After the pore identification step (defined by the parameters under Initialization, Pore-Fragment Reconnection and Domain-Boundary Options), the shape of the pores is analyzed. This analysis is done by fitting ellipsoids into the identified pores.

The following figure shows the results of Pore-Shape Analysis on a porous structure. These visualizations are loaded from the Results Viewer of the *.gdr result file (under the Pore Visualization tab).

On the left, the structure is shown after pores are identified, and the pore fragments are removed at the domain boundary. The middle image shows the shapes of ellipsoids fitted to the pores. The right image shows a comparison between the identified pores (red) and the ellipsoid shapes fitted to them (gray). The matching voxels are shown in blue. This visualization provides a validation of the fitting to the ellipsoid shapes. A fitting is very good when a high percentage of overlap is observed, meaning that the fitted ellipsoids overlay the pores with high accuracy.