[Matplotlib-users] Basemap shiftgrid
Hi All, I am having problems plotting data in Basemap. I have tried some of the different projections such as Robinson and Equidistant Cylindrical, however kept running into the error WARNING: x coordinate not monotonically increasing - contour plot may not be what you expect. If it looks odd, your can either adjust the map projection region to be consistent with your data, or (if your data is on a global lat/lon grid) use the shiftgrid function to adjust the data to be consistent with the map projection region (see examples/contour_demo.py). Having read some other forums, I see that it is due to the fact that the longitude is based on 0-360 rather that -180 to 180. I have been trying to rectify this with shiftgrid. I have used shiftgrid and have moved my longitudes to -180 to 180 however I keep running up with the error: ValueError: lon0 outside of range of lonsin I also manage to get one plot out, which has the right projection I want (I am looking over the Atlantic) however the data isnt shifting in line with the longitudes. Would anyone know why this is the case? I have am using shiftgrid as below and the Basemap projection of Equidistant cylindrical (I have also tried Robinson however end up with similar result of data not moving in line with the longitude) MSLP = aso_mslp.data MSLP_background = np.mean(MSLP, axis = 0) # shifting grid to run from -180 to 180 rather than 0-360 MSLP_background,lon = shiftgrid(180., MSLP_background, lon, start=False) #setting the map in order to plot the data map = Basemap(projection ='cyl', llcrnrlat=-90, urcrnrlat=90, llcrnrlon=-180, urcrnrlon=180, resolution='c') Thanks Michelle -- View this message in context: http://matplotlib.1069221.n5.nabble.com/Basemap-shiftgrid-tp43851.html Sent from the matplotlib - users mailing list archive at Nabble.com. -- Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Basemap shiftgrid
Hi Michelle, I might not fully understand your problem, could you have a look at this thread and see if it helps? http://matplotlib.1069221.n5.nabble.com/Fwd-Strange-behaviour-on-plotting-data-on-Ronbinson-projection-using-Basemap-td43222.html#a43233 Cheers, Chao On Wed, Aug 27, 2014 at 9:58 AM, mmc [via matplotlib] ml-node+s1069221n43851...@n5.nabble.com wrote: Hi All, I am having problems plotting data in Basemap. I have tried some of the different projections such as Robinson and Equidistant Cylindrical, however kept running into the error WARNING: x coordinate not monotonically increasing - contour plot may not be what you expect. If it looks odd, your can either adjust the map projection region to be consistent with your data, or (if your data is on a global lat/lon grid) use the shiftgrid function to adjust the data to be consistent with the map projection region (see examples/contour_demo.py). Having read some other forums, I see that it is due to the fact that the longitude is based on 0-360 rather that -180 to 180. I have been trying to rectify this with shiftgrid. I have used shiftgrid and have moved my longitudes to -180 to 180 however I keep running up with the error: ValueError: lon0 outside of range of lonsin I also manage to get one plot out, which has the right projection I want (I am looking over the Atlantic) however the data isnt shifting in line with the longitudes. Would anyone know why this is the case? I have am using shiftgrid as below and the Basemap projection of Equidistant cylindrical (I have also tried Robinson however end up with similar result of data not moving in line with the longitude) MSLP = aso_mslp.data MSLP_background = np.mean(MSLP, axis = 0) # shifting grid to run from -180 to 180 rather than 0-360 MSLP_background,lon = shiftgrid(180., MSLP_background, lon, start=False) #setting the map in order to plot the data map = Basemap(projection ='cyl', llcrnrlat=-90, urcrnrlat=90, llcrnrlon=-180, urcrnrlon=180, resolution='c') Thanks Michelle -- If you reply to this email, your message will be added to the discussion below: http://matplotlib.1069221.n5.nabble.com/Basemap-shiftgrid-tp43851.html To start a new topic under matplotlib - users, email ml-node+s1069221n...@n5.nabble.com To unsubscribe from matplotlib, click here http://matplotlib.1069221.n5.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_codenode=2code=Y2hhb3l1ZWpveUBnbWFpbC5jb218MnwxMzg1NzAzMzQx . NAML http://matplotlib.1069221.n5.nabble.com/template/NamlServlet.jtp?macro=macro_viewerid=instant_html%21nabble%3Aemail.namlbase=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespacebreadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml -- please visit: http://www.globalcarbonatlas.org/ *** Chao YUE Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL) UMR 1572 CEA-CNRS-UVSQ Batiment 712 - Pe 119 91191 GIF Sur YVETTE Cedex Tel: (33) 01 69 08 29 02; Fax:01.69.08.77.16 -- View this message in context: http://matplotlib.1069221.n5.nabble.com/Basemap-shiftgrid-tp43851p43853.html Sent from the matplotlib - users mailing list archive at Nabble.com.-- Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Basemap shiftgrid
Is this related to https://github.com/matplotlib/basemap/issues/163 ? On Wed, Aug 27, 2014 at 5:41 AM, ChaoYue chaoyue...@gmail.com wrote: Hi Michelle, I might not fully understand your problem, could you have a look at this thread and see if it helps? http://matplotlib.1069221.n5.nabble.com/Fwd-Strange-behaviour-on-plotting-data-on-Ronbinson-projection-using-Basemap-td43222.html#a43233 Cheers, Chao On Wed, Aug 27, 2014 at 9:58 AM, mmc [via matplotlib] [hidden email] wrote: Hi All, I am having problems plotting data in Basemap. I have tried some of the different projections such as Robinson and Equidistant Cylindrical, however kept running into the error WARNING: x coordinate not monotonically increasing - contour plot may not be what you expect. If it looks odd, your can either adjust the map projection region to be consistent with your data, or (if your data is on a global lat/lon grid) use the shiftgrid function to adjust the data to be consistent with the map projection region (see examples/contour_demo.py). Having read some other forums, I see that it is due to the fact that the longitude is based on 0-360 rather that -180 to 180. I have been trying to rectify this with shiftgrid. I have used shiftgrid and have moved my longitudes to -180 to 180 however I keep running up with the error: ValueError: lon0 outside of range of lonsin I also manage to get one plot out, which has the right projection I want (I am looking over the Atlantic) however the data isnt shifting in line with the longitudes. Would anyone know why this is the case? I have am using shiftgrid as below and the Basemap projection of Equidistant cylindrical (I have also tried Robinson however end up with similar result of data not moving in line with the longitude) MSLP = aso_mslp.data MSLP_background = np.mean(MSLP, axis = 0) # shifting grid to run from -180 to 180 rather than 0-360 MSLP_background,lon = shiftgrid(180., MSLP_background, lon, start=False) #setting the map in order to plot the data map = Basemap(projection ='cyl', llcrnrlat=-90, urcrnrlat=90, llcrnrlon=-180, urcrnrlon=180, resolution='c') Thanks Michelle If you reply to this email, your message will be added to the discussion below: http://matplotlib.1069221.n5.nabble.com/Basemap-shiftgrid-tp43851.html To start a new topic under matplotlib - users, email [hidden email] To unsubscribe from matplotlib, click here. NAML -- please visit: http://www.globalcarbonatlas.org/ *** Chao YUE Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL) UMR 1572 CEA-CNRS-UVSQ Batiment 712 - Pe 119 91191 GIF Sur YVETTE Cedex Tel: (33) 01 69 08 29 02; Fax:01.69.08.77.16 View this message in context: Re: Basemap shiftgrid Sent from the matplotlib - users mailing list archive at Nabble.com. -- Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Thomas Caswell tcasw...@gmail.com -- Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Basemap shiftgrid
Hi Thomas I have managed to get my data to shift in line with my longitude and latitudes, however now I cannot get it to read out more than one plot. I am running this is a loop as I want to get 34 plots (of 34 separate years of the same variable) however once it runs through the loop once and I get a plot, it stops and I get an error saying lon0 outside of range of lonsin Am I able to do this in a loop or are there other things which maybe causing this? From: Thomas Caswell [via matplotlib] [mailto:ml-node+s1069221n43859...@n5.nabble.com] Sent: 27 August 2014 13:37 To: McCrystall, Michelle R. Subject: Re: Basemap shiftgrid Is this related to https://github.com/matplotlib/basemap/issues/163 ? On Wed, Aug 27, 2014 at 5:41 AM, ChaoYue [hidden email]/user/SendEmail.jtp?type=nodenode=43859i=0 wrote: Hi Michelle, I might not fully understand your problem, could you have a look at this thread and see if it helps? http://matplotlib.1069221.n5.nabble.com/Fwd-Strange-behaviour-on-plotting-data-on-Ronbinson-projection-using-Basemap-td43222.html#a43233 Cheers, Chao On Wed, Aug 27, 2014 at 9:58 AM, mmc [via matplotlib] [hidden email] wrote: Hi All, I am having problems plotting data in Basemap. I have tried some of the different projections such as Robinson and Equidistant Cylindrical, however kept running into the error WARNING: x coordinate not monotonically increasing - contour plot may not be what you expect. If it looks odd, your can either adjust the map projection region to be consistent with your data, or (if your data is on a global lat/lon grid) use the shiftgrid function to adjust the data to be consistent with the map projection region (see examples/contour_demo.py). Having read some other forums, I see that it is due to the fact that the longitude is based on 0-360 rather that -180 to 180. I have been trying to rectify this with shiftgrid. I have used shiftgrid and have moved my longitudes to -180 to 180 however I keep running up with the error: ValueError: lon0 outside of range of lonsin I also manage to get one plot out, which has the right projection I want (I am looking over the Atlantic) however the data isnt shifting in line with the longitudes. Would anyone know why this is the case? I have am using shiftgrid as below and the Basemap projection of Equidistant cylindrical (I have also tried Robinson however end up with similar result of data not moving in line with the longitude) MSLP = aso_mslp.data MSLP_background = np.mean(MSLP, axis = 0) # shifting grid to run from -180 to 180 rather than 0-360 MSLP_background,lon = shiftgrid(180., MSLP_background, lon, start=False) #setting the map in order to plot the data map = Basemap(projection ='cyl', llcrnrlat=-90, urcrnrlat=90, llcrnrlon=-180, urcrnrlon=180, resolution='c') Thanks Michelle If you reply to this email, your message will be added to the discussion below: http://matplotlib.1069221.n5.nabble.com/Basemap-shiftgrid-tp43851.html To start a new topic under matplotlib - users, email [hidden email] To unsubscribe from matplotlib, click here. NAML -- please visit: http://www.globalcarbonatlas.org/ *** Chao YUE Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL) UMR 1572 CEA-CNRS-UVSQ Batiment 712 - Pe 119 91191 GIF Sur YVETTE Cedex Tel: (33) 01 69 08 29 02; Fax:01.69.08.77.16 View this message in context: Re: Basemap shiftgrid Sent from the matplotlib - users mailing list archive at Nabble.com. -- Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ ___ Matplotlib-users mailing list [hidden email]/user/SendEmail.jtp?type=nodenode=43859i=1 https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Thomas Caswell [hidden email]/user/SendEmail.jtp?type=nodenode=43859i=2 -- Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ ___ Matplotlib-users mailing list [hidden email]/user/SendEmail.jtp?type=nodenode=43859i=3 https://lists.sourceforge.net/lists/listinfo/matplotlib-users If you reply to this email, your message will be added to the discussion below: http://matplotlib.1069221.n5.nabble.com/Basemap-shiftgrid-tp43851p43859.html To unsubscribe from Basemap shiftgrid, click herehttp://matplotlib.1069221.n5.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_codenode=43851code=bWljaG1jckBiYXMuYWMudWt8NDM4NTF8LTQwMzU0MjYzMQ==.
