I’m having a tough time understanding how cell size works in Pylith. I currently have a Trelis journal creating a uniform 2-D grid with cell length of 0.001 (Trelis units). In Pylith, I have spatialdb files (with linear search query) specifying certain varations in fault properties over the length of the fault. However, I am currently getting the “Could not find parameters for physical properties at (…)” error. I’m understanding this to mean that I am not specifying fault properties over the entire fault. I am getting various results as I change parameters like the cell size in Trelis, the non-dimensionalizing length in Pylith, or the “to-meters” parameter in the spatialdb files, all without getting an idea for how Pylith determins the length of my unit cell in Trelis. I’d greatly appreciate a detailed explanation for this as it would help me create grids in Trelis more systematically as opposed to my current trial-and-error method, especially since I cannot find an explanation for this in the manual.