No. Try ProbeList instead.
At 02:06 PM 06/30/04 +0100, you wrote:
Hello.
I'm new in Opendx.
I'm using the Pick function to define the starting point of streamlines.
Is there a simple way to accumulate the Pick positions so the image
shows all the streamlines, not only the last one.
Thanks
You want to look at using Get, Set, and the List modules. Look for
examples with these.
David
Hello.
I'm new in Opendx.
I'm using the Pick function to define the starting point of streamlines.
Is there a simple way to accumulate the Pick positions so the image
shows all the streamlines, not
Thanks
I'll try that.
On Qua, 2004-06-30 at 15:19, Chris Pelkie wrote:
No. Try ProbeList instead.
At 02:06 PM 06/30/04 +0100, you wrote:
Hello.
I'm new in Opendx.
I'm using the Pick function to define the starting point of streamlines.
Is there a simple way to accumulate the Pick
The problem arise when trying to plot Streamlines on this mesh. The
problem:
streamlines are troncated.
I check the same kind of dx network on a curvilinear mesh in one
part, and
there are no problems.
May be i didn't use the correct approach to define such grids.
Instead of
multigrid
a = Select(importedfield,0) //selects one of the fields (either will work)
b = Extract(a,positions)
_
Donna L. Gresh, Ph.D.
Visual Analysis Group
IBM T.J. Watson Research Center
(914) 784-5049
[EMAIL PROTECTED]
At 06:00 PM 4/6/01 -0400, you wrote:
you should just be able to do it directly; a velocity field
is exactly what you have. As I said, you may need to
Extract the positions component to pass to Start, but
I don't think so.
What would be the best way to extract the positions? I'm pretty certain
Right after the Import, throw in an Extract module and set the
'which' parameter to positions. Then feed that into your 'start'
param.
David
At 06:00 PM 4/6/01 -0400, you wrote:
you should just be able to do it directly; a velocity field
is exactly what you have. As I said, you may need to
Can DX render streamlines from 2-D velocity data?
I am passing the velocity data through the sequence:
{velocity} - STREAMLINE - AUTOCOLOR - IMAGE
But I get a very strange rendering that looks nothing like the
glyphs of the velocity field.
Also tried:
{velocity} - STREAMLINE - AUTOCOLOR -
Thanks for your reply ...
I know that streamlines should not look exactly like the glyphs per se,
but what I meant was that the shape of the streamlines does not seem to
correspond to the computed velocity field, and since the velocity field
looks good, I conclude that I am screwing up the DX
The grid should be part of your velocity data. How are your velocity
vectors mapped in space? If you don't have them on a grid, this isn't
going to work.
If you need to specify your start position, in the Streamline cdb,
enter [x y] for the start input with x and y as your start position.
PROTECTED]
To: opendx2-users@lists.berlios.de
cc: Chris Pelkie [EMAIL PROTECTED]
Subject: Re: [opendx-users] Streamlines
Thanks for your reply ...
I know that streamlines should not look exactly like the glyphs per se, but
what I meant was that the shape of the streamlines does not seem
At 09:05 AM 4/6/01 -0600, you wrote:
The grid should be part of your velocity data. How are your velocity
vectors mapped in space? If you don't have them on a grid, this isn't
going to work.
If you need to specify your start position, in the Streamline cdb,
enter [x y] for the start input
you should just be able to do it directly; a velocity field
is exactly what you have. As I said, you may need to
Extract the positions component to pass to Start, but
I don't think so.
_
Donna L. Gresh, Ph.D.
Visual Analysis Group
IBM T.J. Watson Research Center
Can DX render streamlines from 2-D velocity data?
I am passing the velocity data through the sequence:
{velocity} - STREAMLINE - AUTOCOLOR - IMAGE
But I get a very strange rendering that looks nothing like the glyphs of
the velocity field.
Also tried:
{velocity} - STREAMLINE - AUTOCOLOR -
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