Thanks Charles. That's very useful .___ ._ ..._ .. . ._. .___ .. __ . _. . __.. ... .... ._ .__ Entre dos pensamientos racionales hay infinitos pensamientos irracionales.
On Fri, 13 Jan 2023 at 16:13, Charles Karney <[email protected]> wrote: > These are two interchangeable ways of shifting the northing component of > the projected coordinate. Mathematically they both do exactly the same > thing and there's nothing the matter with specifying both a latitude of > origin and false northing. Indeed the Ordnance Survey grid system for > Britain specifies > > central longitude = -2 deg > latitude of origin = 49 deg > false northing = - -100 km > > This means that a shift is added to the northing component to ensure > that the northing at latitude/longitude = (49 deg, -2 deg) is -100 km. > > > On 1/13/23 09:28, Javier Jimenez Shaw wrote: > > Hi > > > > I have a question about Transverse Mercator. > > What is the impact of the parameter "Latitude of natural origin", > > compared with the "False Northing"? (apart from the fact that one is in > > degrees and the other in meters) > > Is there any difference on using a Latitude of natural origin of, let's > > say, 40 degrees, or compute the equivalent False Northing? > > > > Thanks. > > Javier > > .___ ._ ..._ .. . ._. .___ .. __ . _. . __.. ... .... ._ .__ > > Entre dos pensamientos racionales > > hay infinitos pensamientos irracionales. > > > > > > _______________________________________________ > > PROJ mailing list > > [email protected] > > https://lists.osgeo.org/mailman/listinfo/proj >
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