I've been trying to find the easiest way to work with importing Geometry from AutoCAD ABS (Autodesk Building System). Since I'm dealing with large buildings involving many rooms, it would be best if pathfinder could extract the floor from the imported .DXF file, but this is not the case. (yet?) So, I import the .DXF into Pyrosim, create a mesh that encloses the geometry that I wish to work with, save it and export it as a .FDS file, and then import that .FDS file into Pathfinder. This works fairly well. Any 3D objects have to be exploded before importing into Pyrosim, otherwise they'll just end up on the background image, and the finer the mesh, the better the resolution from the .FDS file.
It would be nice if I didn't have to do all this for the time it takes, but also for the going through FDS to do it. Any diagonal lines or rounded objects are converted into "sawtooth" geometry, which is the way FDS works, and is a necessity for that program; but at least Pathfinder can work with diagonals, if not with rounded edges. (yet?) Also, imported geometry from a .DXF file straight into Pathfinder cannot be shown in the simulation results, whereas geometry from an .FDS file can be shown.
I understand that this is still the beta version, but I just wanted to see if these issues were going to be addressed.