def _computeTickVals(self):
"""Compute tick values."""
s = self.settings
# this is a hack as we lose ends off the axis otherwise
d = 1e-6
# get ticks along left axis
atickleft = AxisTicks(self._orgleft-d, self._orgleft+self._size+d,
s.MajorTicks.number, s.MinorTicks.number,
extendmin=False, extendmax=False)
atickleft.getTicks()
# use the interval from above to calculate ticks for right
atickright = AxisTicks(self._orgright-d, self._orgright+self._size+d,
s.MajorTicks.number, s.MinorTicks.number,
extendmin=False, extendmax=False,
forceinterval = atickleft.interval)
atickright.getTicks()
# then calculate for bottom
atickbot = AxisTicks(self._orgbot-d, self._orgbot+self._size+d,
s.MajorTicks.number, s.MinorTicks.number,
extendmin=False, extendmax=False,
forceinterval = atickleft.interval)
atickbot.getTicks()
return atickbot, atickleft, atickright
def drawAxes(self, painter, bounds, datarange, outerbounds=None):
'''Plot axes.'''
s = self.settings
t = s.Tick
if self._maxradius <= 0.:
self._maxradius = 1.
atick = AxisTicks(0, self._maxradius, t.number, t.number*4,
extendbounds=False, extendzero=False)
atick.getTicks()
majtick = atick.tickvals
# draw ticks as circles
if not t.hideannuli:
painter.setPen( s.Tick.makeQPenWHide(painter) )
painter.setBrush( qt4.QBrush() )
for tick in majtick[1:]:
radius = tick / self._maxradius
painter.drawEllipse(qt4.QRectF(
qt4.QPointF( self._xc - radius*self._xscale,
self._yc - radius*self._yscale ),
qt4.QPointF( self._xc + radius*self._xscale,
self._yc + radius*self._yscale ) ))
# setup axes plot
tl = s.TickLabels
scale, format = tl.scale, tl.format
if format == 'Auto':
format = atick.autoformat
painter.setPen( tl.makeQPen() )
font = tl.makeQFont(painter)
# draw radial axis
if not s.TickLabels.hideradial:
for tick in majtick[1:]:
num = utils.formatNumber(tick*scale, format,
locale=self.document.locale)
x = tick / self._maxradius * self._xscale + self._xc
r = utils.Renderer(painter, font, x, self._yc, num,
alignhorz=-1,
alignvert=-1, usefullheight=True)
r.render()
if s.units == 'degrees':
angles = [ u'0°', u'30°', u'60°', u'90°', u'120°', u'150°',
u'180°', u'210°', u'240°', u'270°', u'300°', u'330°' ]
else:
angles = [ '0', u'π/6', u'π/3', u'π/2', u'2π/3', u'5π/6',
u'π', u'7π/6', u'4π/3', u'3π/2', u'5π/3', u'11π/6' ]
align = [ (-1, 1), (-1, 1), (-1, 1), (0, 1), (1, 1), (1, 1),
(1, 0), (1, -1), (1, -1), (0, -1), (-1, -1), (-1, -1) ]
if s.direction == 'anticlockwise':
angles = angles[0:1] + angles[1:][::-1]
# rotate labels if zero not at right
if s.position0 == 'top':
angles = angles[3:] + angles[:4]
elif s.position0 == 'left':
angles = angles[6:] + angles[:7]
elif s.position0 == 'bottom':
angles = angles[9:] + angles[:10]
# draw labels around plot
if not s.TickLabels.hidetangential:
for i in xrange(12):
angle = 2 * N.pi / 12
x = self._xc + N.cos(angle*i) * self._xscale
y = self._yc + N.sin(angle*i) * self._yscale
r = utils.Renderer(painter, font, x, y, angles[i],
alignhorz=align[i][0],
alignvert=align[i][1],
usefullheight=True)
r.render()
# draw spokes
if not t.hidespokes:
painter.setPen( s.Tick.makeQPenWHide(painter) )
painter.setBrush( qt4.QBrush() )
angle = 2 * N.pi / 12
lines = []
for i in xrange(12):
x = self._xc + N.cos(angle*i) * self._xscale
y = self._yc + N.sin(angle*i) * self._yscale
lines.append( qt4.QLineF(qt4.QPointF(self._xc, self._yc),
qt4.QPointF(x, y)) )
painter.drawLines(lines)
def drawAxes(self, painter, bounds, datarange, outerbounds=None):
'''Plot axes.'''
s = self.settings
t = s.Tick
if self._maxradius <= 0.:
self._maxradius = 1.
atick = AxisTicks(0,
self._maxradius,
t.number,
t.number * 4,
extendmin=False,
extendmax=False)
atick.getTicks()
majtick = atick.tickvals
# draw ticks as circles
if not t.hideannuli:
painter.setPen(s.Tick.makeQPenWHide(painter))
painter.setBrush(qt4.QBrush())
for tick in majtick[1:]:
radius = tick / self._maxradius
painter.drawEllipse(
qt4.QRectF(
qt4.QPointF(self._xc - radius * self._xscale,
self._yc - radius * self._yscale),
qt4.QPointF(self._xc + radius * self._xscale,
self._yc + radius * self._yscale)))
# setup axes plot
tl = s.TickLabels
scale, format = tl.scale, tl.format
if format == 'Auto':
format = atick.autoformat
painter.setPen(tl.makeQPen())
font = tl.makeQFont(painter)
# draw radial axis
if not s.TickLabels.hideradial:
for tick in majtick[1:]:
num = utils.formatNumber(tick * scale,
format,
locale=self.document.locale)
x = tick / self._maxradius * self._xscale + self._xc
r = utils.Renderer(painter,
font,
x,
self._yc,
num,
alignhorz=-1,
alignvert=-1,
usefullheight=True)
r.render()
if s.units == 'degrees':
angles = [
u'0°', u'30°', u'60°', u'90°', u'120°', u'150°', u'180°',
u'210°', u'240°', u'270°', u'300°', u'330°'
]
else:
angles = [
'0', u'π/6', u'π/3', u'π/2', u'2π/3', u'5π/6', u'π', u'7π/6',
u'4π/3', u'3π/2', u'5π/3', u'11π/6'
]
align = [(-1, 1), (-1, 1), (-1, 1), (0, 1), (1, 1), (1, 1), (1, 0),
(1, -1), (1, -1), (0, -1), (-1, -1), (-1, -1)]
if s.direction == 'anticlockwise':
angles = angles[0:1] + angles[1:][::-1]
# rotate labels if zero not at right
if s.position0 == 'top':
angles = angles[3:] + angles[:4]
elif s.position0 == 'left':
angles = angles[6:] + angles[:7]
elif s.position0 == 'bottom':
angles = angles[9:] + angles[:10]
# draw labels around plot
if not s.TickLabels.hidetangential:
for i in xrange(12):
angle = 2 * N.pi / 12
x = self._xc + N.cos(angle * i) * self._xscale
y = self._yc + N.sin(angle * i) * self._yscale
r = utils.Renderer(painter,
font,
x,
y,
angles[i],
alignhorz=align[i][0],
alignvert=align[i][1],
usefullheight=True)
r.render()
# draw spokes
if not t.hidespokes:
painter.setPen(s.Tick.makeQPenWHide(painter))
painter.setBrush(qt4.QBrush())
angle = 2 * N.pi / 12
lines = []
for i in xrange(12):
x = self._xc + N.cos(angle * i) * self._xscale
y = self._yc + N.sin(angle * i) * self._yscale
lines.append(
qt4.QLineF(qt4.QPointF(self._xc, self._yc),
qt4.QPointF(x, y)))
painter.drawLines(lines)
def _computeTickVals(self):
"""Compute tick values."""
s = self.settings
# this is a hack as we lose ends off the axis otherwise
d = 1e-6
# get ticks along left axis
atickleft = AxisTicks(self._orgleft-d, self._orgleft+self._size+d,
s.MajorTicks.number, s.MinorTicks.number,
extendmin=False, extendmax=False)
atickleft.getTicks()
# use the interval from above to calculate ticks for right
atickright = AxisTicks(self._orgright-d, self._orgright+self._size+d,
s.MajorTicks.number, s.MinorTicks.number,
extendmin=False, extendmax=False,
forceinterval = atickleft.interval)
atickright.getTicks()
# then calculate for bottom
atickbot = AxisTicks(self._orgbot-d, self._orgbot+self._size+d,
s.MajorTicks.number, s.MinorTicks.number,
extendmin=False, extendmax=False,
forceinterval = atickleft.interval)
atickbot.getTicks()
return atickbot, atickleft, atickright