Revision: 8409
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8409&view=rev
Author: jswhit
Date: 2010-06-10 18:25:19 +0000 (Thu, 10 Jun 2010)
Log Message:
-----------
don't force adjustable='box' for AxesGrid compatability. Added example that
uses AxesGrid.
Modified Paths:
--------------
trunk/toolkits/basemap/Changelog
trunk/toolkits/basemap/MANIFEST.in
trunk/toolkits/basemap/examples/README
trunk/toolkits/basemap/examples/run_all.py
trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py
Added Paths:
-----------
trunk/toolkits/basemap/examples/fcstmaps_axesgrid.py
Modified: trunk/toolkits/basemap/Changelog
===================================================================
--- trunk/toolkits/basemap/Changelog 2010-06-10 17:48:10 UTC (rev 8408)
+++ trunk/toolkits/basemap/Changelog 2010-06-10 18:25:19 UTC (rev 8409)
@@ -1,4 +1,6 @@
version 0.99.5 (not yet released)
+ * don't force adjustable='box' so Basemap is compatible
+ with AxesGrid. Added fcstmaps_axesgrid.py example.
* add support for plotting on unstructured grids using
keyword 'tri' in pcolor,contour,contourf methods (which
then forward to tripcolor, tricontour, tricontourf axes
Modified: trunk/toolkits/basemap/MANIFEST.in
===================================================================
--- trunk/toolkits/basemap/MANIFEST.in 2010-06-10 17:48:10 UTC (rev 8408)
+++ trunk/toolkits/basemap/MANIFEST.in 2010-06-10 18:25:19 UTC (rev 8409)
@@ -53,6 +53,7 @@
include examples/geos_demo_3.py
include examples/200706041200-msg-ch01-SAfrica.jpg
include examples/fcstmaps.py
+include examples/fcstmaps_axesgrid.py
include examples/plotsst.py
include examples/wiki_example.py
include examples/fillstates.py
Modified: trunk/toolkits/basemap/examples/README
===================================================================
--- trunk/toolkits/basemap/examples/README 2010-06-10 17:48:10 UTC (rev
8408)
+++ trunk/toolkits/basemap/examples/README 2010-06-10 18:25:19 UTC (rev
8409)
@@ -63,6 +63,9 @@
fcstmaps.py is a sample multi-panel plot that accesses
data over http using the dap module. An internet connection is required.
+fcstmaps_axesgrid.py is the same as above, but illustrates the use
+of the AxesGrid toolkit.
+
plotsst.py also uses dap client to access the data, and also illustrates
how the NetCDFFile function deals with missing values.
Added: trunk/toolkits/basemap/examples/fcstmaps_axesgrid.py
===================================================================
--- trunk/toolkits/basemap/examples/fcstmaps_axesgrid.py
(rev 0)
+++ trunk/toolkits/basemap/examples/fcstmaps_axesgrid.py 2010-06-10
18:25:19 UTC (rev 8409)
@@ -0,0 +1,102 @@
+# this example reads today's numerical weather forecasts
+# from the NOAA OpenDAP servers and makes a multi-panel plot.
+# This version demonstrates the use of the AxesGrid toolkit.
+import numpy as np
+import matplotlib.pyplot as plt
+import sys
+import numpy.ma as ma
+import datetime
+from mpl_toolkits.basemap import Basemap, NetCDFFile, addcyclic, num2date
+from mpl_toolkits.axes_grid1 import AxesGrid
+
+
+# today's date is default.
+if len(sys.argv) > 1:
+ YYYYMMDD = sys.argv[1]
+else:
+ YYYYMMDD = datetime.datetime.today().strftime('%Y%m%d')
+
+# set OpenDAP server URL.
+URLbase="http://nomad1.ncep.noaa.gov:9090/dods/mrf/mrf";
+URL=URLbase+YYYYMMDD+'/mrf'+YYYYMMDD
+print URL+'\n'
+try:
+ data = NetCDFFile(URL)
+except:
+ msg = """
+opendap server not providing the requested data.
+Try another date by providing YYYYMMDD on command line."""
+ raise IOError, msg
+
+
+# read lats,lons,times.
+
+print data.variables.keys()
+latitudes = data.variables['lat']
+longitudes = data.variables['lon']
+fcsttimes = data.variables['time']
+times = fcsttimes[0:6] # first 6 forecast times.
+ntimes = len(times)
+# convert times for datetime instances.
+fdates = num2date(times,units=fcsttimes.units,calendar='standard')
+# make a list of YYYYMMDDHH strings.
+verifdates = [fdate.strftime('%Y%m%d%H') for fdate in fdates]
+# convert times to forecast hours.
+fcsthrs = []
+for fdate in fdates:
+ fdiff = fdate-fdates[0]
+ fcsthrs.append(fdiff.days*24. + fdiff.seconds/3600.)
+print fcsthrs
+print verifdates
+lats = latitudes[:]
+nlats = len(lats)
+lons1 = longitudes[:]
+nlons = len(lons1)
+
+# unpack 2-meter temp forecast data.
+
+t2mvar = data.variables['tmp2m']
+t2min = t2mvar[0:ntimes,:,:]
+t2m = np.zeros((ntimes,nlats,nlons+1),t2min.dtype)
+
+# create figure, set up AxesGrid.
+fig=plt.figure(figsize=(6,8))
+grid = AxesGrid(fig, [0.05,0.01,0.9,0.9],
+ nrows_ncols=(3, 2),
+ axes_pad=0.25,
+ cbar_mode='single',
+ cbar_pad=0.3,
+ cbar_size=0.1,
+ cbar_location='top',
+ share_all=True,
+ )
+
+# create Basemap instance for Orthographic projection.
+m = Basemap(lon_0=-90,lat_0=60,projection='ortho')
+# add wrap-around point in longitude.
+for nt in range(ntimes):
+ t2m[nt,:,:], lons = addcyclic(t2min[nt,:,:], lons1)
+# convert to celsius.
+t2m = t2m-273.15
+# contour levels
+clevs = np.arange(-30,30.1,2.)
+lons, lats = np.meshgrid(lons, lats)
+x, y = m(lons, lats)
+# make subplots.
+for nt,fcsthr in enumerate(fcsthrs):
+ ax = grid[nt]
+ m.ax = ax
+ cs = m.contourf(x,y,t2m[nt,:,:],clevs,cmap=plt.cm.jet,extend='both')
+ m.drawcoastlines(linewidth=0.5)
+ m.drawcountries()
+ m.drawparallels(np.arange(-80,81,20))
+ m.drawmeridians(np.arange(0,360,20))
+ # panel title
+ ax.set_title('%d-h forecast valid '%fcsthr+verifdates[nt],fontsize=9)
+# figure title
+plt.figtext(0.5,0.95,
+ u"2-m temp (\N{DEGREE SIGN}C) forecasts from %s"%verifdates[0],
+ horizontalalignment='center',fontsize=14)
+# a single colorbar.
+cbar = fig.colorbar(cs, cax=grid.cbar_axes[0], orientation='horizontal')
+plt.show()
Modified: trunk/toolkits/basemap/examples/run_all.py
===================================================================
--- trunk/toolkits/basemap/examples/run_all.py 2010-06-10 17:48:10 UTC (rev
8408)
+++ trunk/toolkits/basemap/examples/run_all.py 2010-06-10 18:25:19 UTC (rev
8409)
@@ -2,6 +2,7 @@
test_files = glob.glob('*.py')
test_files.remove('run_all.py')
test_files.remove('fcstmaps.py')
+test_files.remove('fcstmaps_axesgrid.py')
test_files.remove('testgdal.py')
test_files.remove('pnganim.py')
test_files.remove('geos_demo_2.py')
Modified: trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py
===================================================================
--- trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py 2010-06-10
17:48:10 UTC (rev 8408)
+++ trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py 2010-06-10
18:25:19 UTC (rev 8409)
@@ -2628,9 +2628,9 @@
# plot is re-centered in bounding rectangle.
# (anchor instance var determines where plot is placed)
if self.fix_aspect:
- ax.set_aspect('equal',adjustable='box',anchor=self.anchor)
+ ax.set_aspect('equal',anchor=self.anchor)
else:
- ax.set_aspect('auto',adjustable='box',anchor=self.anchor)
+ ax.set_aspect('auto',anchor=self.anchor)
# make sure axis ticks are turned off.
if self.noticks:
ax.set_xticks([])
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