Re: [R] Draw maps on arbitrary Projections

2015-06-24 Thread Michael Sumner
The easiest way is to find out what the actual projection is, and reconstruct a sensible representation of the grid. Usually you have to guess, but it's possible to figure out. You *can* plot by building a proper mesh in longlat, but my preference is full rescue. You need to know the projection an

[R] Draw maps on arbitrary Projections

2015-06-24 Thread Florian Losch
I have spatial data from the WRF-model. I don't know what kind of projection was used to produce these data (neither longitude nor latitude are constant at any borders), but I have 2D matrixes for each longitude and latitude. The area covered is North America. How can I add a map using these 2D mat