[Proj] Local Projection Selection
pmezard at gmail.com
Sun Aug 7 05:02:31 EDT 2005
I have a function performing distance calculations between points
defined in WGS-84 and perhaps some angular computations too. The input
dataset is always restricted to an area of at most 20km around a center
point, and usually 10km. The area center is unspecified, but extreme
cases (earth poles) are excluded.
For every function call, I would like to reproject the input dataset
into a euclidian space where I could perform metric computations.
Accuracy is important but not critical (I could cope with offsets of
2/3m), computation speed is important too since the function is
implemented on mobile devices where floating-point computations are
Could you give me advices to select a projection in PROJ.4 I could
configure with a center point (x,y), matching the constraints above.
Thank you for any hint.
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