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Re: VECTOR_FIELD trouble [message #49843]

Wed, 23 August 2006 07:26

Jo Klein
Messages: 54
Registered: January 2006

Member

Thanks for your insights. I've been able to narrow down the problem with
your code, first problem was that I hadn't set up my plot window
correctly (d'uh). Then I realised that PLOTS will connect all of the
data points, which is not what I need. Of course, I can use a loop to
draw my vectors:
for i=0,10000 do plots,outvert[*,2*i:2*i+1]
but that is quite inefficient. I was playing with IVector a bit, which
does a good job at displaying my vectors, and can draw line segments
when I set the head length to 0.
The direct graphics equivalent, VELOVECT, is painfully slow though, and
judging from the source code, uses the same loop approach that I've tried.
I wonder if there's a more intelligent way to plot my line segments,
i.e. avoiding the loop? Alternating between plotting and not plotting
line segments in some way?
Thanks everyone,
Jo

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		Re: VECTOR_FIELD trouble By: Jo Klein on Wed, 23 August 2006 07:26
		Re: VECTOR_FIELD trouble By: James Kuyper on Tue, 22 August 2006 10:28

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