Originally Posted by HamishB
Are you concerned about too-much irrelevant info in the bottom status bar "Cursor: lat lon" (I see %02.4f)? or in the dashboard pos? (which for me looks like %02.3f right now)
IMHO the distance calcs, waypoint properties editor, ship's track and GPX export should always work at full precision (but no point reporting to the nanometer); the choose-your-level-of-visual-detail could be user-settable.
Of course, all internal operation should be carried out at full precision...
It would be nice if all at-a-glance displays (status line, routepoint list) would show as few digits as practical (i.e. "dd mm.m"), but high precision should be always available at a click, in Properties Dialogs: AIS
The Cursor position precision in the status line might be matched to zoom level.
However, there is no corresponding "Ships Properties" dialog, so really no place to go to for high precision data on current lat-lon. There were a few requests for "Ships Data" dialog (GPS offsets, hull
dimensions etc), but until this is eventually provided looks like it must be the high precision here. Not everyone does use the Dashboard.
GPX works in different format anyhow - "dd.ddddddddd" (no minutes-of-arc).
opencpn.log - LOGBOOK: "dd.ddddd" (i.e. <1 mtr), starting position and MOB
: "dd.dddd" (i.e. <10 mtr)
BTW, it would be nice if this format could be pasted into WP Properties as well.
I did not try yet the logbook plugin.
In 2.4.423, as before, all calls to "toSDMM()" are made with default precision, except in RouteProp, where I require low precision now. Default precision was and is "dd mm.mmmm"
It looks like for the 2mm requirement three formats would have to be supported, if minutes-of-arc are to be displayed. Would it be sufficient to support this for Mark Properties only or perhaps adopt the GPX format for ultra precision output?
Most nav software
allow configuring the preferences for coordinate formats (decimal degrees or degrees+minutes).