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Diffstat (limited to 'src/sardana/pool/poolcontrollers/DiscretePseudoMotorController.py')
| -rw-r--r-- | src/sardana/pool/poolcontrollers/DiscretePseudoMotorController.py | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/src/sardana/pool/poolcontrollers/DiscretePseudoMotorController.py b/src/sardana/pool/poolcontrollers/DiscretePseudoMotorController.py deleted file mode 100644 index 96885064..00000000 --- a/src/sardana/pool/poolcontrollers/DiscretePseudoMotorController.py +++ /dev/null @@ -1,174 +0,0 @@ -#!/usr/bin/env python - -############################################################################## -## -## This file is part of Sardana -## -## http://www.sardana-controls.org/ -## -## Copyright 2011 CELLS / ALBA Synchrotron, Bellaterra, Spain -## -## Sardana is free software: you can redistribute it and/or modify -## it under the terms of the GNU Lesser General Public License as published by -## the Free Software Foundation, either version 3 of the License, or -## (at your option) any later version. -## -## Sardana is distributed in the hope that it will be useful, -## but WITHOUT ANY WARRANTY; without even the implied warranty of -## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -## GNU Lesser General Public License for more details. -## -## You should have received a copy of the GNU Lesser General Public License -## along with Sardana. If not, see <http://www.gnu.org/licenses/>. -## -############################################################################## - -"""This module contains the definition of a discrete pseudo motor controller -for the Sardana Device Pool""" - -__all__ = ["DiscretePseudoMotorController"] - -__docformat__ = 'restructuredtext' - -import json - -from sardana import DataAccess -from sardana.pool.controller import PseudoMotorController -from sardana.pool.controller import Type, Access, Description - -CALIBRATION = 'Calibration' -LABELS = 'Labels' - - -class DiscretePseudoMotorController(PseudoMotorController): - """A discrete pseudo motor controller which converts physical motor positions - to discrete values""" - - gender = "DiscretePseudoMotorController" - model = "PseudoMotor" - organization = "Sardana team" - image = "" - - pseudo_motor_roles = ("OutputMotor",) - motor_roles = ("InputMotor",) - - axis_attributes = {CALIBRATION:#type hackish until arrays supported - {Type : str, - Description : 'Flatten list of a list of triples and [min,cal,max]', - Access : DataAccess.ReadWrite, - 'fget' : 'get%s' % CALIBRATION, - 'fset' : 'set%s' % CALIBRATION}, - LABELS:#type hackish until arrays supported - {Type : str, - Description : 'String list with the meaning of each discrete position', - Access : DataAccess.ReadWrite, - 'fget' : 'get%s' % LABELS, - 'fset' : 'set%s' % LABELS} - } - - - def __init__(self, inst, props, *args, **kwargs): - PseudoMotorController.__init__(self, inst, props, *args, **kwargs) - self._calibration = None - self._positions = None - self._labels = None - - - def GetAxisAttributes(self, axis): - axis_attrs = PseudoMotorController.GetAxisAttributes(self, axis) - axis_attrs = dict(axis_attrs) - axis_attrs['Position']['type'] = float - return axis_attrs - - - def CalcPseudo(self, axis, physical_pos, curr_pseudo_pos): - llabels = len(self._labels) - positions = self._positions - calibration = self._calibration - lcalibration = len(calibration) - - value = physical_pos[0] - #case 0: nothing to translate, only round about integer the attribute value - if llabels == 0: - return int(value) - #case 1: only uses the labels. Available positions in POSITIONS - elif lcalibration == 0: - value = int(value) - try: positions.index(value) - except: raise Exception("Invalid position.") - else: return value - #case 1+fussy: the physical position must be in one of the defined - #ranges, and the DiscretePseudoMotor position is defined in labels - elif llabels == lcalibration: - for fussyPos in calibration: - if value >= fussyPos[0] and value <= fussyPos[2]: - return positions[calibration.index(fussyPos)] - #if the loop ends, current value is not in the fussy areas. - raise Exception("Invalid position.") - else: - raise Exception("Bad configuration on axis attributes.") - - - def CalcPhysical(self, axis, pseudo_pos, curr_physical_pos): - #If Labels is well defined, the write value must be one this struct - llabels = len(self._labels) - positions = self._positions - calibration = self._calibration - lcalibration = len(calibration) - value = pseudo_pos[0] - - #case 0: nothing to translate, what is written goes to the attribute - if llabels == 0: - return value - #case 1: only uses the labels. Available positions in POSITIONS - elif lcalibration == 0: - self._log.debug("Value = %s", value) - try: positions.index(value) - except: raise Exception("Invalid position.") - return value - #case 1+fussy: the write to the to the DiscretePseudoMotorController - #is translated to the central position of the calibration. - elif llabels == lcalibration: - self._log.debug("Value = %s", value) - try: destination = positions.index(value) - except: raise Exception("Invalid position.") - self._log.debug("destination = %s", destination) - calibrated_position = calibration[destination][1]#central element - self._log.debug("calibrated_position = %s", calibrated_position) - return calibrated_position - - - def getLabels(self,axis): - #hackish until we support DevVarDoubleArray in extra attrs - labels = self._labels - positions = self._positions - labels_str = "" - for i in range(len(labels)): - labels_str += "%s:%d "%(labels[i],positions[i]) - return labels_str[:-1]#remove the final space - - - def setLabels(self,axis,value): - #hackish until we support DevVarStringArray in extra attrs - labels = [] - positions = [] - for pair in value.split(): - l,p = pair.split(':') - labels.append(l) - positions.append(int(p)) - if len(labels) == len(positions): - self._labels = labels - self._positions = positions - else: - raise Exception("Rejecting labels: invalid structure") - - - def getCalibration(self,axis): - return json.dumps(self._calibration) - - - def setCalibration(self,axis,value): - try: - self._calibration = json.loads(value) - except: - raise Exception("Rejecting calibration: invalid structure") |