Here is a diff that fixes the problem:
Index: ./VTK/Common/vtkFunctionParser.cxx
===================================================================
RCS file: /cvsroot/ParaView3/ParaView3/VTK/Common/vtkFunctionParser.cxx,v
retrieving revision 1.44
diff -r1.44 vtkFunctionParser.cxx
1455,1457c1455,1460
< index += this->GetMathFunctionStringLength(functionNumber);
< currentChar = this->Function[index];
< if ( currentChar != '(' )
---
> currentChar =
this->Function[index+this->GetMathFunctionStringLength(functionNumber)];
> if ( currentChar == '(' )
> {
> index += this->GetMathFunctionStringLength(functionNumber);
> }
> else
1459,1460d1461
< vtkErrorMacro("Syntax error: input to math function not in "
< << "parentheses; see position " << index);
1463c1464
< return 0;
---
> return 1;
Regards,
Paul
2009/6/25 Paul Edwards <[email protected]>
> Hi,
>
> I have a filter than creates secondary flow variables for post processing.
> They have names such as "absolute temperature". There is a problem with the
> Python parser where it will take the "abs" from absolute and interpret it as
> the math function. Is there a way around this?
>
> Here are steps to reproduce this:
>
> from paraview.simple import *
> cone = Cone()
> calc = Calculator(cone)
> calc.Function = "17"
> calc.ResultArrayName = "absolute"
> calc2 = Calculator(calc)
> calc2.Function = "(absolute) - 15"
> calc2.UpdatePipeline()
>
> The only solution I can think of is to rename the scalars that are output
> from the filter. Does anyone have any other ideas? (In future might it be
> worth allowing the user to put values in {}'s or something?)
>
> Regards,
> Paul
>
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