Hi,

We have got Lowrance Elite-5 CHIRP and we use ReefMaster with bottom composition option. I would like to know if it possible to create depth transects with Reefmaster (a hand made depth transect with Excel, very long to create...see attached file).

Thank you.

Hi Abramis,
What are the axes on your graph? Is that the depth profile of a single track, or a transect of a generated depth map?

Hi Matt,
The vertical axe is "depth" and the horizontal one is width (meters). I made it with a single track ~perpendicular to the river with Excel. Not a clever job !!!

This is fairly easy to do in the free QGIS software, as long as one manage to import the depth map as a raster surface into QGIS. After that one has only to install the plugin "Profile Tool".

Hi Matt !
Just have to say : THANK YOU VERY MUCH !!!

Hey - don't thank me, thank Foxes!
Very nice example Foxes, thanks for putting it up.
Abramis - for this, you would need to export the map project in ESRI Grid format, which you can then import into QGis as a raster.