Example for a general_features.py file, including 2D detector setup

Example general_features.py file:

#!/usr/bin/env python
#
# file name: $HOME/sardanaMacros/general_features.py
#
# this file contains the general hook and general condition macros
#
# hooks and general condition are enabled/disabled by the macros defined in handleGeneralFeatures.py 
#
   
from sardana.macroserver.macro import *
import HasyUtils

class gc_macro(Macro):
    """ General condition macro """
    
    result_def = [
        [ 'condition_result', Type.Integer, None, "the condition result"],
        ]
    
    def run(self):
        import random
        self.output("Scan check_condition")

        if random.random() > 0.5:
            self.output("Repeat point")
            return 1
        else:
            self.output("DO NOT Repeat point")
            return 0
#
# define detectorName and detectorRoot outside the Macros because they are used twice
#
detectorName = 'lmbd'
detectorRoot = "/gpfs/current/raw"

class gh_pre_scan(Macro):
    '''
      prepareDetectorAttrs() uses the input arguments and the MacroServer
      environment variables ScanFile and ScanID to set these detector attributes:
        FileDir|SaveFilePath|saving_directory: /<rootDir>/<scanName>/<detectorName>
                                               /gpfs/current/raw/au_00001/lmbd
        FilePrefix|saving_prefix:  <scanName>
                                   au_00001
        NbFrames|FrameNumbers|acq_nb_frames: 1

        FileStartNum|saving_next_number:     0
     
     This directory is created: 
        rootDir + "/" + scanName + "/" + detectorName
        /gpfs/current/raw/au_00001/lmbd

     As a safety measure, rootDir is compared with FileDir|SaveFilePath|saving_directory. 
     An error is thrown, if the values are incompatible. Both
     strings are compatible, if FileDir starts with rootDir

     So far Pilatus, Lambda and Lima (Andor) servers are supported
    '''
    def run( self):
        self.output( "general_features.pre_scan hook")
        if not HasyUtils.isInMg( self, detectorName):
            self.output( "general_features.gh_pre_scan: %s not in the MG, DONE" % detectorName)
            return True

        if not HasyUtils.prepareDetectorAttrs( self, name = detectorName, rootDir = detectorRoot):
            self.output( "general_features.gh_pre_scan: prepareDetectors: returned error")
            return False
        return True

class gh_post_scan(Macro):
    def run( self):
        if not HasyUtils.isInMg( self, detectorName):
            self.output( "general_features.gh_post_scan: %s not in the MG, DONE" % detectorName)
            return True
        self.output( "general_features.post_scan %s to %s" % (detectorName, detectorRoot))
        if not HasyUtils.resetDetectorAttrs( self, name = detectorName, rootDir = detectorRoot):
            self.output( "general_features.gh_pre_scan: prepareDetectors: returned error")
            return False
        return True

class gh_pre_move(Macro):
    """ General hook pre-move macro """
    
    def run(self):
        self.output(" General hook pre-move macro")

class gh_post_move(Macro):
    """ General hook post-move macro """
    
    def run(self):
        self.output(" General hook post-move macro")

class gh_pre_acq(Macro):
    """ General hook pre-acq macro """
    
    def run(self):
        self.output(" General hook pre-acq macro")

class gh_post_acq(Macro):
    """ General hook post-acq macro """
    
    def run(self):
        self.output(" General hook post-acq macro")

class gh_post_step(Macro):
    """ General hook post-step macro """
    
    def run(self):
        self.output(" General hook post-step macro")

Example general_functions.py file:

#!/usr/bin/env python
#
# file name: $HOME/sardanaMacros/generalFunctions/general_functions.py
#
# this file contains the general on_stop function
#
# it is enabled/disabled by the macros defined in handleGeneralFeatures.py 
#

import PyTango

def general_on_stop():

        print "General on_stop is called"



2019-11-13