Use a PNG image as background for lattice plotting with rasterVis
Scott, Here is an Incomplete answer but perhaps useful anyway. You can do:
library(dismo)
g <- gmap("Pacific Northwest National Laboratory, Richland, WA, USA")
plot(g)
# and now you can add points, polygons, lines.
# you can also do
library(rasterVis)
levelplot(g)
This "works" but not as desired; I do not know how to get the colors
come out right; probably something that should be fixed in rasterVis
if this can be done with levelplot.
Robert
On Fri, Oct 18, 2013 at 2:56 PM, Waichler, Scott R
<Scott.Waichler at pnnl.gov> wrote:
Hi, I've learned the basics of using RgoogleMaps and rasterVis, and now I want to combine their capabilities to use levelplot() with a georeferenced PNG image as a background in the lattice panel. And, I want to plot to the normal R graphics devices, not the web as package plotGoogleMaps does. Can anyone provide an example of how to use the result of RgoogleMaps' GetMap.bbox() as a background image in a plot produced with the rasterVis version of lattice graphics? Thanks, Scott Waichler Pacific Northwest National Laboratory Richland, WA USA scott.waichler at pnnl.gov
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