another function question

papawo

lets say a feature that gives 'data' whatever the user pick
line & line = data
plane = data

how to do an export function to get 'data' usable to other fs?

konstantin_shiriazdanov

if you mean that function should evaluate some query of unknown type and do some action with it then use the sequence of try silent {} operators

function evQuery(context is Context, query is Query)
{
var result;
try silent {
result = evLine();
debug(context, result);
return result;
}
try silent {
result = evPlane();
debug(context, result);
return result;
}
//and so on
}

papawo

the whole feature does the evaluating already. and I would like to capture the result to be exported.
when trying to do a function, I ending up repeating the code of the feature.

konstantin_shiriazdanov

then simply assign desired results of feature evaluation to the variable or append to array and do debug() or print() in the end

papawo

it does println or debug.
how to do the variable or append? 

konstantin_shiriazdanov

ok, now i noticed your edited question.
there are 2 ways to make data global:
- setVariable() function creates global variable of any type (even function type) and this value can be obtained in later added features by getVariable()
- setAttributes()/getAttributes() sets and gets attributes of any type to a certain geometry, which can later be extracted by other features