Revision: 6844
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=6844&view=rev
Author: jrevans
Date: 2009-01-28 17:55:07 +0000 (Wed, 28 Jan 2009)
Log Message:
-----------
Updated ConversionInterface to recieve the associated calling Axis instance for
each of the methods.
Updated appropriate calls in other code.
Modified DateConverter to use units for timezone specification.
Modified Paths:
--------------
trunk/matplotlib/lib/matplotlib/axis.py
trunk/matplotlib/lib/matplotlib/dates.py
trunk/matplotlib/lib/matplotlib/units.py
Modified: trunk/matplotlib/lib/matplotlib/axis.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/axis.py 2009-01-27 17:41:33 UTC (rev
6843)
+++ trunk/matplotlib/lib/matplotlib/axis.py 2009-01-28 17:55:07 UTC (rev
6844)
@@ -939,7 +939,7 @@
converter = munits.registry.get_converter(data)
if converter is None: return False
self.converter = converter
- default = self.converter.default_units(data)
+ default = self.converter.default_units(self, data)
#print 'update units: default="%s", units=%s"'%(default, self.units)
if default is not None and self.units is None:
self.set_units(default)
@@ -955,7 +955,7 @@
if self.converter is None:
return
- info = self.converter.axisinfo(self.units)
+ info = self.converter.axisinfo(self, self.units)
if info is None:
return
if info.majloc is not None and self.major.locator!=info.majloc:
@@ -982,7 +982,7 @@
#print 'convert_units returning identity: units=%s,
converter=%s'%(self.units, self.converter)
return x
- ret = self.converter.convert(x, self.units)
+ ret = self.converter.convert(self, x, self.units)
#print 'convert_units converting: axis=%s, units=%s, converter=%s,
in=%s, out=%s'%(self, self.units, self.converter, x, ret)
return ret
Modified: trunk/matplotlib/lib/matplotlib/dates.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/dates.py 2009-01-27 17:41:33 UTC (rev
6843)
+++ trunk/matplotlib/lib/matplotlib/dates.py 2009-01-28 17:55:07 UTC (rev
6844)
@@ -1004,29 +1004,56 @@
class DateConverter(units.ConversionInterface):
+ """The units are equivalent to the timezone."""
@staticmethod
- def axisinfo(unit):
+ def axisinfo(axis, unit):
'return the unit AxisInfo'
- if unit=='date':
- majloc = AutoDateLocator()
- majfmt = AutoDateFormatter(majloc)
- return units.AxisInfo(
- majloc = majloc,
- majfmt = majfmt,
- label='',
- )
- else: return None
+ # make sure that the axis does not start at 0
+ ax = axis.axes
+ if axis is ax.get_xaxis():
+ xmin, xmax = ax.dataLim.intervalx
+ if xmin==0.:
+ # no data has been added - let's set the default datalim.
+ # We should probably use a better proxy for the datalim
+ # have been updated than the ignore setting
+ dmax = today = datetime.date.today()
+ dmin = today-datetime.timedelta(days=10)
+
+ ax._process_unit_info(xdata=(dmin, dmax))
+ dmin, dmax = ax.convert_xunits([dmin, dmax])
+
+ ax.viewLim.intervalx = dmin, dmax
+ ax.dataLim.intervalx = dmin, dmax
+ elif axis is ax.get_yaxis():
+ ymin, ymax = ax.dataLim.intervaly
+ if ymin==0.:
+ # no data has been added - let's set the default datalim.
+ # We should probably use a better proxy for the datalim
+ # have been updated than the ignore setting
+ dmax = today = datetime.date.today()
+ dmin = today-datetime.timedelta(days=10)
+
+ ax._process_unit_info(ydata=(dmin, dmax))
+ dmin, dmax = ax.convert_yunits([dmin, dmax])
+
+ ax.viewLim.intervaly = dmin, dmax
+ ax.dataLim.intervaly = dmin, dmax
+
+ majloc = AutoDateLocator(tz=unit)
+ majfmt = AutoDateFormatter(majloc, tz=unit)
+ return units.AxisInfo( majloc=majloc, majfmt=majfmt, label='' )
+
@staticmethod
- def convert(value, unit):
+ def convert(axis, value, unit):
if units.ConversionInterface.is_numlike(value): return value
return date2num(value)
@staticmethod
- def default_units(x):
+ def default_units(axis, x):
'Return the default unit for *x* or None'
- return 'date'
+ return None
units.registry[datetime.date] = DateConverter()
Modified: trunk/matplotlib/lib/matplotlib/units.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/units.py 2009-01-27 17:41:33 UTC (rev
6843)
+++ trunk/matplotlib/lib/matplotlib/units.py 2009-01-28 17:55:07 UTC (rev
6844)
@@ -69,20 +69,20 @@
sequences) and convert them to values mpl can use
"""
@staticmethod
- def axisinfo(unit):
- 'return an units.AxisInfo instance for unit'
+ def axisinfo(axis, unit):
+ 'return an units.AxisInfo instance for axis with the specified units'
return None
@staticmethod
- def default_units(x):
- 'return the default unit for x or None'
+ def default_units(axis, x):
+ 'return the default unit for x or None for the given axis'
return None
@staticmethod
- def convert(obj, unit):
+ def convert(axis, obj, unit):
"""
- convert obj using unit. If obj is a sequence, return the
- converted sequence. The ouput must be a sequence of scalars
+ convert obj using unit for the specified axis. If obj is a sequence,
+ return the converted sequence. The ouput must be a sequence of scalars
that can be used by the numpy array layer
"""
return obj
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