.stat.auckland.ac.nz/~paul/

______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Reply via email to