[Proj] Winkel Tripel inverse coord transformation
Oscar van Vlijmen
ovv at hetnet.nl
Fri May 18 14:50:02 EDT 2007
> From: Sergey
> Date: Wed, 16 May 2007 09:08:01 +0000 (UTC)
> Subject: [Proj] Winkel Tripel inverse coord transformation
> I have jpeg image with Winkel Tripel projection map.
> I need to detect longitude and latitude for each pixel of projection.
> Please advice me what library can i use (proj4 or libproj4)?
libproj nor proj have an inverse Winkel Tripel projection.
Can only be done iteratively, as is shown in a couple of articles, one of
"A general algorithm for the inverse transformation of map projections using
Cengizhan Ipbüker, I. Öztug Bildirici
Istanbul Tech. University Faculty of Civil Eng., Div. of Cartography &
Selcuk University, Faculty of Eng., Dept. of Geodesy & Photogrammetry; Sep.
The article gives an algorithm for the inverse of Aitoff-Hammer, Winkel
Tripel and Mollweide.
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