use tolerance in GetElementOfPoint when using a search tree
use tolerance in GetElementOfPoint when using a search tree

live-clones/netgen,looooo/netgen,looooo/netgen,looooo/netgen,live-clones/netgen,live-clones/netgen,looooo/netgen,live-clones/netgen,live-clones/netgen,looooo/netgen,looooo/netgen,live-clones/netgen