Using ProjMath ...

Hello,

I am trying to understand what the getscale function
does in the ProjMath class does, it would be great
if someone could share their understanding.

What I am looking to do is to determine a bounding box
for the map and set the scale for the map so as to include
all the regions that lie within the bounding box and then
set the scale and the center for the map. But the behaviour
on using ProjMathgetScale for a Mercator Projection,
although close to the edges of the bounding box, covers lesser
area in terms of upper/lower latitudes.

Is there a more efficient way of doing the same thing.

Regards,
Pradeep.

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