Good afternoon one and all,

i have a points file with 16 million points. I would like to rip out half of
them which have a null value of -9999. I have successfully opened the file
in Access and Mapinfo but when i choose to remove the points in Mapinfo by
doing a select on the null value it decides to "not respond". Do i have any
other options ??

regards

Chris Loty
Wind Business Project Officer
Sustainable Energy Development Authority
(w) 9249 6192   (f) 9299 1519 
http://www.seda.nsw.gov.au

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