Map Projection and Datum

[Federico G de Salazar]

HI community. I'm trying to convert screenshot images ito Nautical charts and use them with some navigation software. I need to know projection type (mercator,...) and Datum in order to calibrate images. ¿Does any body knows that information ?
Thaks in advance
Fede

[james hawks]

Screen Shots from WW into nautical charts? Dont recomend it. It's not even close to being suitable for navigation. What you want are ENCs (electronic navigational charts). Free from from NOAA in US waters and sold by 2 companies for rest of the world.

NOAA ENCs:

http://nauticalcharts.noaa.gov/MCD/enc/index.htm

Rest of word ENCs:


http://www.primar-stavanger.org/


http://www.ic-enc.org/