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dnn
2005 Oct 21
2
Finding the neighbors of the point
Dear all,
I got point data of trees. I was wondering if anybody has experience in searching the neighbors within a specified distance efficiently.
X Y Z
99 34 65
98 35 29
98 34 28
99 33 33
98 32 23
99 33 21
99 33 22
99 32 24
99 30 23
...
What I want to do is : searching for the neighbors with a distance R for each tree & the neighbor must have a bigger Z.