def _set_offset(self, value): self._offset = ValidationFunctions.checkNumber(self, 'offset', value)
def _set_offset(self,value): self._offset=ValidationFunctions.checkNumber(self,'offset',value)
def _set_slope(self, value): self._slope = ValidationFunctions.checkNumber(self, 'slope', value)
def _set_slope(self,value): self._slope=ValidationFunctions.checkNumber(self,'slope',value)