In the Domain-Boundary Options panel, the handling of boundary pores is defined.

When Remove Pore Fragments at Domain Boundary is checked, all pores touching the domain boundary, after the initialization and the pore-fragment reconnection are done, are removed. This might improve the results, since boundary pores which do not lay completely in the domain might lead to wrong estimates for the pore shapes. The visualizations below are loaded from the Results Viewer of the *.gdr result file (under the Pore Visualization tab).

When Remove Pore Fragments at Domain Boundary is unchecked, the Periodicity options become available. By checking the X-, Y-, or Z-Direction checkboxes, the pore space is treated as periodic in the chosen direction(s) before the pore segmentation. Otherwise, when Periodicity is not chosen in a direction, the structure is assumed to end at the domain boundary.