[egp]

I am getting an error when trying to use the fpos functionality in swak4Foam>funkySetFields.

funkySetFields -latestTime
/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM Extend Project: Open source CFD |
| \\ / O peration | Version: 1.6-ext |
| \\ / A nd | Web: www.extend-project.de |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : 1.6-ext-943ecc426649
Exec : funkySetFields -latestTime
Date : Mar 25 2011
Time : 04:58:35
Host : egpMBA.local
PID : 70817
Case : /Users/egp/OpenFOAM/egp-1.6-ext/run/RayleighTaylor/coarse
nProcs : 1
SigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 1

Part: Alpha
Putting "average((fpos().y+surf(0.5)*fproj().y)>=surf(-0.05)*cos(surf(6.2831)*fpos().x) ? surf(1.0) : surf(0.))" into field alpha1 at t = "1" if condition "true" is true

--> FOAM FATAL ERROR:
Parser Error at "1.9-12" :"syntax error, unexpected TOKEN_fposition"
"average((fpos().y+surf(0.5)*fproj().y)>=surf(-0.05)*cos(surf(6.2831)*fpos().x) ? surf(1.0) : surf(0.))"
" ^^^^ "

From function parsingValue
in file lnInclude/CommonValueExpressionDriverI.H at line 365.

FOAM exiting

This is strange since swak4FoamParsers/FieldValueExpressionDriver.C creates an IOobject named "fpos", and the machinery appears to largely be in place for surface field operations.

Note: this funkySetFieldsDict works just fine with the stand-alone FSF.