OutputTools< Real >::VariableGradient VariableGradient
const InputParameters & parameters() const
Get the parameters of the object.
Extract a component from the gradient of a variable.
static InputParameters validParams()
int _component
Desired component.
const VariableGradient & _gradient
Reference to the gradient of the coupled variable.
virtual Real computeValue() override
Compute and return the value of the aux variable.