def autoScale(self, maxNumSteps, x1, x2, stepSize): """ Align and divide an interval :param int maxNumSteps: Max. number of steps :param float x1: First limit of the interval (In/Out) :param float x2: Second limit of the interval (In/Out) :param float stepSize: Step size :return: tuple (x1, x2, stepSize) .. seealso:: :py:meth:`setAttribute()` """ interval = QwtInterval(x1, x2) interval = interval.normalized() interval.setMinValue(interval.minValue() - self.lowerMargin()) interval.setMaxValue(interval.maxValue() + self.upperMargin()) if self.testAttribute(QwtScaleEngine.Symmetric): interval = interval.symmetrize(self.reference()) if self.testAttribute(QwtScaleEngine.IncludeReference): interval = interval.extend(self.reference()) if interval.width() == 0.0: interval = self.buildInterval(interval.minValue()) stepSize = divideInterval(interval.width(), max([maxNumSteps, 1]), self.base()) if not self.testAttribute(QwtScaleEngine.Floating): interval = self.align(interval, stepSize) x1 = interval.minValue() x2 = interval.maxValue() if self.testAttribute(QwtScaleEngine.Inverted): x1, x2 = x2, x1 stepSize = -stepSize return x1, x2, stepSize
def autoScale(self, maxNumSteps, x1, x2, stepSize): """ Align and divide an interval :param int maxNumSteps: Max. number of steps :param float x1: First limit of the interval (In/Out) :param float x2: Second limit of the interval (In/Out) :param float stepSize: Step size :return: tuple (x1, x2, stepSize) .. seealso:: :py:meth:`setAttribute()` """ interval = QwtInterval(x1, x2) interval = interval.normalized() interval.setMinValue(interval.minValue()-self.lowerMargin()) interval.setMaxValue(interval.maxValue()+self.upperMargin()) if self.testAttribute(QwtScaleEngine.Symmetric): interval = interval.symmetrize(self.reference()) if self.testAttribute(QwtScaleEngine.IncludeReference): interval = interval.extend(self.reference()) if interval.width() == 0.: interval = self.buildInterval(interval.minValue()) stepSize = divideInterval(interval.width(), max([maxNumSteps, 1]), self.base()) if not self.testAttribute(QwtScaleEngine.Floating): interval = self.align(interval, stepSize) x1 = interval.minValue() x2 = interval.maxValue() if self.testAttribute(QwtScaleEngine.Inverted): x1, x2 = x2, x1 stepSize = -stepSize return x1, x2, stepSize
def autoScale(self, maxNumSteps, x1, x2, stepSize): interval = QwtInterval(x1, x2) interval = interval.normalized() interval.setMinValue(interval.minValue()-self.lowerMargin()) interval.setMaxValue(interval.maxValue()+self.upperMargin()) if self.testAttribute(QwtScaleEngine.Symmetric): interval = interval.symmetrize(self.reference()) if self.testAttribute(QwtScaleEngine.IncludeReference): interval = interval.extend(self.reference()) if interval.width() == 0.: interval = self.buildInterval(interval.minValue()) stepSize = divideInterval(interval.width(), max([maxNumSteps, 1]), self.base()) if not self.testAttribute(QwtScaleEngine.Floating): interval = self.align(interval, stepSize) x1 = interval.minValue() x2 = interval.maxValue() if self.testAttribute(QwtScaleEngine.Inverted): x1, x2 = x2, x1 stepSize = -stepSize return x1, x2, stepSize
def autoScale(self, maxNumSteps, x1, x2, stepSize): interval = QwtInterval(x1, x2) interval = interval.normalized() interval.setMinValue(interval.minValue() - self.lowerMargin()) interval.setMaxValue(interval.maxValue() + self.upperMargin()) if self.testAttribute(QwtScaleEngine.Symmetric): interval = interval.symmetrize(self.reference()) if self.testAttribute(QwtScaleEngine.IncludeReference): interval = interval.extend(self.reference()) if interval.width() == 0.: interval = self.buildInterval(interval.minValue()) stepSize = divideInterval(interval.width(), max([maxNumSteps, 1]), self.base()) if not self.testAttribute(QwtScaleEngine.Floating): interval = self.align(interval, stepSize) x1 = interval.minValue() x2 = interval.maxValue() if self.testAttribute(QwtScaleEngine.Inverted): x1, x2 = x2, x1 stepSize = -stepSize return x1, x2, stepSize