RemoveMathFromGDML.GDMLexpressionRemover Class Reference

Inheritance diagram for RemoveMathFromGDML.GDMLexpressionRemover:

Public Member Functions
def	__init__ (self, options=None)
def	initROOT (self)
def	pass_floats (self, expression)
def	purify_native (self, expression)
def	purify_ROOT (self, expression)

Static Public Member Functions
def	sanitize (s)

Public Attributes
	constants
	environment
	options
	formula
	purify
	ROOT

Detailed Description

Definition at line 74 of file RemoveMathFromGDML.py.

Constructor & Destructor Documentation

def RemoveMathFromGDML.GDMLexpressionRemover.__init__	(		self,
			options = None
	)

Definition at line 75 of file RemoveMathFromGDML.py.

   def __init__(self, options = None):
      self.constants = {}
      self.environment = vars(math)
      self.options = options
      if not self.options.NoROOTformula:
         self.initROOT()
         self.formula = self.ROOT.TFormula("GDMLexpressionRemoverFormula", "0");
         self.purify = self.purify_ROOT
      else:
         self.purify = self.purify_native

Member Function Documentation

def RemoveMathFromGDML.GDMLexpressionRemover.initROOT

(

self

)

Definition at line 91 of file RemoveMathFromGDML.py.

   def initROOT(self):
      try:
         import ROOT
      except ImportError:
         raise ConfigurationError \
           ("Can't load ROOT module: I can't use ROOT to evaluate formulas.")
      ROOT.gErrorIgnoreLevel = ROOT.kFatal # do not even print errors
      f = ROOT.TFormula("FTest", "1/2*2");
      if f.Eval(0.) != 1.:
         raise ConfigurationError(
           """This script won't work with ROOT version (%s);\n"""
           """Please set upa recent version 5.\n"""
           """(quick test: 'TFormula("F", "1/2*2").Eval(0.)' should return 1)"""
           % ROOT.gROOT.GetVersion()
           )
      self.ROOT = ROOT # store the module for loca use

def RemoveMathFromGDML.GDMLexpressionRemover.pass_floats	(		self,
			expression
	)

Definition at line 109 of file RemoveMathFromGDML.py.

   def pass_floats(self, expression):
      float(expression) # just throw an exception if not a float
      return expression

def RemoveMathFromGDML.GDMLexpressionRemover.purify_native	(		self,
			expression
	)

Definition at line 114 of file RemoveMathFromGDML.py.

   def purify_native(self, expression):
      try: return self.pass_floats(expression)
      except ValueError: pass
      
      # is it a valid expression?
      try:
         sanitized = self.sanitize(expression)
         return str(eval(sanitized, self.environment, self.constants))
      except:
         return expression

def RemoveMathFromGDML.GDMLexpressionRemover.purify_ROOT	(		self,
			expression
	)

Definition at line 126 of file RemoveMathFromGDML.py.

   def purify_ROOT(self, expression):
      try: return self.pass_floats(expression)
      except ValueError: pass
      
      # is it a valid expression?
      if self.formula.Compile(expression) == 0:
         return str(self.formula.Eval(0.))
      else:
         return expression

def RemoveMathFromGDML.GDMLexpressionRemover.sanitize (   s )

static

Definition at line 88 of file RemoveMathFromGDML.py.

   def sanitize(s):
      return s.replace("^", "**")

Member Data Documentation

RemoveMathFromGDML.GDMLexpressionRemover.constants

Definition at line 76 of file RemoveMathFromGDML.py.

RemoveMathFromGDML.GDMLexpressionRemover.environment

Definition at line 77 of file RemoveMathFromGDML.py.

RemoveMathFromGDML.GDMLexpressionRemover.formula

Definition at line 81 of file RemoveMathFromGDML.py.

RemoveMathFromGDML.GDMLexpressionRemover.options

Definition at line 78 of file RemoveMathFromGDML.py.

RemoveMathFromGDML.GDMLexpressionRemover.purify

Definition at line 82 of file RemoveMathFromGDML.py.

RemoveMathFromGDML.GDMLexpressionRemover.ROOT

Definition at line 106 of file RemoveMathFromGDML.py.

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The documentation for this class was generated from the following file:

• larsoft/bin/v06_00_00-root6/RemoveMathFromGDML.py