When using unitized data any call to 'set_xlim' or 'set_ylim' will reset any user specified labels or tickers for a given axis and
replace it with the values specified via the unitized data 'axisinfo'
See the following for an example:
···
###########################################
from basic_units import cm, inch
from pylab import figure, show
import numpy
cms = cm *numpy.arange(0, 10, 2)
fig = figure()
ax1 = fig.add_subplot(2,2,1)
ax1.plot(cms, cms)
ax2 = fig.add_subplot(2,2,2)
ax2.plot(cms, cms, xunits=cm, yunits=inch)
ax3 = fig.add_subplot(2,2,3)
ax3.plot(cms, cms, xunits=inch, yunits=cm)
ax3.set_xlabel( "My Label" )
ax3.set_xlim(3, 6) # scalars are interpreted in current units
# Since we call set_xlim with unitized data, the label will be reset.
ax4 = fig.add_subplot(2,2,4)
ax4.plot(cms, cms, xunits=inch, yunits=inch)
ax4.set_xlabel( "My Label" )
ax4.set_xlim(3*cm, 6*cm) # cm are converted to inches
show()
###########################################
--James Evans