Re: [Matplotlib-users] Plotting NOAA grib2 data in basemap
On 29 January 2014 03:21, Eric Firing efir...@hawaii.edu wrote: On 2014/01/28 10:01 AM, A Short wrote: Hi - Ive now improved my code and confirmed the use of the right grib file but i cant for the life of me figure out the missing data near the coastline..? Could anyone help? The present contouring algorithm works with rectangular blocks, and if any corner has missing data, nothing is filled for that block. This will improve shortly, cutting off the corners of some of those empty blocks. I am currently testing the new algorithm for this prior to submitting it for others' approval. Ian -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Plotting NOAA grib2 data in basemap
Is there any work around so it looks like the below image? Could anyone confirm that this would be the correct grib file for The North Atlantic..? ftp://ftpprd.ncep.noaa.gov/pub/data/nccf/com/wave/prod/wave.20140129/nww3.t06z.grib.grib2 Thanks for all the help http://matplotlib.1069221.n5.nabble.com/file/n42798/figure_1.png -- View this message in context: http://matplotlib.1069221.n5.nabble.com/Plotting-NOAA-grib2-data-in-basemap-tp42698p42798.html Sent from the matplotlib - users mailing list archive at Nabble.com. -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Plotting NOAA grib2 data in basemap
On 2014/01/28 11:40 PM, Ian Thomas wrote: On 29 January 2014 03:21, Eric Firing efir...@hawaii.edu mailto:efir...@hawaii.edu wrote: On 2014/01/28 10:01 AM, A Short wrote: Hi - Ive now improved my code and confirmed the use of the right grib file but i cant for the life of me figure out the missing data near the coastline..? Could anyone help? The present contouring algorithm works with rectangular blocks, and if any corner has missing data, nothing is filled for that block. This will improve shortly, cutting off the corners of some of those empty blocks. I am currently testing the new algorithm for this prior to submitting it for others' approval. Ian, I'm glad to hear that! One possibility would be to use a temporary rcParam (temporary in that it might be phased out after a couple releases) to allow switching between the two algorithms. This would make it much easier to test, and it would also allow a transition during which people could reproduce results obtained with earlier mpl. It would also be a safety measure, in case someone hits a corner case which the new algorithm doesn't handle but the old one does--not that I'm expecting such cases to arise. Eric Ian -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Plotting NOAA grib2 data in basemap
On 2014/01/29 5:41 AM, A Short wrote: Is there any work around so it looks like the below image? It looks like with any reasonable contouring algorithm, this would require interpolating into land regions, contouring, and then plotting the land on top. The key is the interpolation, not the plotting. The example you show might have been interpolated to a finer grid everywhere, not just in the missing value regions. I can't comment on the file itself. Eric Could anyone confirm that this would be the correct grib file for The North Atlantic..? ftp://ftpprd.ncep.noaa.gov/pub/data/nccf/com/wave/prod/wave.20140129/nww3.t06z.grib.grib2 Thanks for all the help http://matplotlib.1069221.n5.nabble.com/file/n42798/figure_1.png -- View this message in context: http://matplotlib.1069221.n5.nabble.com/Plotting-NOAA-grib2-data-in-basemap-tp42698p42798.html Sent from the matplotlib - users mailing list archive at Nabble.com. -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Plotting NOAA grib2 data in basemap
IMHO that's the most straightforward approach. He can use masked array for empty blocks (if contour data doesn't already contain the holes as masked array) and apply inpainting, then draw the land. For more details about inpainting: http://stackoverflow.com/a/17125125/992005 On Wed, Jan 29, 2014 at 6:22 PM, Eric Firing efir...@hawaii.edu wrote: On 2014/01/29 5:41 AM, A Short wrote: Is there any work around so it looks like the below image? It looks like with any reasonable contouring algorithm, this would require interpolating into land regions, contouring, and then plotting the land on top. The key is the interpolation, not the plotting. The example you show might have been interpolated to a finer grid everywhere, not just in the missing value regions. -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
