OperatorField(basis, evaluationmodes)

Finite Element operator input or output, with a basis and evaluation mode

Arguments:

• basis::AbstractBasis: finite element basis for the field
• evaluationmodes::AbstractArray{EvaluationMode: array of basis evaluation modes; note: quadrature weights must be listed in a separate operator field

Optional Agrument:

• name::String: name of operator field

Returns:

• finite element operator field object

Example:

# basis
basis = TensorH1LagrangeBasis(4, 3, 2, 1);

# quadrature weights field, input only
weightsfield =
    OperatorField(basis, [EvaluationMode.quadratureweights], "quadrature weights");

# verify
println(weightsfield)

# input or output field
inputfield = OperatorField(
    basis,
    [EvaluationMode.interpolation, EvaluationMode.gradient],
    "gradient of weak form input",
);

# verify
println(inputfield)

# output

operator field:
  name:
    quadrature weights 
  tensor product basis:
    numbernodes1d: 4
    numberquadraturepoints1d: 3
    numbercomponents: 2
    dimension: 1
  evaluation mode:
    quadratureweights
operator field:
  name:
    gradient of weak form input
  tensor product basis:
    numbernodes1d: 4
    numberquadraturepoints1d: 3
    numbercomponents: 2
    dimension: 1
  evaluation modes:
    interpolation
    gradient