Allow proj strings for area definition intialization

[mitkin]

Currently AreaDefinition accepts only proj4 dicts. Would be useful to pass proj4 strings, since Proj can parse both.

[djhoese]

This isn't really a solution to this issue at all, but @mraspaud and I have also talked about allowing different numbers of parameters too (figuring parameters out on the fly). As part of mpop 2 we had talked about a new Areas definition file format (INI or other), however since pyresample has utilities for loading from a file I guess this would affect pyresample more than mpop.

[mraspaud]

Why not. string to dict conversion can be done like this:

dict(item.strip().split("=") for item in p4string.split("+")[1:])

So then it's just a matter of testing in if the argument is a string or a dict and make the conversion if necessary

[mitkin]

Yeah, it's not dificult. Let's see if the build passes :)
@davidh-ssec i'd be keen to check how the new format could look like

[mraspaud]

Can I close this issue ?

[mitkin]

yes, please