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SF.net SVN: matplotlib:[7236] trunk/toolkits/basemap/lib/mpl_toolkits/ basemap/__init__.py
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From: <js...@us...> - 2009-06-24 18:11:33
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Revision: 7236
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=7236&view=rev
Author: jswhit
Date: 2009-06-24 18:11:30 +0000 (Wed, 24 Jun 2009)
Log Message:
-----------
put ax checking code in a separate private method
Modified Paths:
--------------
trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py
Modified: trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py
===================================================================
--- trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py 2009-06-24 05:51:52 UTC (rev 7235)
+++ trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py 2009-06-24 18:11:30 UTC (rev 7236)
@@ -1203,14 +1203,7 @@
returns matplotlib.collections.PatchCollection representing map boundary.
"""
# get current axes instance (if none specified).
- if ax is None and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif ax is None and self.ax is not None:
- ax = self.ax
+ ax = ax or self._check_ax()
limb = None
if self.projection in ['ortho','geos'] or (self.projection=='aeqd' and\
self._fulldisk):
@@ -1344,14 +1337,7 @@
if self.resolution is None:
raise AttributeError, 'there are no boundary datasets associated with this Basemap instance'
# get current axes instance (if none specified).
- if ax is None and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif ax is None and self.ax is not None:
- ax = self.ax
+ ax = ax or self._check_ax()
# get axis background color.
axisbgc = ax.get_axis_bgcolor()
npoly = 0
@@ -1414,14 +1400,7 @@
if self.resolution is None:
raise AttributeError, 'there are no boundary datasets associated with this Basemap instance'
# get current axes instance (if none specified).
- if ax is None and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif ax is None and self.ax is not None:
- ax = self.ax
+ ax = ax or self._check_ax()
coastlines = LineCollection(self.coastsegs,antialiaseds=(antialiased,))
coastlines.set_color(color)
coastlines.set_linewidth(linewidth)
@@ -1461,14 +1440,7 @@
if not hasattr(self,'cntrysegs'):
self.cntrysegs, types = self._readboundarydata('countries')
# get current axes instance (if none specified).
- if ax is None and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif ax is None and self.ax is not None:
- ax = self.ax
+ ax = ax or self._check_ax()
countries = LineCollection(self.cntrysegs,antialiaseds=(antialiased,))
countries.set_color(color)
countries.set_linewidth(linewidth)
@@ -1508,14 +1480,7 @@
if not hasattr(self,'statesegs'):
self.statesegs, types = self._readboundarydata('states')
# get current axes instance (if none specified).
- if ax is None and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif ax is None and self.ax is not None:
- ax = self.ax
+ ax = ax or self._check_ax()
states = LineCollection(self.statesegs,antialiaseds=(antialiased,))
states.set_color(color)
states.set_linewidth(linewidth)
@@ -1555,14 +1520,7 @@
if not hasattr(self,'riversegs'):
self.riversegs, types = self._readboundarydata('rivers')
# get current axes instance (if none specified).
- if ax is None and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif ax is None and self.ax is not None:
- ax = self.ax
+ ax = ax or self._check_ax()
rivers = LineCollection(self.riversegs,antialiaseds=(antialiased,))
rivers.set_color(color)
rivers.set_linewidth(linewidth)
@@ -1703,14 +1661,7 @@
# draw shape boundaries using LineCollection.
if drawbounds:
# get current axes instance (if none specified).
- if ax is None and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif ax is None and self.ax is not None:
- ax = self.ax
+ ax = ax or self._check_ax()
# make LineCollections for each polygon.
lines = LineCollection(shpsegs,antialiaseds=(1,))
lines.set_color(color)
@@ -1783,14 +1734,7 @@
associated with each parallel.
"""
# get current axes instance (if none specified).
- if ax is None and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif ax is None and self.ax is not None:
- ax = self.ax
+ ax = ax or self._check_ax()
# don't draw meridians past latmax, always draw parallel at latmax.
if latmax is None: latmax = 80.
# offset for labels.
@@ -2043,14 +1987,7 @@
associated with each meridian.
"""
# get current axes instance (if none specified).
- if ax is None and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif ax is None and self.ax is not None:
- ax = self.ax
+ ax = ax or self._check_ax()
# don't draw meridians past latmax, always draw parallel at latmax.
if latmax is None: latmax = 80. # unused w/ cyl, merc or miller proj.
# offset for labels.
@@ -2255,16 +2192,7 @@
Other \**kwargs passed on to matplotlib.patches.Polygon.
returns a matplotlib.patches.Polygon object."""
- if not kwargs.has_key('ax') and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif not kwargs.has_key('ax') and self.ax is not None:
- ax = self.ax
- else:
- ax = kwargs.pop('ax')
+ ax = kwargs.pop('ax', None) or self._check_ax()
g = pyproj.Geod(a=self.rmajor,b=self.rminor)
az12,az21,dist = g.inv(lon_0,lat_0,lon_0,lat_0+radius_deg)
seg = [self(lon_0,lat_0+radius_deg)]
@@ -2577,14 +2505,7 @@
or specified axes instance.
"""
# get current axes instance (if none specified).
- if ax is None and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif ax is None and self.ax is not None:
- ax = self.ax
+ ax = ax or self._check_ax()
# update data limits for map domain.
corners = ((self.llcrnrx,self.llcrnry), (self.urcrnrx,self.urcrnry))
ax.update_datalim( corners )
@@ -2621,16 +2542,7 @@
Other \**kwargs passed on to matplotlib.pyplot.scatter.
"""
- if not kwargs.has_key('ax') and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif not kwargs.has_key('ax') and self.ax is not None:
- ax = self.ax
- else:
- ax = kwargs.pop('ax')
+ ax = kwargs.pop('ax', None) or self._check_ax()
# allow callers to override the hold state by passing hold=True|False
b = ax.ishold()
h = kwargs.pop('hold',None)
@@ -2664,16 +2576,7 @@
Other \**kwargs passed on to matplotlib.pyplot.plot.
"""
- if not kwargs.has_key('ax') and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif not kwargs.has_key('ax') and self.ax is not None:
- ax = self.ax
- else:
- ax = kwargs.pop('ax')
+ ax = kwargs.pop('ax', None) or self._check_ax()
# allow callers to override the hold state by passing hold=True|False
b = ax.ishold()
h = kwargs.pop('hold',None)
@@ -2707,16 +2610,7 @@
returns an matplotlib.image.AxesImage instance.
"""
- if not kwargs.has_key('ax') and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif not kwargs.has_key('ax') and self.ax is not None:
- ax = self.ax
- else:
- ax = kwargs.pop('ax')
+ ax = kwargs.pop('ax', None) or self._check_ax()
kwargs['extent']=(self.llcrnrx,self.urcrnrx,self.llcrnry,self.urcrnry)
# use origin='lower', unless overridden.
if not kwargs.has_key('origin'):
@@ -2758,16 +2652,7 @@
Other \**kwargs passed on to matplotlib.pyplot.pcolor.
"""
- if not kwargs.has_key('ax') and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif not kwargs.has_key('ax') and self.ax is not None:
- ax = self.ax
- else:
- ax = kwargs.pop('ax')
+ ax = kwargs.pop('ax', None) or self._check_ax()
# make x,y masked arrays
# (masked where data is outside of projection limb)
x = ma.masked_values(np.where(x > 1.e20,1.e20,x), 1.e20)
@@ -2805,16 +2690,7 @@
Other \**kwargs passed on to matplotlib.pyplot.pcolormesh.
"""
- if not kwargs.has_key('ax') and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif not kwargs.has_key('ax') and self.ax is not None:
- ax = self.ax
- else:
- ax = kwargs.pop('ax')
+ ax = kwargs.pop('ax', None) or self._check_ax()
# allow callers to override the hold state by passing hold=True|False
b = ax.ishold()
h = kwargs.pop('hold',None)
@@ -2848,16 +2724,7 @@
Other \*args and \**kwargs passed on to matplotlib.pyplot.contour.
"""
- if not kwargs.has_key('ax') and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif not kwargs.has_key('ax') and self.ax is not None:
- ax = self.ax
- else:
- ax = kwargs.pop('ax')
+ ax = kwargs.pop('ax', None) or self._check_ax()
# make sure x is monotonically increasing - if not,
# print warning suggesting that the data be shifted in longitude
# with the shiftgrid function.
@@ -2921,16 +2788,7 @@
Other \*args and \**kwargs passed on to matplotlib.pyplot.scatter.
"""
- if not kwargs.has_key('ax') and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif not kwargs.has_key('ax') and self.ax is not None:
- ax = self.ax
- else:
- ax = kwargs.pop('ax')
+ ax = kwargs.pop('ax', None) or self._check_ax()
# make sure x is monotonically increasing - if not,
# print warning suggesting that the data be shifted in longitude
# with the shiftgrid function.
@@ -2991,16 +2849,7 @@
Other \*args and \**kwargs passed on to matplotlib.pyplot.quiver.
"""
- if not kwargs.has_key('ax') and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif not kwargs.has_key('ax') and self.ax is not None:
- ax = self.ax
- else:
- ax = kwargs.pop('ax')
+ ax = kwargs.pop('ax', None) or self._check_ax()
# allow callers to override the hold state by passing hold=True|False
b = ax.ishold()
h = kwargs.pop('hold',None)
@@ -3037,16 +2886,7 @@
barb method requires matplotlib 0.98.3 or higher,
you have %s""" % _matplotlib_version)
raise NotImplementedError(msg)
- if not kwargs.has_key('ax') and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif not kwargs.has_key('ax') and self.ax is not None:
- ax = self.ax
- else:
- ax = kwargs.pop('ax')
+ ax = kwargs.pop('ax', None) or self._check_ax()
# allow callers to override the hold state by passing hold=True|False
b = ax.ishold()
h = kwargs.pop('hold',None)
@@ -3136,16 +2976,7 @@
rgba_ocean = ocean_color
# look for axes instance (as keyword, an instance variable
# or from plt.gca().
- if not kwargs.has_key('ax') and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif not kwargs.has_key('ax') and self.ax is not None:
- ax = self.ax
- else:
- ax = kwargs.pop('ax')
+ ax = kwargs.pop('ax', None) or self._check_ax()
# if lsmask,lsmask_lons,lsmask_lats keywords not given,
# read default land-sea mask in from file.
if lsmask is None or lsmask_lons is None or lsmask_lats is None:
@@ -3267,16 +3098,7 @@
except ImportError:
raise ImportError('warpimage method requires PIL (http://www.pythonware.com/products/pil)')
from matplotlib.image import pil_to_array
- if not kwargs.has_key('ax') and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif not kwargs.has_key('ax') and self.ax is not None:
- ax = self.ax
- else:
- ax = kwargs.pop('ax')
+ ax = kwargs.pop('ax', None) or self._check_ax()
# default image file is blue marble next generation
# from NASA (http://visibleearth.nasa.gov).
if image == "bluemarble":
@@ -3436,14 +3258,7 @@
Extra keyword ``ax`` can be used to override the default axis instance.
"""
# get current axes instance (if none specified).
- if ax is None and self.ax is None:
- try:
- ax = plt.gca()
- except:
- import matplotlib.pyplot as plt
- ax = plt.gca()
- elif ax is None and self.ax is not None:
- ax = self.ax
+ ax = ax or self._check_ax()
# not valid for cylindrical projection
if self.projection == 'cyl':
raise ValueError("cannot draw map scale for projection='cyl'")
@@ -3578,6 +3393,27 @@
raise KeyError("barstyle must be 'simple' or 'fancy'")
return rets
+ def _check_ax(self, ax=None):
+ """
+ Returns the axis on which to draw.
+ By default, returns self.ax. If None, set it to plt.gca()
+ """
+ #
+ if ax is None:
+ if self.ax is None:
+ try:
+ ax = plt.gca()
+ except:
+ import matplotlib.pyplot as plt
+ ax = plt.gca()
+ else:
+ ax = self.ax
+ # associate an axes instance with this Basemap instance
+ # the first time this method is called.
+ # self.ax = ax
+ #return self.ax
+ return ax
+
### End of Basemap class
def _searchlist(a,x):
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