zone.field.get
Syntax
Get data from the model at the location specified by v. The optional argument fdef specifies which value to return if v is not inside any zone in the model. By default, fdef = 0.0.
f - the scalar data value at location v
v - the location in space to query
fdef - the return value to use if no zone is found at that location
zone.field.extra
zone.field.get.gp
9.1.13