2. OpenEarth tools

How to load or open a georefence image in ldbTool of OET?

2021-08-20T16:38:14Z

Hi OET users!

I am trying to create a landboundary file, but I would like to use ldbTool and take advantage of it to draw the land boundaries over a georeferenced image. I have tried to open *.jpg and *.png files, with .tfw file, *.shp, etc. But I have not had success to load the image in ldbTool.

Any of you know how to load a georeferenced image in ldbTool?

Regards

RE: Extract substance fields from SDS file with waquaio

2018-09-06T18:17:44Z

I'm sorry, I was too quick with my question. Entering the field as 'subst:salinity' works fine. Problem is resolved.

Extract substance fields from SDS file with waquaio

2018-09-06T14:37:21Z

Dear reader,

I have a Simona SDS file, from which I want to read data for postprocessing. Using the waquaio.m script, I can extract all fields succesfully, except the substances (salinity in this case). When I run:

[subst units] = waquaio(FileData,'NG03_02-16nov_2007','substances');

I get two 1x1 cells, containing 'Salinity' and 'ppt', indicating that the salinity field is present in the file. However, when I run:

[field times] = waquaio(FileData,'NG03_02-16nov_2007','subst:<Salinity>');

I get the following error:

Error using waquaio>waqua_get_spatial (line 1902)
Invalid substance name: <salinity>

Error in waquaio (line 295)
[varargout{1:nargout}] = waqua_get_spatial(sds,exper,field,dim,refdate,varargin);

Error in test_waqua (line 12)
[field time] = waquaio(FileData,'NG03_02-16nov_2007','subst:<Salinity>');

Am I typing the format wrong? Can someone help me? I writing the substance field as just 'Salinity' or '<Salinity>' and a couple of other formats, but I can't get it to work.

Kind regards,

Sjoerd

RE: OpenEarthTools in Matlab v. 2017

2018-01-18T17:37:26Z

Hi!

Anyone knows why I am getting this kind of error on my mesh?

Please, Look at the figures.

As you can see, I tried a simple rectangle and the same kind of thing.

Best regards,

Bruno.

RE: OpenEarthTools in Matlab v. 2017

2018-01-12T16:53:47Z

Hi Karoline,

Due to an update in the output format, some of the Matlab scripts for post-processing did not work anymore. I will try to answer both your questions:

1) I just comitted updates of the scripts 'readMap.m'. 'readNet.m', 'plotMap.m' and 'readMap.m' to Open Earth Toolbox for 2D applications. Please try to update your local copy of the repository. If you use SVN Tortoise, this can easily be done by right-clicking the folder you want to update and click 'SVN update'.

2) I did not run into any problems with the script 'readHis.m'. However, the variable names may have changed due to the update in output format. Is the variable you want to open 'cross_section_cumulative_discharge'?
As a sidenote, you can always check filenames using 'nc_dump(filename)'.

Hope this helps. Else, let me know!

Kind regards,
Bob

RE: OpenEarthTools in Matlab v. 2017

2017-12-12T17:39:41Z

Hello everyone!

I have the some problem. Could anyone help us, please?

Best regards,

Bruno.

OpenEarthTools in Matlab v. 2017

2017-08-09T12:05:11Z

Hello everyone,

I am trying to use the OpenEarthTools with the newest Matlab version (R2017a). I downloaded the complete set of files in the /trunk/matlab directory from the deltares server. Trying to acces data within Delft FLow FM outputfiles I get confronted with the following issue:

1) launching via the MATLAB command line with oetsettings and trying to import a map.nc file with the command (I followed the procedure of the video https://www.youtube.com/watch?v=i6xiF39xn8M)
ncfile = 'map.nc';
map=dflowfm.readMap(ncfile)
returns the error

Field assignment to a non-structure array object.
Error in dflowfm.readNetOld (line 132)
G.edge.FlowLinkType.flag_values = nc_attget(ncfile, 'FlowLinkType','flag_values');
Error in dflowfm.readNet (line 128)
G = dflowfm.readNetOld(ncfile);
Error in dflowfm.readMap (line 68)
G = dflowfm.readNet(ncfile);

I also tried doing the same as before but with a history-file, which resulted in a different error

Error using netcdflib
The NetCDF library encountered an error during execution of 'inqVarID' function - 'Variable not found (NC_ENOTVAR)'.
Error in netcdf.inqVarID (line 21)
varid = netcdflib('inqVarID', ncid, varname);
Error in nc_varget_tmw>varget (line 62)
varid=netcdf.inqVarID(gid,varname);
Error in nc_varget_tmw>varget_nc (line 24)
[data,info] = varget(ncid,varname,varargin{:});
Error in nc_varget_tmw (line 5)
[data,info] = varget_nc(ncfile,varname,varargin{:});
Error in nc_vargetr (line 38)
[data,info] = nc_varget_tmw(ncfile,varname,varargin{:});
Error in nc_varget (line 35)
[data,info] = nc_vargetr(ncfile,varname,varargin{:});
Error in dflowfm.readHis (line 41)
hisdata.cross_section_discharge_int = nc_varget(filename, 'cross_section_cumulative_discharge');

I tried with several different map-output files from different runs and projects and always get the same error. Is this due to the newer version of Matlab or am i missing something? Those files definitely contain data, as they can be opened using quickplot.

Any help or advice on what to try would be appreciated,

Thank you,
Karoline

Setting up and post processing 3D models

2016-08-10T20:55:50Z

Hello,

As far as I know the Delta Shell GUI offers minimal support for setting up 3D models (not 2D depth integrated models for which has full support for both setting up and post processing).

I would like to know it there are any Open Earth Tools (matlab, Python, etc) , Quickplot or any other tools that will help with both setup and post processing 3D models.

Could anyone direct me to a document that will help me start on this matter?

Thanks,
Bogdan