[R] map - mapproj : problem of states localisation

[Ray Brownrigg]

On Wed, 14 Nov 2007, Amandine Chevalier wrote:
> Thank you very much for your help,
>
> I work about my code so as to give you the example (attached file) :
>
> In the first case (azequalarea projection), france from the "france" map
> and from the "world" map are well superimposed, whereas in the second case
> (lambert projection), it is not. However, due to projections I used to
> produce my data, it would be better to use the lambert projection...That is
> not only a problem of boundaries that do not line up...it is like the map
> of France (it would be the same with the Italy's map) was centered on the
> figure without taking into account the lat-long...Can I also trust the
> location of the world map ?
>
> Do you have any idea of the problem?
>
> Thank you veru much for your help,
>
> Regards,
>
> Amandine
>
It seems to me the problem doesn't need 200 lines of code and data to 
describe, it is merely:
library(mapproj)
map("france", proj="lambert", pa=c(30, 60))
map("world", proj="lambert", pa=c(30, 60),  lwd=1, col="red", add=TRUE)

So I've punted it to the maintainer of mapproj, who isn't me.

Ray