DocTestSetup = :(using Ferrite) Postprocessing Projection of quadrature point data L2Projector(::Ferrite.AbstractGrid) add!(::L2Projector, ::Ferrite.AbstractVecOrSet{Int}, ::Interpolation; kwargs...) close!(::L2Projector) L2Projector(::Interpolation, ::Ferrite.AbstractGrid; kwargs...) project Evaluation at points evaluate_at_grid_nodes PointEvalHandler evaluate_at_points PointValues PointIterator PointLocation VTK export VTKGridFile write_solution write_projection write_cell_data write_node_data Ferrite.write_cellset Ferrite.write_nodeset Ferrite.write_facetset Ferrite.write_constraints Ferrite.write_cell_colors