internal PMFaceVertex GetFaceVertexFromCommon( PMVertex commonVert )
{
if ( vertex[ 0 ].commonVertex == commonVert )
return vertex[ 0 ];
if ( vertex[ 1 ].commonVertex == commonVert )
return vertex[ 1 ];
if ( vertex[ 2 ].commonVertex == commonVert )
return vertex[ 2 ];
return null;
}
internal void NotifyRemoved()