Linear Interpolation in 3D: Grid Requirements for Accuracy

This is because linear interpolation requires a consistent and structured grid to ensure accuracy and consistency in the results. FE-Tetra and FE-Brick are types of finite element meshes that provide structured and regular grids, while IJK-ordered grids are typically used in structured grid models such as grid-based numerical models for fluid dynamics. Using other types of grids or unstructured meshes may lead to inaccurate or inconsistent results in linear interpolation.