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Topological informations

Number of neighbors
The number of regions which has an adjacent outline with the selected region.
Adjacent to an infinite face
"yes" if the region has an infinite face as neighbour.
Number of included connected components
The number of included connected components in the region. A included connected component is constituted by one or more regions which are included in the selected region. This included regions are grouped to form a connected component of which all the outline is adjacent to the selected region.
Number of holes
The number of regions which are included into the selected region. that means all the outline of the region is within the selected region.


Brun Luc 2005-11-13