def _computePlottedRange(self):
"""Convert the range requested into a plotted range."""
s = self.settings
self.plottedrange = [s.min, s.max]
# match the scale of this axis to another
matched = False
if s.match != '':
# locate widget we're matching
# this is ensured to be an Axis
try:
widget = s.get('match').getReferredWidget()
except setting.InvalidType:
widget = None
# this looks valid + sanity checks
if (widget is not None and widget != self and
widget.settings.match == ''):
# update if out of date
if widget.docchangeset != self.document.changeset:
widget._computePlottedRange()
# copy the range
self.plottedrange = list(widget.plottedrange)
matched = True
# automatic lookup of minimum
if s.min == 'Auto' and not matched:
self.plottedrange[0] = self.autorange[0]
if s.max == 'Auto' and not matched:
self.plottedrange[1] = self.autorange[1]
# yuck, but sometimes it's true
# tweak range to make sure things don't blow up further down the
# line
if ( abs(self.plottedrange[0] - self.plottedrange[1]) <
( abs(self.plottedrange[0]) + abs(self.plottedrange[1]) )*1e-8 ):
self.plottedrange[1] = ( self.plottedrange[0] +
max(1., self.plottedrange[0]*0.1) )
# handle axis values round the wrong way
invertaxis = self.plottedrange[0] > self.plottedrange[1]
if invertaxis:
self.plottedrange.reverse()
# make sure log axes don't blow up
if s.log:
if self.plottedrange[0] < 1e-99:
self.plottedrange[0] = 1e-99
if self.plottedrange[1] < 1e-99:
self.plottedrange[1] = 1e-99
if self.plottedrange[0] == self.plottedrange[1]:
self.plottedrange[1] = self.plottedrange[0]*2
# work out tick values and expand axes if necessary
if s.mode in ('numeric', 'labels'):
tickclass = axisticks.AxisTicks
else:
tickclass = axisticks.DateTicks
extendmin = extendmax = False
r = s.autoRange
if r == 'exact':
pass
elif r == 'next-tick':
if s.min == 'Auto':
extendmin = True
if s.max == 'Auto':
extendmax = True
else:
val = {'+2%': 0.02, '+5%': 0.05, '+10%': 0.1, '+15%': 0.15}[r]
if s.log:
# logarithmic
logrng = abs( N.log(self.plottedrange[1]) -
N.log(self.plottedrange[0]) )
if s.min == 'Auto':
self.plottedrange[0] /= N.exp(logrng * val)
if s.max == 'Auto':
self.plottedrange[1] *= N.exp(logrng * val)
else:
# linear
rng = self.plottedrange[1] - self.plottedrange[0]
if s.min == 'Auto':
self.plottedrange[0] -= rng*val
if s.max == 'Auto':
self.plottedrange[1] += rng*val
axs = tickclass(self.plottedrange[0], self.plottedrange[1],
s.MajorTicks.number, s.MinorTicks.number,
extendmin = extendmin, extendmax = extendmax,
logaxis = s.log )
axs.getTicks()
self.plottedrange[0] = axs.minval
self.plottedrange[1] = axs.maxval
self.majortickscalc = axs.tickvals
self.minortickscalc = axs.minorticks
self.autoformat = axs.autoformat
# override values if requested
if len(s.MajorTicks.manualTicks) > 0:
ticks = []
for i in s.MajorTicks.manualTicks:
if i >= self.plottedrange[0] and i <= self.plottedrange[1]:
ticks.append(i)
self.majortickscalc = N.array(ticks)
# invert bounds if axis was inverted
if invertaxis:
self.plottedrange.reverse()
if self.majorticks is not None:
self.majortickscalc = N.array(self.majorticks)
if self.minorticks is not None:
self.minortickscalc = N.array(self.minorticks)
self.docchangeset = self.document.changeset
def _computePlottedRange(self):
"""Convert the range requested into a plotted range."""
s = self.settings
self.plottedrange = [s.min, s.max]
# match the scale of this axis to another
matched = False
if s.match != '':
# locate widget we're matching
# this is ensured to be an Axis
try:
widget = s.get('match').getReferredWidget()
except setting.InvalidType:
widget = None
# this looks valid + sanity checks
if (widget is not None and widget != self and
widget.settings.match == ''):
# update if out of date
if widget.docchangeset != self.document.changeset:
widget._computePlottedRange()
# copy the range
self.plottedrange = list(widget.plottedrange)
matched = True
# automatic lookup of minimum
if s.min == 'Auto' and not matched:
self.plottedrange[0] = self.autorange[0]
if s.max == 'Auto' and not matched:
self.plottedrange[1] = self.autorange[1]
# yuck, but sometimes it's true
# tweak range to make sure things don't blow up further down the
# line
if ( abs(self.plottedrange[0] - self.plottedrange[1]) <
( abs(self.plottedrange[0]) + abs(self.plottedrange[1]) )*1e-8 ):
self.plottedrange[1] = ( self.plottedrange[0] +
max(1., self.plottedrange[0]*0.1) )
# handle axis values round the wrong way
invertaxis = self.plottedrange[0] > self.plottedrange[1]
if invertaxis:
self.plottedrange.reverse()
# make sure log axes don't blow up
if s.log:
if self.plottedrange[0] < 1e-99:
self.plottedrange[0] = 1e-99
if self.plottedrange[1] < 1e-99:
self.plottedrange[1] = 1e-99
if self.plottedrange[0] == self.plottedrange[1]:
self.plottedrange[1] = self.plottedrange[0]*2
r = s.autoRange
if r == 'exact':
pass
elif r == 'next-tick':
pass
else:
val = {'+2%': 0.02, '+5%': 0.05, '+10%': 0.1, '+15%': 0.15}[r]
if s.log:
# logarithmic
logrng = abs( N.log(self.plottedrange[1]) -
N.log(self.plottedrange[0]) )
if s.min == 'Auto':
self.plottedrange[0] /= N.exp(logrng * val)
if s.max == 'Auto':
self.plottedrange[1] *= N.exp(logrng * val)
else:
# linear
rng = self.plottedrange[1] - self.plottedrange[0]
if s.min == 'Auto':
self.plottedrange[0] -= rng*val
if s.max == 'Auto':
self.plottedrange[1] += rng*val
self.computeTicks()
# invert bounds if axis was inverted
if invertaxis:
self.plottedrange.reverse()
self.docchangeset = self.document.changeset
