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from ellipsoidal to utm and back #1

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xanthospap opened this issue May 4, 2017 · 1 comment
Closed

from ellipsoidal to utm and back #1

xanthospap opened this issue May 4, 2017 · 1 comment

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@xanthospap
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Transforming ellipsoidal to UTM coordinates and back is erroneous; see the test case in pystrain/geodesy/utm.py. Seems that there is a problem (at least) with negative longtitudes.
@demanasta
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The problem is with negative latitudes (not longitudes!)
At function utm2ell, should be defined if utm coordinates (N,E) is in the northern or southern hemisphere.
On line 18, if zone < 0: , zone is always greater than zero!!

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@xanthospap @demanasta