Aids to navigation: U.S. waters have more than 40,000 buoys, beacons, and lights that mark dangers, and show safe water and limits of dredged channels.NOAA nautical charts depict them all, using ...

Until recently, however, I could not overlay radar returns on the chart plotter on a single screen, because this trick requires connecting the HDS-10 to an electronic compass. Actually, I have a ...

Learn how to make everything from basic line graphs to racing bar charts — all interactive and easily animated — with the echarts4r R package. Topics Spotlight: New Thinking about Cloud Computing ...