NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Mercator projection in the news
From: Andrés Ruiz
Date: 2025 Aug 28, 19:33 +0200
From: Andrés Ruiz
Date: 2025 Aug 28, 19:33 +0200
About projections in XXI century.
ECDIS systems use dynamically parameterized map projections to dynamically shift the center of the projection to the area being displayed, minimizing distortion and ensuring that Great Circles and Rhumb Lines maintain their true shapes for accurate navigation. Unlike traditional projections that fix a center for a global view, an ECDIS dynamically adjusts the map projection and its parameters so the area on screen is the focus, making it suitable for worldwide coverage without significant visual distortion.
Maps used in navigation vs. maps in media.
---






