Talk:Cassini projection
Latest comment: 6 months ago by Justinkunimune in topic Soldner?
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File:Cassini projection SW.jpg to appear as POTD edit
Hello! This is a note to let the editors of this article know that File:Cassini projection SW.jpg will be appearing as picture of the day on November 17, 2014. You can view and edit the POTD blurb at Template:POTD/2014-11-17. If this article needs any attention or maintenance, it would be preferable if that could be done before its appearance on the Main Page. Thanks! — Crisco 1492 (talk) 00:42, 27 October 2014 (UTC)
The Cassini projection is a map projection first described by César-François Cassini de Thury in 1745. It is the transverse aspect of the equirectangular projection, in that the globe is first rotated so the central meridian becomes the "equator", and then the normal equirectangular projection is applied. The projection is not conformal. Due to the need for conformal projections in national mapping systems, this projection has been mostly superseded by the Transverse Mercator.Map: Strebe, using Geocart
- Edits made, including new (and striking) image. Strebe (talk) 04:21, 27 October 2014 (UTC)
- Thanks! — Crisco 1492 (talk) 00:07, 28 October 2014 (UTC)
Soldner? edit
Would it be too much to ask for an explanation for why the projection is also known as Soldner projection and who this person was?
PS I found:
- The Cassini-Soldner projection is the ellipsoidal version of the Cassini projection for the sphere.
PPS: This is the guy: Johann Georg von Soldner.
--2A02:908:898:9780:9F78:CB6E:C222:8519 (talk) 04:38, 8 November 2023 (UTC)
- Flattening the Earth described Soldner's and Cassini's respective contributions, so I added it to the lede. Justin Kunimune (talk) 00:40, 9 November 2023 (UTC)