# 5.2. Create Model¶

Here, the code blk3cellOct.exe and the input file blk3cellOct.inp (see format) are used to create a conductivity model on the OcTree mesh. For this example, we use the mesh that was created in the example “create OcTree mesh”. Files relevant to this part of the example are in the sub-folder octree_model. Before running this example, you may want to do the following:

Here is the input file for blk3cellOct.exe

The resulting Octree model shows a more conductive block ($$\sigma$$ = 0.01 S/m) within a more resistive background ($$\sigma_b$$ = 0.0001 S/m). A constant topography of 0 m in elevation is shown in gray.