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I need to double proportion a corner and I am surveying using state plane coordinates. Rather than using convergence to get to geodetic and LaPlace correction to get from geodetic to astronomic, what programs do this?
I currently use Civil3D and I don't think it does. What about Trimble Business Center? Carlson? Any online NGS tools other than DEFLEC##?
Is there any such program that just gives an angular difference between a specified datum's north and astronomic north given a lat-long or some other given location?
Posted : April 18, 2023 7:34 am