I am plotting spatial data on transparent backgrounds for overlay on top of
a GoogleMaps interface but they aren't *exactly* right.
I have set the size of GoogleMaps and my image to 640X640 and I receive
bounds information on the current region from the GoogleMaps javascript API.
The problem is
It seems that your question has nothing to do with spplot (which is a
method in package sp), as you are using plot(). If the problem is
similar to this:
plot(1:10,xlim=c(0,11),ylim=c(0,11))
par()$usr
[1] -0.44 11.44 -0.44 11.44
then it doesn't have to do anything with plotting map data, and
Thanks for that hint which pretty much solves my problem.
I am passing a spatial object to plot which is why I had thought that
spplot was ultimately called.
It appears that plot() and its parameters are in charge of setting the plot
area no matter what kind of object is passed in.
Regards,
