How do you use a chart plotter?

[alant]

'Ang on a bit; charts have always been in 3D. Depths & heights are marked so you have lat Long & height = 3 dimensions. Charts (& maps) are of limited value if only 2D.


It's alright, I do understand what you are saying. 3D graphics are of fairly limited extra value.

I assume he is considering the difference between raster & vector electronic chart systems.

 

[Capt Cautious]

Hi,

to the best of my knowledge nobody does 3d raster charts - can't see how it would be possible really... But no - I was referring to Garmins repackaging of their old data into a sexy 3d graphics app that tells you er....absolutely nothing. The jpg access however - with links to photos of areas and objects, is great. Reminiscent of the beautiful pen and ink coastline drawings on the old charts which served exactly the same purpose.
CC