Hi,
This mail is intended as information on pj_get_string(), which might be usefull to others using this method, or maybe its a feature that should be fixed (or I'm misusing it 
I've had a little fight setting a pj_info structure. I have such a structure that I need to recenter quite often, so I have made a method to re-initialize the structure, for which I use pj_get_string(). However, the structure is not completely initialized if it has been used before. To make it work, one has to memset the structure to 0 before calling pj_get_string().
Regards Christian G. Tveen
PS: If anybody knows if it would be safe just to enter the projection center directly into the projection structure, I would appreciate that information. I can't right away figure out if the projection on initialisation time calculates som intermediate variables based on the projection center that would not be updated if I later changes the projection center.