Plotting of user-determined depths... and possibly depth contours?

[sv_pelagia]

I am beginning to collect detailed depth surveys of poorly charted (even unsurveyed) or low-detail coves/bays/inlets here in British Columbia.

Using OpenCPN's VDR plugin, GPS, and the boat's sounder (as well as a portable sounder), and subsequently putting data into GPX files (using a simple app I've written).

I've tried (and failed) to figure out a way to easily plot these depth soundings on a chart in OpenCPN, without a symbol and placing the sounding value directly over (no offset) its lat/long.

I've searched the manual and this forum, but nothing comes to mind.
Is there a way to do this easily?

ALSO: It would be great if there were a plugin that would create depth contours from detailed user-obtained depth surveys (as well as doing the above).


(Sorry if I've missed something obvious.)

[Rasbats]

Survey plugin (beta) will record from a vdr play of a recording. Not sure if the imprt gpx will work with your files.

Mike

[sv_pelagia]

I don't see this plugin on the OpenCPN Plug loader.

The wiki indicates it has been "removed for rewrite".

[AedanC]

Not using OpenCpn but you might find the Antares Charts website interesting. They have a page on how they make their charts.

[Rasbats]

sv_pelagia...

Still a work in progress. The thread for the plugin is here:

https://www.cruisersforum.com/forums...-79178-21.html

The GitHub release shown on the last page is the latest available. Tested last night on a clean install. Some of the links to the additional files need updating. Perhaps we could continue the discussion on the thread above.

The link also includes a pdf showing how to use QGIS to make the contours.

Mike

[sv_pelagia]

Thanks Mike.

Indeed, I already have QGIS instqlled, and last night started to view youtube instructions as to how to make contours.

David

[UYA]

A slightly different approach but maybe still of interest:

https://depth.openseamap.org/

This is an attempt to build a user sourced depth chart based on open street map. They collect gps tracks with depth soundings and try to put that into a chart.

Some math magic takes care of waves, tides etc. I find it a fascinating idea but I am not sure how active that project still is...