On Fri, Oct 9, 2009 at 7:51 PM, Tim Clark <mudiver1...@yahoo.com> wrote:
> Dear List,
>
> Is there a color palette avaliable similar to what is used in satellite ocean
> color imagery? I.e. a gradient with blue on one end and red on the other,
> with yellow in the middle? I have tried topo.colors(n) but that comes out
> more yellow on the end. I am looking for something similar to what is found
> on the CoastWatch web page:
>
> http://oceanwatch.pifsc.noaa.gov/imagery/GA2009281_2009282_sst_2D_eddy.jpg
>
> Thanks!
You could build one yourself with the colorRamp function:
satRampP =
colorRampPalette(c("black","blue","cyan","yellow","orange","red","black"))
that looks roughly like the one in the jpg, but I'm not sure about
the black at the far end...anyway, let's see:
image(matrix(seq(0,1,len=100),100,1),col=satRampP(100))
Or you could try my colour schemes package:
https://r-forge.r-project.org/projects/colourscheme/
Barry
______________________________________________
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.
