Subject: Re: [boost] geodetic library
From: Michael Fawcett (michael.fawcett_at_[hidden])
Date: 2009-08-27 17:15:23
On Thu, Aug 27, 2009 at 3:55 PM, DE<satan66613_at_[hidden]> wrote:
> is there a need for subj?
> i implemented very accurate direct and inverse geodetic problem
> routines (as well as geocentric (X, Y, Z) to geodetic (B, L, H) conversion)
> i used bessel's method to derive the formulas
> 6 iterations for both direct and inverse routines is enough to
> converge to full double precision (16 digits)
> however the formulas themselves provide 9 significant digits
> that is 1cm accuracy regardless of range (i.e. range = 1m..20000km)
> to get acceptable accuracy, say, 2 iterations is enough (or even 1)
> however there are several other aspects uncovered (area and perimeter,
> projections, etc.)
Do you have plans to support WGS84? What about Vincenty?