Hi Matt, MDAL basically supports a bunch of data formats that are mostly defined by the suppliers of the results. It comes with the fileformat (e.g. ASCII or netCDF, ...) + data spec (which arrays are defined/expected with which properties). So either you need to replicate one of the supported formats or alternatively we can write a data reader for your format in MDAL.
Kind Regards, Peter Petrík CPO of Mergin Maps LI <https://www.linkedin.com/in/peter-petrik/>, Mergin Maps <https://www.merginmaps.com> On Sat, Aug 27, 2022 at 3:02 AM Matt Boyd via Qgis-user < [email protected]> wrote: > Thanks Richard, > that looks interesting. I can now get regular grid / square mesh to > display correctly but I'm working with tri-mesh and anything I try to > load using that ends up like this..Just a line of squares. > There's something obvious I'm missing in the format here. > > On Fri, Aug 26, 2022 at 4:56 PM Richard Duivenvoorde > <[email protected]> wrote: > > > > Hi Matt, > > > > I'm not a Mesh expert either, but I use (and create) netcdf using python > using the > > https://github.com/Unidata/netcdf4-python module > > > > Netcdf is pretty good supported in QGIS in my experience > > > > Our data has also a time dimension so we use the CF convention [0] and > fiddling around with the so called UGRID convention [1] But maybe that is > both too much for a simple tin... > > > > I Googled: > > > https://stackoverflow.com/questions/48864357/convert-hdf5-to-netcdf4-in-bash-r-python-or-ncl > > as being able to convert hdf5 to netcdf... didn't/couldn't try/test > though.. > > > > Regards, > > > > Richard Duivenvoorde > > > > [0] > https://en.wikipedia.org/wiki/Climate_and_Forecast_Metadata_Conventions > > [1] http://ugrid-conventions.github.io/ugrid-conventions/#data-variables > > > > On 8/26/22 03:32, Matt Boyd via Qgis-user wrote: > > > Thanks, thats pretty helpful. > > > I'm running QGIS 3.26.2-Buenos Aires installed from osgeo. > > > under the xdmf directory there the xmf/hdf files look pretty similar > > > to what I'm using but they won't load. there's a partial duplicate of > > > the data in the hdf file in that directory as a 2dm file which does > > > work. > > > I'm still not sure if I'm supposed to be able to load the xmf/hdf > > > files directly using mdal? I can easily drop out my hdf5 data to the > > > 2dm format is this the proposed way to do it? > > > > > > Thanks again > > > Matt > > > > > > On Fri, Aug 26, 2022 at 4:09 AM Delaz J via Qgis-user > > > <[email protected]> wrote: > > >> > > >> Hi Matt, > > >> > > >> The mdal repo has a number of mesh data > > >> (https://github.com/lutraconsulting/MDAL/tree/master/tests/data) but > > >> whether these are simple meshes/formats or not is beyond my > > >> understanding of this data type. > > >> > > >> Hope that helps, > > >> > > >> Harrissou > > >> > > >> Le 25/08/2022 à 09:41, Matt Boyd via Qgis-user a écrit : > > >> > > >>> Hi QGIS people, > > >>> I asked something like this a couple of years ago, managed to find > > >>> some workarounds and now that I know a little more about what I'm > > >>> doing I could use a bit of help. > > >>> I've got some simple tin meshes that I'd like to drop into QGIS, they > > >>> get generated in a python modelling software I'm using. > > >>> The data all sits in a single hdf5 file, points with coordinates, the > > >>> cells which are just the indexes of 3 points, plus attributes for > each > > >>> point. About the simplest mesh setup I can imagine. > > >>> I'm trying to find the simplest format that mdal supports with an > > >>> example dataset so I can make something similar. (ideally hdf5 so I > > >>> don't need to work out how to use anything new in python). > > >>> > > >>> Any tips? > > >>> Thanks > > >>> Matt > > >>> _______________________________________________ > > >>> Qgis-user mailing list > > >>> [email protected] > > >>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > > >>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > > >> _______________________________________________ > > >> Qgis-user mailing list > > >> [email protected] > > >> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > > >> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > > > _______________________________________________ > > > Qgis-user mailing list > > > [email protected] > > > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > > > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > > > _______________________________________________ > Qgis-user mailing list > [email protected] > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user >
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