def align(self, interval, stepSize):
print("plouf align")
intv = self.log10(interval)
x1 = QwtScaleArithmetic.floorEps(intv.minValue(), stepSize)
x2 = QwtScaleArithmetic.ceilEps(intv.maxValue(), stepSize)
return self.pow10(QwtDoubleInterval(x1, x2))
def buildMinorTicks(self, majorTicks, maxMinSteps, stepSize):
if stepSize < 1.1: # major step width is one decade
if maxMinSteps < 1:
return QwtValueList()
if maxMinSteps >= 8:
k0 = 2
kmax = 9
kstep = 1
elif maxMinSteps >= 4:
k0 = 2
kmax = 8
kstep = 2
elif maxMinSteps >= 2:
k0 = 2
kmax = 5
kstep = 3
else:
k0 = 5
kmax = 5
kstep = 1
minorTicks = []
for i in range(0, len(majorTicks)):
v = majorTicks[i]
for k in range(k0, kmax, kstep):
minorTicks += [v * float(k)]
return minorTicks
else: # major step > one decade
minStep = self.divideInterval(stepSize, maxMinSteps)
if minStep == 0.:
return QwtValueList()
minStep = max(minStep, 1.)
# subticks per interval
nMin = round(stepSize / minStep) - 1
# Do the minor steps fit into the interval?
if QwtScaleArithmetic.compareEps(
(nMin + 1) * minStep, qwtAbs(stepSize), stepSize) > 0:
nMin = 0
if nMin < 1:
return QwtValueList() # no subticks
# substep factor = 10^substeps
minFactor = qwtMax(pow(10.0, minStep), 10.0)
minorTicks = []
for i in range(0, majorTicks.count()):
val = majorTicks[i]
for k in range(0, nMin):
val *= minFactor
minorTicks += [val]
return minorTicks
def buildMinorTicks(self, majorTicks, maxMinSteps, stepSize): if stepSize < 1.1: # major step width is one decade if maxMinSteps < 1: return QwtValueList() if maxMinSteps >= 8: k0 = 2 kmax = 9 kstep = 1 elif maxMinSteps >= 4: k0 = 2 kmax = 8 kstep = 2 elif maxMinSteps >= 2: k0 = 2 kmax = 5 kstep = 3 else: k0 = 5 kmax = 5 kstep = 1 minorTicks = [] for i in range(0, len(majorTicks)): v = majorTicks[i] for k in range(k0, kmax, kstep): minorTicks += [v * float(k)] return minorTicks else: # major step > one decade minStep = self.divideInterval(stepSize, maxMinSteps) if minStep == 0.: return QwtValueList() minStep = max(minStep, 1.) # subticks per interval nMin = round(stepSize / minStep) - 1 # Do the minor steps fit into the interval? if QwtScaleArithmetic.compareEps((nMin + 1) * minStep, qwtAbs(stepSize), stepSize) > 0: nMin = 0 if nMin < 1: return QwtValueList() # no subticks # substep factor = 10^substeps minFactor = qwtMax(pow(10.0, minStep), 10.0) minorTicks = [] for i in range(0, majorTicks.count()): val = majorTicks[i] for k in range(0, nMin): val *= minFactor minorTicks += [val] return minorTicks
