Hello,
I have recorded many tracks with my echosounder Lowrance on two water body of less than 1 m deep for the first and 3 m deep for the second.
In my new project on Reef Master, I have a problem after defined the work perimeter with the tool "Define Map Boundary" : I select my area then I click on the tool "Contour View" and after that my tracks disapear of the screen. With "Edit", I obtain a Raster but the Vector doesn't work.
For another lake (6 m deep max), I have recorded 2 tracks and in this case I obtain isobaths and it seems to work.
Have you ever met this problem and do you know where the problem could come from?

Thanks for your answer.

Hard to say without a bit more information - could you post a screen-shot please?

Projects are split into three views:

1. The "edit" display, which shows all of the track-points that are used as part of the project, along with map boundaries.
2. The Contour View, which shows contours/isobaths that have been generated. Note that nothing will be shown here unless the map has been generated, and tracks are not shown here.
3. The 3D view - the map must also be generated for anything to be shown.

One possibility is that the depth range in the map is too small to generate any isobaths, as we need at least the top/bottom of one increment. You could try regenerating with a smaller major contour size (e.g. 1m instead of the default, or even less).

Thanks Matt,
I have tried again and changed the major contour size and I obtain the result you can see below (Contour view and Contour view Vector). I have one isobath (0,5 m) but I'd like isobaths every 0,1 m. I try to change the major contour size but nothing happens.
My third ptcture shows a shot screen of another lake where all is good.
Thank you if you understand the problem

0.5m is the minimum for isobaths. I think you need to collect some more data so that you have a higher depth range, before isobaths are going to be useful. For now you need to stick to raster mode.

Ok, all right. Thanks for your help.