Macenc nmea 20002/18/2023 ![]() The distance marks are a chart feature and appear 1 sm apart on USACE charts and usually every 5 sm on NOAA charts. Perhaps the best solution (not knowing the code and programming issues) would be for O to recognize USACE and NOAA charts and automatically label a distance mark as sm instead of km. so if a user prefers to see knots and nm on screen, they still need to see sm on the chart since that's what the chart is measuring and showing. GribAE A freeware Windows interface for WGRIB.Chart S-57 Option for Mile markers labeled "mi" instead.Īfter using OCPN further and gaining more experience with the chart displays, i believe the switch from km to sm should not be user selected as it's independent of which units a user prefers to use - metric, sm, nm.Īll USACE inland river charts and all NOAA costal charts of the Intracoastal Waterways use sm as their distance marks.SoftwareOnBoard A marine navigation application for Windows that includes GRIB overlays on the chart. ![]()
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