Hi guys, I just wondered if anyone had tried to export the data from their deeper and create their own custom maps? The data collected is far greater than is shown on the map from the app, so it should be possible to build a far better detailed map.
In reply to Post #1
Only slightly relevant to the thread so my apologies. The Canal and Rivers Trust (formally British Waterways) manage many waters in England including a number of reservoirs. Through a simple freedom of information request, you can ask for any maps or contour data of any resser they manage and they are obliged to provide. Often in depth (!) mapping is undertaken to gauge the volume of water in the resser and that is only possible through a sonar survey. They have astonishing detail.
Only slightly relevant to the thread so my apologies. The Canal and Rivers Trust (formally British Waterways) manage many waters in England including a number of reservoirs. Through a simple freedom of information request, you can ask for any maps or contour data of any resser they manage and they are obliged to provide. Often in depth (!) mapping is undertaken to gauge the volume of water in the resser and that is only possible through a sonar survey. They have astonishing detail.
In reply to Post #1
You say the data collected is greater than displayed.
Have you spoken to deeper and they have told you this?
Just curious. And was it depth , position or both.
Also do you know what format the data is exported in.
By the way i would tag the position data with a accuracy check if its possible as this will be important to make the chart as accurate as possible.
Once you know you the accuracy of you data then decide on a grid/bin size.
Good luck.
You say the data collected is greater than displayed.
Have you spoken to deeper and they have told you this?
Just curious. And was it depth , position or both.
Also do you know what format the data is exported in.
By the way i would tag the position data with a accuracy check if its possible as this will be important to make the chart as accurate as possible.
Once you know you the accuracy of you data then decide on a grid/bin size.
Good luck.
In reply to Post #1
I been using deepers data to make maps for a while.
You can downlload the necessary information from their lake map website, to an excel file. The file contains the GPS co ordinates and depth in metres .
Next step is to use software to make the charts. I use Reefmaster, its not free but other free mapping can be used.
I find Reefmaster works well as I can use it with my lowrance sonar when boat fishing or when mapping from my baitboat. Reefmaster also has a sonar viewer but doesn't work with deeper sonar files.
Its also possible to extract the sonar data direct from the selling database used by the app but lake iew is much simpler method.
I find the lakeview maps have poor resulting the contours really need to 1ft intervals for freshwater purposes.
I'll see if I can upload an example.
I been using deepers data to make maps for a while.
You can downlload the necessary information from their lake map website, to an excel file. The file contains the GPS co ordinates and depth in metres .
Next step is to use software to make the charts. I use Reefmaster, its not free but other free mapping can be used.
I find Reefmaster works well as I can use it with my lowrance sonar when boat fishing or when mapping from my baitboat. Reefmaster also has a sonar viewer but doesn't work with deeper sonar files.
Its also possible to extract the sonar data direct from the selling database used by the app but lake iew is much simpler method.
I find the lakeview maps have poor resulting the contours really need to 1ft intervals for freshwater purposes.
I'll see if I can upload an example.
In reply to Post #2
Didn't know that
Didn't know that
In reply to Post #4
Do you know of any of the free mapping software options? I tried looking last year and got stuck with 'pay for reefmaster' as the only option
Do you know of any of the free mapping software options? I tried looking last year and got stuck with 'pay for reefmaster' as the only option
In reply to Post #4
Totally agree, a 1ft contour would be far better. I have extracted the data and was going to try and import it into Revit. That way I could easily fine tune the map as well.
So you have made a map with reefmaster?
I have downloaded qgis which is free, but not played with it yet.
Totally agree, a 1ft contour would be far better. I have extracted the data and was going to try and import it into Revit. That way I could easily fine tune the map as well.
So you have made a map with reefmaster?
I have downloaded qgis which is free, but not played with it yet.
In reply to Post #7
I've used qgis briefly but stick to ArcGIS Normally at work. How I make my maps of this nature is;
Use the hill shade tool on the data (Lidar normally but I'm assuming you'll have similar from the deeper)
Change colour scale to suit what you want
Use the tool to extract contours (can't recall the name of it sorry)
Change the categories for display on the new contour layer
Overlay it on top of the hill shade layer.
This process will probably more difficult on Qgis but I wouldn't be surprised if there isn't a plug-in to create bathymetric maps automatically as there is hundreds of them available. That would make your life easier by far. On the tabs at the top of the window there will be a tools or plug-ins tab
I've used qgis briefly but stick to ArcGIS Normally at work. How I make my maps of this nature is;
Use the hill shade tool on the data (Lidar normally but I'm assuming you'll have similar from the deeper)
Change colour scale to suit what you want
Use the tool to extract contours (can't recall the name of it sorry)
Change the categories for display on the new contour layer
Overlay it on top of the hill shade layer.
This process will probably more difficult on Qgis but I wouldn't be surprised if there isn't a plug-in to create bathymetric maps automatically as there is hundreds of them available. That would make your life easier by far. On the tabs at the top of the window there will be a tools or plug-ins tab
In reply to Post #8
Do you make them from the base CSV file?
Do you make them from the base CSV file?
In reply to Post #6
I've not looked at other mapping software for a while, I did have ago with qgis but personally found it tricky to get to grips with but that was a few years ago. It may have improved since.
Mark.
I've not looked at other mapping software for a while, I did have ago with qgis but personally found it tricky to get to grips with but that was a few years ago. It may have improved since.
Mark.
In reply to Post #9
No the LiDar data has already been processed to show visually as a surface/terrain model.
I'd assume you can convert your base CSV in to such model with a plugin tool though. Qgis is pretty nifty that way. Can do a lot with it.
What fields are on the CSV and how are they populated?
No the LiDar data has already been processed to show visually as a surface/terrain model.
I'd assume you can convert your base CSV in to such model with a plugin tool though. Qgis is pretty nifty that way. Can do a lot with it.
What fields are on the CSV and how are they populated?
In reply to Post #11
columns with long, lat and height (depth).
In my head it just needs setting up to show a really detailed map, rather than the map shown on lakebook or deeper app. There are hundreds of data points (depending on size of scan) so we should be able to make maps as detailed as we please, within reason.
columns with long, lat and height (depth).
In my head it just needs setting up to show a really detailed map, rather than the map shown on lakebook or deeper app. There are hundreds of data points (depending on size of scan) so we should be able to make maps as detailed as we please, within reason.
In reply to Post #12
Yeah you just need to import the CSV in to qgis and concert it to a different file type.
Shouldn't be too difficult. There's plenty of guidance on qgis out there and the plug in tools that you can use.
Yeah you just need to import the CSV in to qgis and concert it to a different file type.
Shouldn't be too difficult. There's plenty of guidance on qgis out there and the plug in tools that you can use.
In reply to Post #12
Couple of things.
Make sure it's the depth you use and not height as some data strings do have height in as it's one of the things gps is used for.
Also be careful about using every bit of data as the gps position will not be more accurate than 3m I would guess and unless it's a very calm day and your gps is working well you can get positional jumps which will spoil your contour.
This may be one of the reasons why deeper do it as they do.
Just some thoughts from me anyway.
On a side note I'd be interested to see what the maps you generate are like.
Good luck.
Couple of things.
Make sure it's the depth you use and not height as some data strings do have height in as it's one of the things gps is used for.
Also be careful about using every bit of data as the gps position will not be more accurate than 3m I would guess and unless it's a very calm day and your gps is working well you can get positional jumps which will spoil your contour.
This may be one of the reasons why deeper do it as they do.
Just some thoughts from me anyway.
On a side note I'd be interested to see what the maps you generate are like.
Good luck.