Custom UTM coordinates to ggmap

Question

On maps obtained from osm/cloudmade etc using get_map , how does one change the projection to a custom UTM coordinate using Proj4/CRS?

Can something like

pc0.1<- spTransform(pc0,CRS("+proj=utm +zone=32 +datum=WGS84 +units=m +no_defs+ellps=WGS84+towgs84=0,0,0"))

be used with the get_map or ggmap or ggplot in general? Is there any way other than changing all my UTM to match the LL? Thanks

Answer 1

I have done this previously when using library(OpenStreetMap) with the command openproj , but I'm not sure if this exists in the ggmap library. I generally found that OpenStreetMap gave me more additional functionality than ggmap .