🚀 go-pugleaf

In article <1993Jan11.174115.11398@julian.uwo.ca>, lferjo@gfx.engga.uwo.ca (Lisa Ferjo) writes:
|> .
|> .
|> .
|> I am using DsCurvEX module to read in my data.  I modified this module for
|> the extra data and used vectorgen in my map.  It didn't quite work.  I don't
|> know if it is because of the dscribe module or the way I think explorer
|> works with vectorgen.
|>

You might want to connect the output of your dscribe module to
PrintLat module.  This should help you to verify whether the data
is read in correctly.  Send me mail if you still have problem on
dscribe.


John P. Hwa
hwa@sgi.com

In article <1993Jan11.174115.11398@julian.uwo.ca>, lferjo@gfx.engga.uwo.ca (Lisa Ferjo) writes:
|> I would appreciate any information on the module VectorGen.  This is how I
|> think it works.
|> 
|> I have 3d volumetric data of heart cusp.  The data looks like this.
|> Resolution 20 11 3
|> x coord   ycoord   z coord  function
|> 3.0E+00   10.0E+00 4.0E+00   3.0E+00
|> .
|> .
|> .
|> When I use vectorgen in my map I get vectors at my coordinate points.  I
|> think that explorer takes the function value as the length of the vector
|> and uses an angle of 90 degrees as a default value.  This is how I think
|> it works.  
|> 
|> I am wondering how to get different angles for the vectors.  I would think
|> you would make your data look like this
|> 
|> Resolution 20 11 3
|> xcoord    ycoord   zcoord  function    vecx     vecy    vecz
|> 3.0E+00   10.0E+00 4.0E+00 10.0E+00    3.0E+00  4.0E+00 10.0E+00 
|> .
|> .
|> .
|> The function value would correspond to the different colours you wanted. 
|> VECx, VEcy, Vecz would be used to calculate the angle and the length of
|> the vector.
|> 
|> 
|> If this is the way explorer does it, how does it differentiate between the
|> function value used for the colour map and the values used to calculate
|> the vector.
|> 
-- 

VectorGen always uses Red/White vectors. It uses the three function values
to give direction. If you provide 1 function value, VectorGen assumes it is
a delta-X direction. Two values gives delta-(X,Y).

Dave

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David Foulser					foulser@sgi.com 
MS 1L-545
Silicon Graphics, Inc   			415/390-5338 
2011 N. Shoreline Blvd. 			415/390-6056 FAX
Mountain View, CA 94039-7311