Not entirely clear what you got the first time, but you need Glyph or
AutoGlyph, before or after Color, to get the vector display. Throw away
Include for the time being: I bet you don't know what it does (I'll tell
you below).

You should see 300 vector arrows in space, not visibly connected to each
other. Each glyph is a little representation of vector direction and
magnitude, colored by the magnitude of the vector (Color module cleverly
calculates mag(vector) for you).

Now if you want to Include a range of vector magnitudes (about all you can
do with this data set), you need to explicitly calculate mag(vector) by
inserting a Compute module with that expression. I would put this at the
end, just before Image, so the result is that you have already created a
set of colored glyphs, each of which still knows its original 2-vector
value, then you Compute(mag(vector)) and feed this to Include, then set a
min and max (magnitude) in Include. This will pass the chosen subrange of
glyphs to be Imaged.

Chris Pelkie
Vice President/Scientific Visualization Producer
Conceptual Reality Presentations, Inc.
30 West Meadow Drive
Ithaca, NY 14850
[EMAIL PROTECTED]

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