Comments on: Azimuthal Projection: Orthographic, Stereographic and Gnomonic https://gisgeography.com/azimuthal-projection-orthographic-stereographic-gnomonic/ Geographic Information Systems Mon, 31 Mar 2025 23:19:38 +0000 hourly 1 https://wordpress.org/?v=6.8.3 By: Sunday Olajide https://gisgeography.com/azimuthal-projection-orthographic-stereographic-gnomonic/#comment-334042 Tue, 04 Jun 2024 22:30:26 +0000 http://gisgeography.com/?p=13318#comment-334042 I need a step by step description with diagrams on how the spherical earth will be projected on a plane surface or map with a source rays of light, using Orthographic, Stereographic and Gnomonic projections.

]]> By: Peter https://gisgeography.com/azimuthal-projection-orthographic-stereographic-gnomonic/#comment-232541 Wed, 21 Jul 2021 12:27:44 +0000 http://gisgeography.com/?p=13318#comment-232541 Good explanations. Thank you.

]]> By: Martin Breuss https://gisgeography.com/azimuthal-projection-orthographic-stereographic-gnomonic/#comment-1818 Sat, 11 Feb 2017 20:31:55 +0000 http://gisgeography.com/?p=13318#comment-1818 Hello! I was always wondering why both sets (orthographic, stereographic, gnomic) and (azimuthal, conical, cylindrical) are called PROJECTIONS.

They represent different things, and IMO the first makes more sense to be called a projection, since it’s about projecting the imagined light rays in a specific way.

Idk, is the second set actually called something like “projection planes”?
Your article is very well explained, but it also names both sets “projections”.

I’m really confused about that, and would be thankful if you could enlighten me regarding the proper semantics!

Thanks!

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