On Dec 23, 2016, at 7:36 AM, chris english <englishchristophera at gmail.com> wrote:
Ben,
Not so much hard wired (colorkey) but coming in a couple of times so which to use? As kind of explained here:
http://stackoverflow.com/questions/34320868/map-with-panel-plots <http://stackoverflow.com/questions/34320868/map-with-panel-plots>,
and further, more directly on rasterVis from Augustin Lobo:
http://rpubs.com/alobo/rasterVis_Intro1 <http://rpubs.com/alobo/rasterVis_Intro1>
which looks like it will get you to the results you want, though I haven't worked it through your example.
HTH,
Chris
On Wed, Dec 21, 2016 at 11:14 AM, Ben Tupper <btupper at bigelow.org <mailto:btupper at bigelow.org>> wrote:
Hello,
We have wind data that we would like to draw with rasterVis::streamplot(). We would like to include a colorkey to associate with the region but it seems that deep down rasterVis::streamplot has hardwired `colorkey = FALSE` I'm not sure how to circumvent this to allow for a color key. So, in brief...
How do I draw a streamplot with a colorkey?
Below is my example and sessionInfo() output.
Thanks so much,
Ben
### begin example
library(raster)
library(rasterVis)
library(RColorBrewer)
V = volcano/10
V = V - mean(V)
U = V[nrow(V):1,]
V = raster::raster(V)
U = raster::raster(U)
S = raster::stack(U,V)
rasterVis::streamplot(S,
isField = 'dXY',
par.settings = rasterVis::streamTheme(
region = rev(RColorBrewer::brewer.pal(n=4, name= 'Greys')),
symbol = hexbin::BTC(n=9,beg=20)),
droplet = list(pc = 1),
scales = list(draw = TRUE),
colorkey = TRUE)
# Error in .local(x, data, ...) :
# formal argument "colorkey" matched by multiple actual arguments
### end example
R version 3.3.1 (2016-06-21)
Platform: x86_64-apple-darwin13.4.0 (64-bit)
Running under: OS X 10.11.6 (El Capitan)
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] rasterVis_0.40 latticeExtra_0.6-28 RColorBrewer_1.1-2 lattice_0.20-33 raster_2.5-8 sp_1.2-3
loaded via a namespace (and not attached):
[1] zoo_1.7-13 parallel_3.3.1 hexbin_1.27.1 Rcpp_0.12.6 grid_3.3.1 viridisLite_0.1.3
Ben Tupper
Bigelow Laboratory for Ocean Sciences
60 Bigelow Drive, P.O. Box 380
East Boothbay, Maine 04544
http://www.bigelow.org <http://www.bigelow.org/>