We are currently able to automatically detect the value shape of an Expression defined like this:
f = Expression(("x[0]", "sin(x[1])"))
But not if it is defined like this:
class MyExpression(Expression):
def eval(self, values, x):
values[0] = x[0]
values[1] = sin(x[1])
How should the value shape be specified for a subclass of an
expression?
We had value_rank, value_dim before. We might either require
def value_shape(self):
return (2,)
or sending value shape to the constructor:
f = MyExpression(shape=(2,))
Or there might be some other trick we can do.
--
Anders
signature.asc
Description: Digital signature
_______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : [email protected] Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
