🚀 go-pugleaf

In article <1992Oct29.151010.7244@Princeton.EDU>, bdavis@phoenix.Princeton.EDU (William Davis) writes:
|> From: bdavis@phoenix.Princeton.EDU (William Davis)
|> Newsgroups: comp.graphics.explorer
|> Subject: Isosurfaces of data points scattered in space?
|> Date: Thu, 29 Oct 92 07:10:10 PDT
|> Organization: Princeton University
|> Lines: 36
|> Originator: news@nimaster
|> Nntp-Posting-Host: phoenix.princeton.edu
|> 
|> I have a file with data points scattered in 3-D space (ground water
|> polution values from wells).
|> 
|> For example:
|> 
|> 7
|>       X            Y            Z            F
|>    9.0000       49.750       57.000       95.000
|>    8.0000       49.000       56.500       2500.0
|>    6.5000       54.250       62.250       5.0000
|>    10.000       47.500       42.000       290.00
|>    9.7500       47.500       54.500       1400.0
|>    9.0000       48.750       32.500       4.0000
|>    9.2500       49.000       53.500       170.00
|> 
|> (My case actually has 71 points)  I was able to use a routine
|> (ReadXYZData, downloaded from swedishchef.lerc.nasa.gov) to convert
|> this file to a 1-D  curvilinear lattice.  I want to make isosurfaces,
|> etc. Is there a way to do this?  I can use LatToGeom and Render to see
|> the points floating in space, or connected with lines.
|> 

Try ReadXYZData -> Triangulate3D -> IsosurfacePyr -> Render

Triangulate3D is on the ftp site and will generate a pyramid of tetras 
using a 3D voronoi method. 

|> I tried to use "Interpolate", with the "Interpolation Pts" lattice
|> from GenLat.  Even though I scaled my input data coordinates to fall
|> between 0 and 63, and selected a "Coord Range" in GenLat to vary
|> between 0 and 32, "Interpolate" tells me all the points are outside
|> the range.
|> 
|> Thanks in advance.
|> 
|> ---------------------------------------------------------------------
|> Bill Davis                  | INTERnet:  bdavis@pppl.gov
|> PPPL; P.O. Box 451          | BITnet:    bdavis%pppl.gov@cunyvm
|> Princeton University        | else,      bdavis@phoenix.princeton.edu
|> Princeton, NJ 08543         | Phone: (609)-243-2546     FTS: 340-2546
|> ---------------------------------------------------------------------
|>  

-- 

Gary Griffin			I just hope I'm still dreamin'
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