Vincent, Thanks! I updated to 3.16 and the expression worked just fine (once I figured out the changes to the mesh interface).
Eric On Tue, Feb 9, 2021 at 9:37 PM Vincent Cloarec <[email protected]> wrote: > Hi, > Which QGIS version? > > It seems 3.10. > Can you try with 3.16? > > Regards. > > Vincent > > Le mar. 9 févr. 2021 à 22:55, Eric Compas <[email protected]> a écrit : > >> All, >> >> I'm experimenting with the mesh viewing and analysis tools >> in QGIS (3.12.3) using both the Crayfish and QGribDownloader plugins. All's >> going very well, and for the most part, the tools are relatively easy to >> use. >> >> While I've gotten several "Mesh calculator" expressions to work correctly >> with a GRIB file (downloaded using the QGribDownloader plugin), I'm running >> into an error with any expression using precipitation group, e.g.: >> >> ("Temperature [C]" > 10) and ("03 hr Total precipitation [kg/(m^2)]" < 2) >> >> >> This expression yields an error "Mesh calculator: Invalid or incompatible >> datasets used." I've tried several permutations and start/end ranges. All >> without luck. >> >> Investigating further, it seems like the number of time "slices" in the >> precipitation group isn't the same as in the temperature group and may not >> be handled correctly in QGIS (??). In the temperature group layer >> properties, the time slider and metadata times are always the same >> (synchronized). For the precipitation group, the time slider and metadata >> in the layer properties aren't in sync: >> >> [image: 2021-02-06_10-34-02b.gif] >> I suspect that the precipitation group has fewer time "slices" that may >> not be handled correctly and hence the error in the "Mesh Calculator" tool. >> >> Is this a user error or some issue with how the mesh tools handle groups >> with differing number of time "slices?" >> >> I'd appreciate any help. >> >> Thanks, >> >> Eric >> >> _______________________________________________ >> 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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