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finding 3rd nearest neighbors in very large data [message #45919]

Thu, 20 October 2005 00:56

snfinder@naver.com
Messages: 35
Registered: August 2005

Member

Hi~!

I read the "My IDL Program Speed Improved by a Factor of 8100!!!"
(http://www.dfanning.com/code_tips/slowloops.html)
I am in the almost same situation.
Although I read that seriously, but I couldn't coding properly for my
situation.
My data is 3D data. Therefore each point has x,y and z coordinates.
The number of points is about 9 million. --;
So I had trouble to make array for allocate data.

I wanted to use function nearest_neighbors, but I couldn't find how can
expand triangulate function from 2D to 3D.

Somebody help me~! Please~!
I eagerly look forward to any comments!

bye~^^

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