[ancolli]

I am using groovyBC to access to the another region.
If i use as a variable "T{solid_to_fluid/solid}=fim;"; it is working but i am getting an average of fim instead of a local value

 From function ExpressionResult::getUniformInternal(const label size,bool noWarn)
    in file ExpressionResult/ExpressionResultI.H at line 353
    The minimum value 1.859132 and the maximum 5.000479 differ. I will use the average 2.921159;

I tried with mapped variables by reading Examples/test (the cases with "mapped" in the name) as suggested by Bernhard Gschaider

            "fluid_to_.*"
            {
        	type            groovyBC;
		
		gradientExpression "0";
		fractionExpression "1";
		valueExpression	"T";
		variables "T=mapped(fim);";//"T{solid_to_fluid/solid}=fim;";
		value           $internalField;                

            }
;

But I am getting the following error:

  
--> FOAM FATAL ERROR: 
 Parser Error for driver PatchValueExpressionDriver at "1.8-10" :"field fim not existing or of wrong type"
"mapped(fim)"
;

It seems that is not recognizing the solid region.

The incomplete swak4foam reference: if the current patch is a mappedpatch and the external expression is evaluated on the “partner patch”. In this case the non-uniform result will be mapped to thelocal patch.

Do u have some hints or tutorial that i can read to solve that problem?