Hi! Thank you for your answer! Currently, I’ve programmed the parser for the Karel code files and stored the points in a list of doubles. The linear movements are stored in a new object that contains the destination point, the speed of the movement, and the precision for the trajectory. I also have a vtkUnstructuredGrid of the mesh, which I’m trying to activate its cells. The missing part is the simulation to perform the movements. I’ve also mapped the instants when the points of the trajectory (vtkLine) are being activated (the instant when the trajectory “grows” to that point). All this is programmed in 3D and C#.