Revision: 5197
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=5197&view=rev
Author: jswhit
Date: 2008-05-20 05:22:09 -0700 (Tue, 20 May 2008)
Log Message:
-----------
more examples updated to numpy/pyplot namespace
Modified Paths:
--------------
trunk/toolkits/basemap/examples/ccsm_popgrid.py
trunk/toolkits/basemap/examples/fillstates.py
trunk/toolkits/basemap/examples/garp.py
trunk/toolkits/basemap/examples/hurrtracks.py
trunk/toolkits/basemap/examples/panelplot.py
trunk/toolkits/basemap/examples/plot_tissot.py
trunk/toolkits/basemap/examples/plotprecip.py
trunk/toolkits/basemap/examples/plotsst.py
trunk/toolkits/basemap/examples/pnganim.py
trunk/toolkits/basemap/examples/polarmaps.py
trunk/toolkits/basemap/examples/setwh.py
trunk/toolkits/basemap/examples/show_colormaps.py
trunk/toolkits/basemap/examples/testgdal.py
Modified: trunk/toolkits/basemap/examples/ccsm_popgrid.py
===================================================================
--- trunk/toolkits/basemap/examples/ccsm_popgrid.py 2008-05-20 11:52:12 UTC
(rev 5196)
+++ trunk/toolkits/basemap/examples/ccsm_popgrid.py 2008-05-20 12:22:09 UTC
(rev 5197)
@@ -20,10 +20,10 @@
POP grids are used extensively locally in oceanographic and ice models.
"""
-import pylab as pl
from matplotlib import rcParams
-from numpy import ma as MA
-import numpy as N
+from numpy import ma
+import numpy as np
+import matplotlib.pyplot as plt
from mpl_toolkits.basemap import Basemap, NetCDFFile
# read in data from netCDF file.
@@ -36,17 +36,17 @@
fpin.close()
# make longitudes monotonically increasing.
-tlon = N.where(N.greater_equal(tlon,min(tlon[:,0])),tlon-360,tlon)
+tlon = np.where(np.greater_equal(tlon,min(tlon[:,0])),tlon-360,tlon)
# stack grids side-by-side (in longitiudinal direction), so
# any range of longitudes may be plotted on a world map.
-tlon = N.concatenate((tlon,tlon+360),1)
-tlat = N.concatenate((tlat,tlat),1)
-temp = MA.concatenate((temp,temp),1)
+tlon = np.concatenate((tlon,tlon+360),1)
+tlat = np.concatenate((tlat,tlat),1)
+temp = ma.concatenate((temp,temp),1)
tlon = tlon-360.
-pl.figure(figsize=(6,8))
-pl.subplot(2,1,1)
+plt.figure(figsize=(6,8))
+plt.subplot(2,1,1)
# subplot 1 just shows POP grid cells.
map = Basemap(projection='merc', lat_ts=20, llcrnrlon=-180, \
urcrnrlon=180, llcrnrlat=-84, urcrnrlat=84, resolution='c')
@@ -55,22 +55,22 @@
map.fillcontinents(color='white')
x, y = map(tlon,tlat)
-im = map.pcolor(x,y,MA.masked_array(N.zeros(temp.shape,'f'), temp.mask),\
- shading='faceted',cmap=pl.cm.cool,vmin=0,vmax=0)
+im = map.pcolor(x,y,ma.masked_array(np.zeros(temp.shape,'f'), temp.mask),\
+ shading='faceted',cmap=plt.cm.cool,vmin=0,vmax=0)
# disclaimer: these are not really the grid cells because of the
# way pcolor interprets the x and y args.
-pl.title('(A) CCSM POP Grid Cells')
+plt.title('(A) CCSM POP Grid Cells')
# subplot 2 is a contour plot of surface temperature from the
# CCSM ocean model.
-pl.subplot(2,1,2)
+plt.subplot(2,1,2)
map.drawcoastlines()
map.fillcontinents(color='white')
CS1 = map.contourf(x,y,temp,15)
CS2 = map.contour(x,y,temp,15,colors='black',linewidths=0.5)
-pl.title('(B) Surface Temp contours on POP Grid')
+plt.title('(B) Surface Temp contours on POP Grid')
-pl.show()
-#pl.savefig('ccsm_popgrid.ps')
+plt.show()
+#plt.savefig('ccsm_popgrid.ps')
Modified: trunk/toolkits/basemap/examples/fillstates.py
===================================================================
--- trunk/toolkits/basemap/examples/fillstates.py 2008-05-20 11:52:12 UTC
(rev 5196)
+++ trunk/toolkits/basemap/examples/fillstates.py 2008-05-20 12:22:09 UTC
(rev 5197)
@@ -1,5 +1,5 @@
-import pylab as p
-import numpy
+import numpy as np
+import matplotlib.pyplot as plt
from mpl_toolkits.basemap import Basemap as Basemap
from matplotlib.colors import rgb2hex
from matplotlib.patches import Polygon
@@ -68,7 +68,7 @@
# choose a color for each state based on population density.
colors={}
statenames=[]
-cmap = p.cm.hot # use 'hot' colormap
+cmap = plt.cm.hot # use 'hot' colormap
vmin = 0; vmax = 450 # set range.
print m.states_info[0].keys()
for shapedict in m.states_info:
@@ -79,10 +79,10 @@
# calling colormap with value between 0 and 1 returns
# rgba value. Invert color range (hot colors are high
# population), take sqrt root to spread out colors more.
- colors[statename] = cmap(1.-p.sqrt((pop-vmin)/(vmax-vmin)))[:3]
+ colors[statename] = cmap(1.-np.sqrt((pop-vmin)/(vmax-vmin)))[:3]
statenames.append(statename)
# cycle through state names, color each one.
-ax = p.gca() # get current axes instance
+ax = plt.gca() # get current axes instance
for nshape,seg in enumerate(m.states):
# skip DC and Puerto Rico.
if statenames[nshape] not in ['District of Columbia','Puerto Rico']:
@@ -90,7 +90,7 @@
poly = Polygon(seg,facecolor=color,edgecolor=color)
ax.add_patch(poly)
# draw meridians and parallels.
-m.drawparallels(numpy.arange(25,65,20),labels=[1,0,0,0])
-m.drawmeridians(numpy.arange(-120,-40,20),labels=[0,0,0,1])
-p.title('Filling State Polygons by Population Density')
-p.show()
+m.drawparallels(np.arange(25,65,20),labels=[1,0,0,0])
+m.drawmeridians(np.arange(-120,-40,20),labels=[0,0,0,1])
+plt.title('Filling State Polygons by Population Density')
+plt.show()
Modified: trunk/toolkits/basemap/examples/garp.py
===================================================================
--- trunk/toolkits/basemap/examples/garp.py 2008-05-20 11:52:12 UTC (rev
5196)
+++ trunk/toolkits/basemap/examples/garp.py 2008-05-20 12:22:09 UTC (rev
5197)
@@ -1,5 +1,6 @@
from mpl_toolkits.basemap import Basemap
-from pylab import title, show, arange, pi
+import numpy as np
+import matplotlib.pyplot as plt
# the shortest route from the center of the map
# to any other point is a straight line in the azimuthal
@@ -30,11 +31,11 @@
m.drawcoastlines(linewidth=0.5)
m.fillcontinents(color='coral',lake_color='aqua')
# 20 degree graticule.
-m.drawparallels(arange(-80,81,20))
-m.drawmeridians(arange(-180,180,20))
+m.drawparallels(np.arange(-80,81,20))
+m.drawmeridians(np.arange(-180,180,20))
# draw a black dot at the center.
xpt, ypt = m(lon_0, lat_0)
m.plot([xpt],[ypt],'ko')
# draw the title.
-title('The World According to Garp in '+location)
-show()
+plt.title('The World According to Garp in '+location)
+plt.show()
Modified: trunk/toolkits/basemap/examples/hurrtracks.py
===================================================================
--- trunk/toolkits/basemap/examples/hurrtracks.py 2008-05-20 11:52:12 UTC
(rev 5196)
+++ trunk/toolkits/basemap/examples/hurrtracks.py 2008-05-20 12:22:09 UTC
(rev 5197)
@@ -1,16 +1,17 @@
"""
draw Atlantic Hurricane Tracks for storms that reached Cat 4 or 5.
part of the track for which storm is cat 4 or 5 is shown red.
-ESRI shapefile data from http://www.nationalatlas.gov/atlasftp.html
+ESRI shapefile data from http://www.nationalatlas.gov/atlasftplt.html
"""
-import pylab as p
+import numpy as np
+import matplotlib.pyplot as plt
from mpl_toolkits.basemap import Basemap as Basemap
-# Lambert Conformal Conic map.
+# Lambert Conformal Conic maplt.
m = Basemap(llcrnrlon=-100.,llcrnrlat=0.,urcrnrlon=-20.,urcrnrlat=57.,
projection='lcc',lat_1=20.,lat_2=40.,lon_0=-60.,
resolution ='l',area_thresh=1000.)
# create figure.
-fig=p.figure()
+fig=plt.figure()
# read shapefile.
shp_info = m.readshapefile('huralll020','hurrtracks',drawbounds=False)
print shp_info
@@ -32,15 +33,15 @@
xx,yy = zip(*shape)
# show part of track where storm > Cat 4 as thick red.
if cat in ['H4','H5']:
- p.plot(xx,yy,linewidth=1.5,color='r')
+ plt.plot(xx,yy,linewidth=1.5,color='r')
elif cat in ['H1','H2','H3']:
- p.plot(xx,yy,color='k')
+ plt.plot(xx,yy,color='k')
# draw coastlines, meridians and parallels.
m.drawcoastlines()
m.drawcountries()
m.drawmapboundary(fill_color='#99ffff')
m.fillcontinents(color='#cc9966',lake_color='#99ffff')
-m.drawparallels(p.arange(10,70,20),labels=[1,1,0,0])
-m.drawmeridians(p.arange(-100,0,20),labels=[0,0,0,1])
-p.title('Atlantic Hurricane Tracks (Storms Reaching Category 4, 1851-2004)')
-p.show()
+m.drawparallels(np.arange(10,70,20),labels=[1,1,0,0])
+m.drawmeridians(np.arange(-100,0,20),labels=[0,0,0,1])
+plt.title('Atlantic Hurricane Tracks (Storms Reaching Category 4, 1851-2004)')
+plt.show()
Modified: trunk/toolkits/basemap/examples/panelplot.py
===================================================================
--- trunk/toolkits/basemap/examples/panelplot.py 2008-05-20 11:52:12 UTC
(rev 5196)
+++ trunk/toolkits/basemap/examples/panelplot.py 2008-05-20 12:22:09 UTC
(rev 5197)
@@ -1,14 +1,16 @@
from mpl_toolkits.basemap import Basemap
from matplotlib import rcParams
from matplotlib.ticker import MultipleLocator
-import pylab as P
+import numpy as np
+import matplotlib.pyplot as plt
+import matplotlib.mlab as mlab
# read in data on lat/lon grid.
-hgt = P.load('500hgtdata.gz')
-lons = P.load('500hgtlons.gz')
-lats = P.load('500hgtlats.gz')
-lons, lats = P.meshgrid(lons, lats)
+hgt = mlab.load('500hgtdata.gz')
+lons = mlab.load('500hgtlons.gz')
+lats = mlab.load('500hgtlats.gz')
+lons, lats = np.meshgrid(lons, lats)
# Example to show how to make multi-panel plots.
@@ -18,29 +20,29 @@
rcParams['figure.subplot.wspace'] = 0.5 # more width between subplots
# create new figure
-fig=P.figure()
+fig=plt.figure()
# panel 1
mnh = Basemap(lon_0=-105,boundinglat=20.,
resolution='c',area_thresh=10000.,projection='nplaea')
xnh,ynh = mnh(lons,lats)
ax = fig.add_subplot(211)
CS = mnh.contour(xnh,ynh,hgt,15,linewidths=0.5,colors='k')
-CS = mnh.contourf(xnh,ynh,hgt,15,cmap=P.cm.Spectral)
+CS = mnh.contourf(xnh,ynh,hgt,15,cmap=plt.cm.Spectral)
# colorbar on bottom.
pos = ax.get_position()
l, b, w, h = pos.bounds
-cax = P.axes([l, b-0.05, w, 0.025]) # setup colorbar axes
-P.colorbar(cax=cax, orientation='horizontal',ticks=CS.levels[0::4]) # draw
colorbar
-P.axes(ax) # make the original axes current again
+cax = plt.axes([l, b-0.05, w, 0.025]) # setup colorbar axes
+plt.colorbar(cax=cax, orientation='horizontal',ticks=CS.levels[0::4]) # draw
colorbar
+plt.axes(ax) # make the original axes current again
mnh.drawcoastlines(linewidth=0.5)
delat = 30.
-circles = P.arange(0.,90.,delat).tolist()+\
- P.arange(-delat,-90,-delat).tolist()
+circles = np.arange(0.,90.,delat).tolist()+\
+ np.arange(-delat,-90,-delat).tolist()
mnh.drawparallels(circles,labels=[1,0,0,0])
delon = 45.
-meridians = P.arange(0,360,delon)
+meridians = np.arange(0,360,delon)
mnh.drawmeridians(meridians,labels=[1,0,0,1])
-P.title('NH 500 hPa Height (cm.Spectral)')
+plt.title('NH 500 hPa Height (cm.Spectral)')
# panel 2
msh = Basemap(lon_0=-105,boundinglat=-20.,
@@ -48,17 +50,17 @@
xsh,ysh = msh(lons,lats)
ax = fig.add_subplot(212)
CS = msh.contour(xsh,ysh,hgt,15,linewidths=0.5,colors='k')
-CS = msh.contourf(xsh,ysh,hgt,15,cmap=P.cm.Spectral)
+CS = msh.contourf(xsh,ysh,hgt,15,cmap=plt.cm.Spectral)
# colorbar on bottom.
pos = ax.get_position()
l, b, w, h = pos.bounds
-cax = P.axes([l, b-0.05, w, 0.025]) # setup colorbar axes
-P.colorbar(cax=cax,orientation='horizontal',ticks=MultipleLocator(320)) # draw
colorbar
-P.axes(ax) # make the original axes current again
+cax = plt.axes([l, b-0.05, w, 0.025]) # setup colorbar axes
+plt.colorbar(cax=cax,orientation='horizontal',ticks=MultipleLocator(320)) #
draw colorbar
+plt.axes(ax) # make the original axes current again
msh.drawcoastlines(linewidth=0.5)
msh.drawparallels(circles,labels=[1,0,0,0])
msh.drawmeridians(meridians,labels=[1,0,0,1])
-P.title('SH 500 hPa Height (cm.Spectral)')
+plt.title('SH 500 hPa Height (cm.Spectral)')
# 2-panel plot, oriented horizontally, colorbar on right.
@@ -68,33 +70,33 @@
rcParams['figure.subplot.top'] = 0.85
# panel 1
-fig = P.figure()
+fig = plt.figure()
ax = fig.add_subplot(121)
CS = mnh.contour(xnh,ynh,hgt,15,linewidths=0.5,colors='k')
-CS = mnh.contourf(xnh,ynh,hgt,15,cmap=P.cm.RdBu)
+CS = mnh.contourf(xnh,ynh,hgt,15,cmap=plt.cm.RdBu)
# colorbar on right
pos = ax.get_position()
l, b, w, h = pos.bounds
-cax = P.axes([l+w+0.025, b, 0.025, h]) # setup colorbar axes
-P.colorbar(cax=cax, ticks=MultipleLocator(160), format='%4i') # draw colorbar
-P.axes(ax) # make the original axes current again
+cax = plt.axes([l+w+0.025, b, 0.025, h]) # setup colorbar axes
+plt.colorbar(cax=cax, ticks=MultipleLocator(160), format='%4i') # draw colorbar
+plt.axes(ax) # make the original axes current again
mnh.drawcoastlines(linewidth=0.5)
mnh.drawparallels(circles,labels=[1,0,0,0])
mnh.drawmeridians(meridians,labels=[1,0,0,1])
-P.title('NH 500 hPa Height (cm.RdBu)')
+plt.title('NH 500 hPa Height (cm.RdBu)')
# panel 2
ax = fig.add_subplot(122)
CS = msh.contour(xsh,ysh,hgt,15,linewidths=0.5,colors='k')
-CS = msh.contourf(xsh,ysh,hgt,15,cmap=P.cm.RdBu)
+CS = msh.contourf(xsh,ysh,hgt,15,cmap=plt.cm.RdBu)
# colorbar on right.
pos = ax.get_position()
l, b, w, h = pos.bounds
-cax = P.axes([l+w+0.025, b, 0.025, h]) # setup colorbar axes
-P.colorbar(cax=cax, ticks=MultipleLocator(160), format='%4i') # draw colorbar
-P.axes(ax) # make the original axes current again
+cax = plt.axes([l+w+0.025, b, 0.025, h]) # setup colorbar axes
+plt.colorbar(cax=cax, ticks=MultipleLocator(160), format='%4i') # draw colorbar
+plt.axes(ax) # make the original axes current again
msh.drawcoastlines(linewidth=0.5)
msh.drawparallels(circles,labels=[1,0,0,0])
msh.drawmeridians(meridians,labels=[1,0,0,1])
-P.title('SH 500 hPa Height (cm.RdBu)')
-P.show()
+plt.title('SH 500 hPa Height (cm.RdBu)')
+plt.show()
Modified: trunk/toolkits/basemap/examples/plot_tissot.py
===================================================================
--- trunk/toolkits/basemap/examples/plot_tissot.py 2008-05-20 11:52:12 UTC
(rev 5196)
+++ trunk/toolkits/basemap/examples/plot_tissot.py 2008-05-20 12:22:09 UTC
(rev 5197)
@@ -1,4 +1,5 @@
-import pylab as p
+import numpy as np
+import matplotlib.pyplot as plt
from mpl_toolkits.basemap import Basemap as Basemap
from matplotlib.patches import Polygon
@@ -13,44 +14,44 @@
# adapted from http://www.perrygeo.net/wordpress/?p=4
# create new figure
-fig=p.figure()
+fig=plt.figure()
m = Basemap(llcrnrlon=-180,llcrnrlat=-80,urcrnrlon=180,urcrnrlat=80,
projection='cyl')
shp_info = m.readshapefile('tissot','tissot',drawbounds=True)
-ax = p.gca()
+ax = plt.gca()
for nshape,seg in enumerate(m.tissot):
poly = Polygon(seg,facecolor='green',zorder=10)
ax.add_patch(poly)
# draw meridians and parallels.
-m.drawparallels(p.arange(-90,91,30),labels=[1,0,0,0])
-m.drawmeridians(p.arange(-180,180,60),labels=[0,0,0,1])
+m.drawparallels(np.arange(-90,91,30),labels=[1,0,0,0])
+m.drawmeridians(np.arange(-180,180,60),labels=[0,0,0,1])
m.drawcoastlines()
m.fillcontinents()
-p.title('Tissot Diagram - Cylindrical Equal Area')
+plt.title('Tissot Diagram - Cylindrical Equal Area')
print 'plot Cylindrical Equidistant Equal Area Tissot diagram ...'
# create new figure
-fig=p.figure()
+fig=plt.figure()
m = Basemap(llcrnrlon=-180,llcrnrlat=-70,urcrnrlon=180,urcrnrlat=70,
projection='merc',lat_ts=20)
shp_info = m.readshapefile('tissot','tissot',drawbounds=True)
-ax = p.gca()
+ax = plt.gca()
for nshape,seg in enumerate(m.tissot):
poly = Polygon(seg,facecolor='green',zorder=10)
ax.add_patch(poly)
# draw meridians and parallels.
-m.drawparallels(p.arange(-90,91,30),labels=[1,0,0,0])
-m.drawmeridians(p.arange(-180,180,60),labels=[0,0,0,1])
+m.drawparallels(np.arange(-90,91,30),labels=[1,0,0,0])
+m.drawmeridians(np.arange(-180,180,60),labels=[0,0,0,1])
m.drawcoastlines()
m.fillcontinents()
-p.title('Tissot Diagram - Mercator Conformal')
+plt.title('Tissot Diagram - Mercator Conformal')
print 'plot Mercator Conformal Tissot diagram ...'
# create new figure
-fig=p.figure()
+fig=plt.figure()
m = Basemap(lon_0=-60,lat_0=45,projection='ortho')
shp_info = m.readshapefile('tissot','tissot',drawbounds=False)
-ax = p.gca()
+ax = plt.gca()
for nshape,seg in enumerate(m.tissot):
xx,yy = zip(*seg)
if max(xx) < 1.e20 and max(yy) < 1.e20:
@@ -58,42 +59,42 @@
ax.add_patch(poly)
m.drawcoastlines()
m.fillcontinents()
-m.drawparallels(p.arange(-90,91,30))
-m.drawmeridians(p.arange(-180,180,30))
-p.title('Tissot Diagram - Orthographic')
+m.drawparallels(np.arange(-90,91,30))
+m.drawmeridians(np.arange(-180,180,30))
+plt.title('Tissot Diagram - Orthographic')
m.drawmapboundary()
-p.gca().set_frame_on(True)
+plt.gca().set_frame_on(True)
print 'plot Orthographic Tissot diagram ...'
# create new figure
-fig=p.figure()
+fig=plt.figure()
m = Basemap(lon_0=270,lat_0=90,boundinglat=10,projection='npstere')
shp_info = m.readshapefile('tissot','tissot',drawbounds=True)
-ax = p.gca()
+ax = plt.gca()
for nshape,seg in enumerate(m.tissot):
poly = Polygon(seg,facecolor='green',zorder=10)
ax.add_patch(poly)
# draw meridians and parallels.
-m.drawparallels(p.arange(-90,91,30),labels=[1,0,0,0])
-m.drawmeridians(p.arange(-180,180,30),labels=[0,0,0,1])
+m.drawparallels(np.arange(-90,91,30),labels=[1,0,0,0])
+m.drawmeridians(np.arange(-180,180,30),labels=[0,0,0,1])
m.drawcoastlines()
m.fillcontinents()
-p.title('Tissot Diagram - North Polar Stereographic Conformal')
+plt.title('Tissot Diagram - North Polar Stereographic Conformal')
print 'plot North Polar Stereographic Conformal Tissot diagram ...'
# create new figure
-fig=p.figure()
+fig=plt.figure()
m = Basemap(lon_0=270,lat_0=90,boundinglat=10,projection='nplaea')
shp_info = m.readshapefile('tissot','tissot',drawbounds=True)
-ax = p.gca()
+ax = plt.gca()
for nshape,seg in enumerate(m.tissot):
poly = Polygon(seg,facecolor='green',zorder=10)
ax.add_patch(poly)
# draw meridians and parallels.
-m.drawparallels(p.arange(-90,91,30),labels=[1,0,0,0])
-m.drawmeridians(p.arange(-180,180,30),labels=[0,0,0,1])
+m.drawparallels(np.arange(-90,91,30),labels=[1,0,0,0])
+m.drawmeridians(np.arange(-180,180,30),labels=[0,0,0,1])
m.drawcoastlines()
m.fillcontinents()
-p.title('Tissot Diagram - North Polar Lambert Azimuthal Equal Area')
+plt.title('Tissot Diagram - North Polar Lambert Azimuthal Equal Area')
print 'plot North Polar Lambert Azimuthal Equal Area Tissot diagram ...'
-p.show()
+plt.show()
Modified: trunk/toolkits/basemap/examples/plotprecip.py
===================================================================
--- trunk/toolkits/basemap/examples/plotprecip.py 2008-05-20 11:52:12 UTC
(rev 5196)
+++ trunk/toolkits/basemap/examples/plotprecip.py 2008-05-20 12:22:09 UTC
(rev 5197)
@@ -1,5 +1,7 @@
from mpl_toolkits.basemap import Basemap, cm, NetCDFFile
-import pylab, copy
+import numpy as np
+import matplotlib.pyplot as plt
+import copy
from matplotlib import rcParams
# make tick labels smaller
@@ -29,20 +31,20 @@
llcrnrlon=loncorners[0],urcrnrlon=loncorners[2],\
rsphere=6371200.,resolution='l',area_thresh=10000)
# create figure
-fig = pylab.figure(figsize=(6,8.5))
-pylab.subplot(211)
-ax = pylab.gca()
+fig = plt.figure(figsize=(6,8.5))
+plt.subplot(211)
+ax = plt.gca()
# draw coastlines, state and country boundaries, edge of map.
m.drawcoastlines()
m.drawstates()
m.drawcountries()
# draw parallels.
delat = 10.0
-parallels = pylab.arange(0.,90,delat)
+parallels = np.arange(0.,90,delat)
m.drawparallels(parallels,labels=[1,0,0,0],fontsize=10)
# draw meridians
delon = 10.
-meridians = pylab.arange(180.,360.,delon)
+meridians = np.arange(180.,360.,delon)
m.drawmeridians(meridians,labels=[0,0,0,1],fontsize=10)
ny = data.shape[0]; nx = data.shape[1]
lons, lats = m.makegrid(nx, ny) # get lat/lons of ny by nx evenly space grid.
@@ -53,15 +55,15 @@
# new axis for colorbar.
pos = ax.get_position()
l, b, w, h = pos.bounds
-cax = pylab.axes([l+w+0.025, b, 0.025, h]) # setup colorbar axes
+cax = plt.axes([l+w+0.025, b, 0.025, h]) # setup colorbar axes
# draw colorbar.
-pylab.colorbar(cs, cax, format='%g', ticks=clevs, drawedges=False)
-pylab.axes(ax) # make the original axes current again
+plt.colorbar(cs, cax, format='%g', ticks=clevs, drawedges=False)
+plt.axes(ax) # make the original axes current again
# plot title
-pylab.title(plottitle+'- contourf',fontsize=10)
+plt.title(plottitle+'- contourf',fontsize=10)
-pylab.subplot(212)
-ax = pylab.gca()
+plt.subplot(212)
+ax = plt.gca()
# draw coastlines, state and country boundaries, edge of map.
m.drawcoastlines()
m.drawstates()
@@ -79,15 +81,15 @@
# new axis for colorbar.
pos = ax.get_position()
l, b, w, h = pos.bounds
-cax = pylab.axes([l+w+0.025, b, 0.025, h]) # setup colorbar axes
+cax = plt.axes([l+w+0.025, b, 0.025, h]) # setup colorbar axes
# using im2, not im (hack to prevent colors from being
# too compressed at the low end on the colorbar - results
# from highly nonuniform colormap)
-pylab.colorbar(im2, cax, format='%d') # draw colorbar
-pylab.axes(ax) # make the original axes current again
+plt.colorbar(im2, cax, format='%d') # draw colorbar
+plt.axes(ax) # make the original axes current again
# reset colorbar tick labels (hack to get
-cax.set_yticks(pylab.linspace(0,1,len(clevs)))
+cax.set_yticks(np.linspace(0,1,len(clevs)))
cax.set_yticklabels(['%g' % clev for clev in clevs])
# plot title
-pylab.title(plottitle+' - imshow',fontsize=10)
-pylab.show() # display onscreen.
+plt.title(plottitle+' - imshow',fontsize=10)
+plt.show() # display onscreen.
Modified: trunk/toolkits/basemap/examples/plotsst.py
===================================================================
--- trunk/toolkits/basemap/examples/plotsst.py 2008-05-20 11:52:12 UTC (rev
5196)
+++ trunk/toolkits/basemap/examples/plotsst.py 2008-05-20 12:22:09 UTC (rev
5197)
@@ -1,5 +1,7 @@
from mpl_toolkits.basemap import Basemap, NetCDFFile
-import pylab, numpy, sys
+import numpy as np
+import matplotlib.pyplot as plt
+import sys
# read in sea-surface temperature and ice data
# can be a local file, a URL for a remote opendap dataset,
# or (if PyNIO is installed) a GRIB or HDF file.
@@ -25,29 +27,29 @@
delat = lats[1]-lats[0]
lons = (lons - 0.5*delon).tolist()
lons.append(lons[-1]+delon)
-lons = numpy.array(lons,numpy.float64)
+lons = np.array(lons,np.float64)
lats = (lats - 0.5*delat).tolist()
lats.append(lats[-1]+delat)
-lats = numpy.array(lats,numpy.float64)
+lats = np.array(lats,np.float64)
# create Basemap instance for mollweide projection.
# coastlines not used, so resolution set to None to skip
# continent processing (this speeds things up a bit)
#m = Basemap(projection='ortho',lon_0=-110,lat_0=20,resolution=None)
m = Basemap(projection='moll',lon_0=lons.mean(),lat_0=0,resolution=None)
# compute map projection coordinates of grid.
-x, y = m(*numpy.meshgrid(lons, lats))
+x, y = m(*np.meshgrid(lons, lats))
# draw line around map projection limb.
# color background of map projection region.
# missing values over land will show up this color.
m.drawmapboundary(fill_color='0.3')
# plot ice, then with pcolor
-im1 = m.pcolor(x,y,sst,shading='flat',cmap=pylab.cm.jet)
-im2 = m.pcolor(x,y,ice,shading='flat',cmap=pylab.cm.gist_gray)
+im1 = m.pcolor(x,y,sst,shading='flat',cmap=plt.cm.jet)
+im2 = m.pcolor(x,y,ice,shading='flat',cmap=plt.cm.gist_gray)
# draw parallels and meridians, but don't bother labelling them.
-m.drawparallels(numpy.arange(-90.,120.,30.))
-m.drawmeridians(numpy.arange(0.,420.,60.))
+m.drawparallels(np.arange(-90.,120.,30.))
+m.drawmeridians(np.arange(0.,420.,60.))
# draw horizontal colorbar.
-pylab.colorbar(im1,orientation='horizontal')
+plt.colorbar(im1,orientation='horizontal')
# display the plot with a title.
-pylab.title('SST and ICE analysis for %s'%date)
-pylab.show()
+plt.title('SST and ICE analysis for %s'%date)
+plt.show()
Modified: trunk/toolkits/basemap/examples/pnganim.py
===================================================================
--- trunk/toolkits/basemap/examples/pnganim.py 2008-05-20 11:52:12 UTC (rev
5196)
+++ trunk/toolkits/basemap/examples/pnganim.py 2008-05-20 12:22:09 UTC (rev
5197)
@@ -4,8 +4,9 @@
# reads data over http - needs an active internet connection.
-import numpy
-import pylab
+import numpy as np
+import matplotlib.pyplot as plt
+import matplotlib.mlab as mlab
from numpy import ma
import datetime, sys, time, subprocess
from mpl_toolkits.basemap import Basemap, shiftgrid, NetCDFFile, num2date
@@ -62,40 +63,40 @@
vin = vdata[ntime1:ntime2+1,0,:,:]
datelabels = dates[ntime1:ntime2+1]
# add cyclic points
-slp =
numpy.zeros((slpin.shape[0],slpin.shape[1],slpin.shape[2]+1),numpy.float64)
+slp = np.zeros((slpin.shape[0],slpin.shape[1],slpin.shape[2]+1),np.float64)
slp[:,:,0:-1] = slpin; slp[:,:,-1] = slpin[:,:,0]
-u = numpy.zeros((uin.shape[0],uin.shape[1],uin.shape[2]+1),numpy.float64)
+u = np.zeros((uin.shape[0],uin.shape[1],uin.shape[2]+1),np.float64)
u[:,:,0:-1] = uin; u[:,:,-1] = uin[:,:,0]
-v = numpy.zeros((vin.shape[0],vin.shape[1],vin.shape[2]+1),numpy.float64)
+v = np.zeros((vin.shape[0],vin.shape[1],vin.shape[2]+1),np.float64)
v[:,:,0:-1] = vin; v[:,:,-1] = vin[:,:,0]
-longitudes.append(360.); longitudes = numpy.array(longitudes)
+longitudes.append(360.); longitudes = np.array(longitudes)
# make 2-d grid of lons, lats
-lons, lats = numpy.meshgrid(longitudes,latitudes)
+lons, lats = np.meshgrid(longitudes,latitudes)
print 'min/max slp,u,v'
print slp.min(), slp.max()
print uin.min(), uin.max()
print vin.min(), vin.max()
print 'dates'
print datelabels
-# make orthographic basemapylab.
+# make orthographic basemaplt.
m = Basemap(resolution='c',projection='ortho',lat_0=60.,lon_0=-60.)
-pylab.ion() # interactive mode on.
+plt.ion() # interactive mode on.
uin = udata[ntime1:ntime2+1,0,:,:]
vin = vdata[ntime1:ntime2+1,0,:,:]
datelabels = dates[ntime1:ntime2+1]
-# make orthographic basemapylab.
+# make orthographic basemaplt.
m = Basemap(resolution='c',projection='ortho',lat_0=60.,lon_0=-60.)
-pylab.ion() # interactive mode on.
+plt.ion() # interactive mode on.
# create figure, add axes (leaving room for colorbar on right)
-fig = pylab.figure()
+fig = plt.figure()
ax = fig.add_axes([0.1,0.1,0.7,0.7])
# set desired contour levels.
-clevs = numpy.arange(960,1061,5)
+clevs = np.arange(960,1061,5)
# compute native x,y coordinates of grid.
x, y = m(lons, lats)
# define parallels and meridians to draw.
-parallels = numpy.arange(-80.,90,20.)
-meridians = numpy.arange(0.,360.,20.)
+parallels = np.arange(-80.,90,20.)
+meridians = np.arange(0.,360.,20.)
# number of repeated frames at beginning and end is n1.
nframe = 0; n1 = 10
pos = ax.get_position()
@@ -104,42 +105,42 @@
# parallels, meridians and title.
for nt,date in enumerate(datelabels[1:]):
CS =
m.contour(x,y,slp[nt,:,:],clevs,linewidths=0.5,colors='k',animated=True)
- CS = m.contourf(x,y,slp[nt,:,:],clevs,cmap=pylab.cm.RdBu_r,animated=True)
+ CS = m.contourf(x,y,slp[nt,:,:],clevs,cmap=plt.cm.RdBu_r,animated=True)
# plot wind vectors on lat/lon grid.
# rotate wind vectors to map projection coordinates.
#urot,vrot = m.rotate_vector(u[nt,:,:],v[nt,:,:],lons,lats)
- # plot wind vectors over mapylab.
+ # plot wind vectors over maplt.
#Q = m.quiver(x,y,urot,vrot,scale=500)
# plot wind vectors on projection grid (looks better).
# first, shift grid so it goes from -180 to 180 (instead of 0 to 360
- # in longitude). Otherwise, interpolation is messed upylab.
+ # in longitude). Otherwise, interpolation is messed uplt.
ugrid,newlons = shiftgrid(180.,u[nt,:,:],longitudes,start=False)
vgrid,newlons = shiftgrid(180.,v[nt,:,:],longitudes,start=False)
# transform vectors to projection grid.
urot,vrot,xx,yy =
m.transform_vector(ugrid,vgrid,newlons,latitudes,51,51,returnxy=True,masked=True)
- # plot wind vectors over mapylab.
+ # plot wind vectors over maplt.
Q = m.quiver(xx,yy,urot,vrot,scale=500)
# make quiver key.
- qk = pylab.quiverkey(Q, 0.1, 0.1, 20, '20 m/s', labelpos='W')
+ qk = plt.quiverkey(Q, 0.1, 0.1, 20, '20 m/s', labelpos='W')
# draw coastlines, parallels, meridians, title.
m.drawcoastlines(linewidth=1.5)
m.drawparallels(parallels)
m.drawmeridians(meridians)
- pylab.title('SLP and Wind Vectors '+date)
+ plt.title('SLP and Wind Vectors '+date)
if nt == 0: # plot colorbar on a separate axes (only for first frame)
- cax = pylab.axes([l+w-0.05, b, 0.03, h]) # setup colorbar axes
+ cax = plt.axes([l+w-0.05, b, 0.03, h]) # setup colorbar axes
fig.colorbar(CS,drawedges=True, cax=cax) # draw colorbar
cax.text(0.0,-0.05,'mb')
- pylab.axes(ax) # reset current axes
- pylab.draw() # draw the plot
+ plt.axes(ax) # reset current axes
+ plt.draw() # draw the plot
# save first and last frame n1 times
# (so gif animation pauses at beginning and end)
if nframe == 0 or nt == slp.shape[0]-1:
for n in range(n1):
- pylab.savefig('anim%03i'%nframe+'.png')
+ plt.savefig('anim%03i'%nframe+'.png')
nframe = nframe + 1
else:
- pylab.savefig('anim%03i'%nframe+'.png')
+ plt.savefig('anim%03i'%nframe+'.png')
nframe = nframe + 1
ax.clear() # clear the axes for the next plot.
Modified: trunk/toolkits/basemap/examples/polarmaps.py
===================================================================
--- trunk/toolkits/basemap/examples/polarmaps.py 2008-05-20 11:52:12 UTC
(rev 5196)
+++ trunk/toolkits/basemap/examples/polarmaps.py 2008-05-20 12:22:09 UTC
(rev 5197)
@@ -6,17 +6,18 @@
# illustrates special-case polar-centric projections.
from mpl_toolkits.basemap import Basemap
-from pylab import title, colorbar, show, axes, cm, load, arange, \
- figure, ravel, meshgrid
+import numpy as np
+import matplotlib.pyplot as plt
+import matplotlib.mlab as mlab
# read in topo data (on a regular lat/lon grid)
# longitudes go from 20 to 380.
-etopo = load('etopo20data.gz')
-lons = load('etopo20lons.gz')
-lats = load('etopo20lats.gz')
+etopo = mlab.load('etopo20data.gz')
+lons = mlab.load('etopo20lons.gz')
+lats = mlab.load('etopo20lats.gz')
print 'min/max etopo20 data:'
-print min(ravel(etopo)),max(ravel(etopo))
+print etopo.min(),etopo.max()
# these are the 4 polar projections
projs = ['laea','stere','aeqd','ortho'] # short names
@@ -36,7 +37,7 @@
lat_0 = 90.
bounding_lat = 20.
# loop over projections, one for each panel of the figure.
- fig = figure(figsize=(8,8))
+ fig = plt.figure(figsize=(8,8))
npanel = 0
for proj,projname in zip(projs,projnames):
npanel = npanel + 1
@@ -53,18 +54,18 @@
m = Basemap(boundinglat=bounding_lat,lon_0=lon_0,\
resolution='c',area_thresh=10000.,projection=projection)
# compute native map projection coordinates for lat/lon grid.
- x,y = m(*meshgrid(lons,lats))
+ x,y = m(*np.meshgrid(lons,lats))
ax = fig.add_subplot(2,2,npanel)
# make filled contour plot.
- cs = m.contourf(x,y,etopo,20,cmap=cm.jet)
+ cs = m.contourf(x,y,etopo,20,cmap=plt.cm.jet)
# draw coastlines.
m.drawcoastlines()
# draw parallels and meridians.
- m.drawparallels(arange(-80.,90,20.))
- m.drawmeridians(arange(0.,360.,60.))
+ m.drawparallels(np.arange(-80.,90,20.))
+ m.drawmeridians(np.arange(0.,360.,60.))
# draw boundary around map region.
m.drawmapboundary()
# draw title.
- title(hem+' Polar '+projname,y=1.05,fontsize=12)
+ plt.title(hem+' Polar '+projname,y=1.05,fontsize=12)
print 'plotting '+hem+' Polar '+projname+' basemap ...'
-show()
+plt.show()
Modified: trunk/toolkits/basemap/examples/setwh.py
===================================================================
--- trunk/toolkits/basemap/examples/setwh.py 2008-05-20 11:52:12 UTC (rev
5196)
+++ trunk/toolkits/basemap/examples/setwh.py 2008-05-20 12:22:09 UTC (rev
5197)
@@ -2,7 +2,8 @@
# to the Basemap constructor.
from mpl_toolkits.basemap import Basemap
-from pylab import arange, show, title, figure
+import numpy as np
+import matplotlib.pyplot as plt
# setup projection parameters
lat_0 = 40.
@@ -10,14 +11,14 @@
width = 6000000.
height = 2.*width/3.
delat = 25.
-circles = arange(0.,90.+delat,delat).tolist()+\
- arange(-delat,-90.-delat,-delat).tolist()
+circles = np.arange(0.,90.+delat,delat).tolist()+\
+ np.arange(-delat,-90.-delat,-delat).tolist()
delon = 30.
-meridians = arange(10.,360.,delon)
+meridians = np.arange(10.,360.,delon)
npanel = 0
# plots of the US.
projs = ['lcc','aeqd','aea','laea','eqdc','stere']
-fig = figure(figsize=(7,7))
+fig = plt.figure(figsize=(7,7))
for proj in projs:
m = Basemap(width=width,height=height,
resolution='c',projection=proj,\
@@ -30,6 +31,6 @@
m.drawstates()
m.drawparallels(circles)
m.drawmeridians(meridians)
- title('proj = '+proj+' centered on %sW, %sN' % (lon_0,lat_0),fontsize=10)
+ plt.title('proj = '+proj+' centered on %sW, %sN' %
(lon_0,lat_0),fontsize=10)
-show()
+plt.show()
Modified: trunk/toolkits/basemap/examples/show_colormaps.py
===================================================================
--- trunk/toolkits/basemap/examples/show_colormaps.py 2008-05-20 11:52:12 UTC
(rev 5196)
+++ trunk/toolkits/basemap/examples/show_colormaps.py 2008-05-20 12:22:09 UTC
(rev 5197)
@@ -1,16 +1,17 @@
-import numpy, pylab
+import numpy as np
+import matplotlib.pyplot as plt
from mpl_toolkits.basemap import cm
-a=numpy.outer(numpy.arange(0,1,0.01),numpy.ones(10))
-pylab.figure(figsize=(10,7))
-pylab.subplots_adjust(top=0.8,bottom=0.05,left=0.01,right=0.99)
+a=np.outer(np.arange(0,1,0.01),np.ones(10))
+plt.figure(figsize=(10,7))
+plt.subplots_adjust(top=0.8,bottom=0.05,left=0.01,right=0.99)
maps=[m for m in cm.datad.keys() if not m.endswith("_r")]
maps.sort()
l=len(maps)+1
i=1
for m in maps:
- pylab.subplot(1,l,i)
- pylab.axis("off")
- pylab.imshow(a,aspect='auto',cmap=cm.__dict__[m],origin="lower")
- pylab.title(m,rotation=90,fontsize=10)
+ plt.subplot(1,l,i)
+ plt.axis("off")
+ plt.imshow(a,aspect='auto',cmap=cm.__dict__[m],origin="lower")
+ plt.title(m,rotation=90,fontsize=10)
i=i+1
-pylab.show()
+plt.show()
Modified: trunk/toolkits/basemap/examples/testgdal.py
===================================================================
--- trunk/toolkits/basemap/examples/testgdal.py 2008-05-20 11:52:12 UTC (rev
5196)
+++ trunk/toolkits/basemap/examples/testgdal.py 2008-05-20 12:22:09 UTC (rev
5197)
@@ -3,13 +3,14 @@
gdal (http://gdal.maptools.org).
Data files must be downloaded manually from USGS:
-http://edcftp.cr.usgs.gov/pub/data/DEM/250/D/denver-w.gz
-http://edcftp.cr.usgs.gov/pub/data/nationalatlas/countyp020.tar.gz
+http://edcftplt.cr.usgs.gov/pub/data/DEM/250/D/denver-w.gz
+http://edcftplt.cr.usgs.gov/pub/data/nationalatlas/countyp020.tar.gz
"""
import gdal
from mpl_toolkits.basemap import Basemap
from gdalconst import *
-import pylab as p
+import numpy as np
+import matplotlib.pyplot as plt
# download from
# http://edcftp.cr.usgs.gov/pub/data/DEM/250/D/denver-w.gz
@@ -26,17 +27,17 @@
m =
Basemap(llcrnrlon=llcrnrlon,llcrnrlat=llcrnrlat,urcrnrlon=urcrnrlon,urcrnrlat=urcrnrlat,projection='cyl')
# create a figure, add an axes
# (leaving room for a colorbar).
-fig = p.figure()
+fig = plt.figure()
ax = fig.add_axes([0.1,0.1,0.75,0.75])
# plot image from DEM over map.
im = m.imshow(array,origin='upper')
# make a colorbar.
-cax = p.axes([0.875, 0.1, 0.05, 0.75]) # setup colorbar axes.
-p.colorbar(cax=cax) # draw colorbar
-p.axes(ax) # make the original axes current again
+cax = plt.axes([0.875, 0.1, 0.05, 0.75]) # setup colorbar axes.
+plt.colorbar(cax=cax) # draw colorbar
+plt.axes(ax) # make the original axes current again
# draw meridians and parallels.
-m.drawmeridians(p.linspace(llcrnrlon+0.1,urcrnrlon-0.1,5),labels=[0,0,0,1],fmt='%4.2f')
-m.drawparallels(p.linspace(llcrnrlat+0.1,urcrnrlat-0.1,5),labels=[1,0,0,0],fmt='%4.2f')
+m.drawmeridians(np.linspace(llcrnrlon+0.1,urcrnrlon-0.1,5),labels=[0,0,0,1],fmt='%4.2f')
+m.drawparallels(np.linspace(llcrnrlat+0.1,urcrnrlat-0.1,5),labels=[1,0,0,0],fmt='%4.2f')
# plot county boundaries from
# http://edcftp.cr.usgs.gov/pub/data/nationalatlas/countyp020.tar.gz
shp_info =
m.readshapefile('countyp020','counties',drawbounds=True,linewidth=1.0)
@@ -46,6 +47,6 @@
x,y = m(lons,lats)
m.plot(x,y,'ko')
for name,xx,yy in zip(names,x,y):
- p.text(xx+0.01,yy+0.01,name)
-p.title(gd.GetDescription()+' USGS DEM with county boundaries')
-p.show()
+ plt.text(xx+0.01,yy+0.01,name)
+plt.title(gd.GetDescription()+' USGS DEM with county boundaries')
+plt.show()
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