Convert a Cloud of points to surface in IGES format (Reverce engineering)

Hi,
I have aquired some 3 dimentional points into an excel spread sheet. I need to create a surface in IGES format using these points. Is there a ready made Vi that can do this?
Thanks,
Regards,
Shapoor

See this thread for a way to create the surface inside labview using mathscript.
http://forums.ni.com/ni/board/message?board.id=170&thread.id=356342&view=by_date_ascending&page=5
I have no idea how to group the surface output arrays (3 or 4 points per surface) or the IGES format.

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this is because i will be dealing with a verylarge
number of points so efficiency here is definitelya
crucial issue...what do you think josiah ?Well, I've used that little algorithm for a global
map with, say, 1e6 known points
and the response was always almost intantaneous. It
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kind regards,
Jos
Well, I've used that little algorithm for a global
map with, say, 1e6 known points
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depends on the distribution
of your known points, i.e. you can easily draw
pathetic situations on a piece of
paper but on average the nearest point is found
withing a few searches (after
finding those two lines using an O(log(n)) binary
search ...
What you say is very encouraging so i will try your little algorithm for sure.
any way At this first stage of my application i'm not demanding some extra ordinary work to be acheived , and this one would be surely very sufficient..
Two dimensional locality doesn't help you much when
you're using quad-trees;
as has been said before in this thread: two nearest
points may be miles apart
in the tree.
you right !
What does help (altough not much) is, after sorting
the points on increasing Y
values, do a minor sort using Gray-codes on the X
coordinate. But that's for a
later discussion ;-)
something interesting i'll be patiently waiting for ;)
kind regards,
JosMany thanks ,

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Convert a Cloud of points to surface in IGES format (Reverce engineering)

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