OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › importing 2D geometry from binary image › Reply To: importing 2D geometry from binary image March 2, 2021 at 8:54 am #5502 mathiasKeymaster Dear John, yes, that is right. I third way is to put the binary in a vtk vti file format and you the vtiReader of OpenLB. Then, transform it intro an analytical functor and use it to set the materials. Best Mathias