[Proj] How to transform between NAD83 HARN/HPGN and WGS84
aaron at cartopac.com
Thu Feb 19 12:20:57 EST 2009
I checked the archives for the past year and did not find an
answer to this. Google did not provide me with any leads
I have data in NAD83 HARN for Colorado. I need to take the
data into the field as WGS84, update it/add to it, and get
it back as NAD83 HARN for Colorado. The data I am collecting
has sub-foot accuracy, so "close" is not good enough.
The information on the grid files does not address the
Is this type of transformation with the accuracy I need
possible with Proj?
Are HARN grid files available or are towgs84 settings defined
for the various HARN areas?
Or am I stuck looking for an alternative, commercial solution?
Thank for your assistance.
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