Comments on: Developer’s Corner: Supporting Wind Barbs In GeoServer and GeoTools

By: simone giannecchini

simone giannecchini — Mon, 02 Feb 2015 11:39:41 +0000

Ciao Miguel,
lots of questions in a single comment :):

-1- TIME parameter works with wind barbs as it is an orthogonal concept
-2- you can mix functions and WPS processes together with the wind barbs symbology

The example here above is for raster data but wind barbs can work also with vector data.

By: Miguel A. Manso

Miguel A. Manso — Sun, 25 Jan 2015 11:50:20 +0000

Dear Simone,
Is it possible to compute on the fly needed interpolation of module and direction from a point layer of wind data (same params) using scripting and using wind barbs to show with wms-time client?
Is it possible with SLD them?
Regards
Miguel A.

By: simone giannecchini

simone giannecchini — Wed, 23 Apr 2014 09:52:33 +0000

Dear Brad,
two things:
-1- you can compute module and direction on the fly either via preprocessing (NCML, scripting and so on) or on the fly directly in the SLD (slower)
-2- we are working on the concept of virtual raster that would allow you to select bands from existing raster hence creating a multiband raster by mixing up different netCDF datasets like U and V. The same would work for GriB.

We should get the proposal for the GeoServer community next week.

Simone.

By: Brad Hards

Brad Hards — Sat, 19 Apr 2014 02:16:17 +0000

In reply to Brad Hards.

Ah, ignore that. On re-reading I see it is from raster source.

By: Brad Hards

Brad Hards — Sat, 19 Apr 2014 02:14:12 +0000

Does this work from underlying netCDF / GRIB data? If so, how do you resolve the u and v into speed and direction in GeoServer?