New to LBM and OpenLB? Attend our upcoming one-week hands-on Spring School in Marseille/France from 19.05.2025 – 23.05.2025. OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › define 2d geometry from binary file › Reply To: define 2d geometry from binary file February 3, 2021 at 7:05 pm #5470 mathiasKeymaster You are right, I meant the vtiReader!