The FemPostPipeline class. Read in vtk file scale the points of a loaded vtk file Load a single result object or create a multiframe result by loading multiple result frames. If multistep is wanted, 4 argumenhts are needed: 1. List of result object each being one frame, 2. List of values valid for each frame (e.g. [s] if time data), 3. the unit of the value, 4. the Description of the frames Recomputes all children of the pipeline Get the last post-processing object Check if this pipeline holds a given post-processing object