Electronic
Chart Background Guide--
Charts for Computers and Computer Navigation Systems
Photo Region CD's combine Maptech ChartKit raster charts with aerial and high-altitude photographs. The photographs are geo-referenced for latitude and longitude so that position can be plotted on both chart and photo simultaneously.
The following marine navigation software packages support Maptech Photo Regions:
Other marine navigation packages may support Photo Regions; check your user's manual for compatibility or e-mail us for additional information.
All chart raster scans are at a resolution of 254 dpi and are made from NOAA's mylar-film lithography masters. Colors are consistent with NOAA paper charts; most photos are also in color. Harbor, ocean, and planning charts and photos are bundled on CD-ROM's in regional groups covering U. S. coastal waters and the Great Lakes.
Sample Photo Region Image Set
