When defining a custom coordinate system, what purpose does the Minimum Longitude, Maximum Longitude, Minimum Latitude, and Maximum Latitude values serve?
I have seen them set well beyond the intended boundary of the coordinate system, but have also seen them zeroed out. When / Where are they actually used?
Any insight is appreciated.
This is from the U.S. Coordinate Systems document:
The dimensions of the zone are further restricted by the minimum and maximum longitude and latitude values. These geographic restrictions are to minimize distortion as a result of the map projection technique. While graphics for map features can be drawn outside of the minimum and maximum longitude and latitude ranges, it is not recommended.
https://communities.bentley.com/products/geospatial/desktop/w/geospatial_desktop__wiki/10217/u-s-coordinate-systems-in-microstation-v8i-and-bentley-map-v8i