I'm almost embarrassed to ask, since I'm obviously missing something (probably
simple), but how do I shift the coordinate system of the cylindrical
equidistant (rectangular) global map so that it goes not from -180 to -180
degrees longitude but instead ranges 0-360 ?

There are inputs into WorldMapProjections which ask for centroid of the
projections and also the range, but manipulation of these don't change the
positions of the points in the map, just the view of what is plotted (it
seems). I've tried shifting the positions myself (mark/compute); however, with
my new map ranging 0-360 longitude, I can only see the 0-180 part (the 180-360
is ignored, apparently). Is there something somewhere which limits the view of
this plotted object ? I looked in the wdbi.dx file to see if I could find
anything, but I didn't really see much in there, except binary data.

I can get a map to plot which "looks" like how I want it, but of course the
positions are incorrect, since they are forced to range -180 - 180. My data
won't overplot on this, unless I juggle that all around too.

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