Comments on: The State Plane Coordinate System (SPCS) https://gisgeography.com/state-plane-coordinate-system-spcs/ Geographic Information Systems Mon, 31 Mar 2025 20:20:29 +0000 hourly 1 https://wordpress.org/?v=6.8.3 By: Bruce Hall https://gisgeography.com/state-plane-coordinate-system-spcs/#comment-2106 Tue, 19 Sep 2017 20:48:19 +0000 http://gisgeography.com/?p=13410#comment-2106 Best site out of many that I visited for diagrams and descriptions of the two main projections used, and the justification for each. Using color coding for the two projections used is great, as are the diagrams for those two projections. You should have labeled the zones south and north and described that a bit, I think. Actually, I am still confused about the use of numbers for zones (saw that on one site) and the use of north-south or east-west. Very well written page, however, with awesome diagrams.

]]> By: GISGeography https://gisgeography.com/state-plane-coordinate-system-spcs/#comment-1823 Wed, 15 Feb 2017 01:55:25 +0000 http://gisgeography.com/?p=13410#comment-1823 In reply to Scott Drzyzga.

Thanks Scott. I’ve updated that figure. Please feel free to share with your students if you wish.

]]> By: Scott Drzyzga https://gisgeography.com/state-plane-coordinate-system-spcs/#comment-1820 Tue, 14 Feb 2017 15:16:18 +0000 http://gisgeography.com/?p=13410#comment-1820 The article is well written and supported by clear graphics that illustrate the proper secant case of every projection method. Well done. My only criticism is with the “Secant Cylinder” figure; the standard small circles are mislabeled as parallels, which is a term reserved for describing parallel lines of latitude. Fix that typo, and I’ll be able to share this resource with my students.

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