I'm wanting to find the area of intersection or overlap between two, 2-D fields
with scattered positions. I can get this result in a roundabout way by using
two instances of Map. Map will give as a bi-product a set of invalid positions
which can be used to mask out areas of non-intersection on
Ever try the Message module ? It sounds to me like this would do what you want.
--- Forwarded mail from opendx2-users@lists.berlios.de
Date: Fri, 5 Nov 2004 17:30:04 +0100 (CET)
Subject: [opendx-users] Printing informations on a Control Panel
From: Emmanuelle Lafont [EMAIL PROTECTED]
To:
Use the following equation in Compute:
a==-999||a==999||a==?byte(1):byte(0)
Then pipe the result into the `srcfield' port of Replace, with your original
data piped into the `dstfield' port. Set 'srcname' to data and 'dstname' to
invalid positions.
On Jun 25, 10:12am, Fred
I think that Inquire('apply transform') will change the positions numerically
rather than just on the screen. That's my memory, anyway. Maybe someone else
can confirm.
On Jun 25, 10:55am, Fred Ramsing wrote:
Subject: [opendx-users] lost on transformation matrix
Hi all,
I tried using the
It seems you are doing two selection processes when only one is necessary. If
you take out the SelectorList, all the field names should appear in the control
panel of Selector.
On Sep 23, 5:57pm, Stéphane Glockner wrote:
Subject: [opendx-users] automatic selector
Hello,
Second question of the
positions) into the field that aren't necessarily derived with reference to
the invalid connections. Weird things happen then.
I could list several other wierdnesses to look out for, if anyone's interested.
On Wednesday, Jul 2, 2003, at 14:25 America/New_York, Sharon Gibson
wrote
Chris is right about messing with invalids being a tricky process. He gave me
quite useful help long ago. But even now after years of tinkering, I still
stumble across surprising results, things I didn't know, and cases that break
my algorithm (i.e. it was proven to work only most of the time).
Yes, gather them up using Collect and then send to Arrange. There should be a
dxsamples program showing this, I think.
I wonder if is it possible to gather the images from these several
windows into just one?.
best regards,
.--.
Luis M. de la Cruz S.
There was some discussion about this in Nov. '99. These postings might be
helpful:
http://opendx.npaci.edu/mail/opendx-users/1999.11/msg00091.html
http://opendx.npaci.edu/mail/opendx-users/1999.11/msg00093.html
Is it a histogram that you want ? There is a macro for that...
-Sharon
. They should work just fine on the output of
Band.
Donna L. Gresh, Ph.D.
Visual Analysis Group
IBM T.J. Watson Research Center
(914) 784-5049
http://www.research.ibm.com/people/g/donnagresh
[EMAIL PROTECTED]
Sharon Gibson
[EMAIL PROTECTED
Is anyone aware of problems or features of the Band module ?
I began experimenting with the Band module because I thought that it might
offer a convenient way to scale float data into discrete byte values for the
purposes of utilizing delayed colors. It did work nicely for that, but I see
that it
Sometimes it is extremely difficult to put two variably acquired images into
the same measurement space so that they can be differenced. Because of two
microscopes, it sounds here like you might need to have quite a bit of optical
knowledge and information.
You don't say what you are looking for
Hi all (of those not vacationing this lovely friday),
What's the connection between delayed colors and use of Camera ? In the
reference manual it is said that to utilize delayed colors, one needs to use
Display (no camera) rather than Image. Is this correct ?
The delayed colors (Color,
([a.x, a.y])
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Sharon Gibson [EMAIL PROTECTED]@opendx.watson.ibm.com on 10/23/2001
03:19:53 PM
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on top of the rest of the plot,
that line will have the added benefit of being visible, too ? :-)
Sharon Gibson [EMAIL PROTECTED]@opendx.watson.ibm.com on 10/24/2001
03:03:09 PM
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Just for the record, I found a macro MakeLine in the dx/samples/macros
directory which will create the line that I need. There is a sample net
PlotLine2.net which shows the use of the macro.
Thanks to whoever wrote this macro.
Sharon
Greg, your attachment does not appear to have gone through. I've heard some
discussion about whether or not attachments actually can be distributed to the
group, but never caught any conclusion. Should it have been posted with your
message? Maybe it's just my e-mail that doesn't do its job.
I'm looking for a good way to represent frequency of occurence in an x vs. y
cluster plot.
I've developed an array based solution to this kind of thing using other
packages, but I have no clue how to start in dx, since I now have fields rather
than arrays.
Can anyone give me a directive ? I
the Histogram module does?
Greg
Sharon Gibson [EMAIL PROTECTED]@opendx.watson.ibm.com on 10/12/2001
01:37:50 PM
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Subject: [opendx-users] cluster plot
I'm looking for a good
I'd like to try this suggestion, but can't quite figure out how to set up the
JavaDX environment. As directed within the URL mentioned below, I go under
Edit...Java...Add Tools..but I get an error message the definition of
Macro WebOptions is missing.
Do I have to get my SA to install
Is there a way to force the Image module to not redisplay an image if nothing
has changed since the last execution ? I am caching all my results, so it seems
to me that if I execute my net twice, the second instance will complete
instantaneously. This appears to be true if I don't display any
On Jul 23, 7:55am, Chris Pelkie wrote:
Subject: Re: [opendx-users] problems with invalid positions
Dear All,
I've got a rather strange problem with invalid positions, in that they
still get displayed. My network is as follows:
I have a field, IH, with invalid positions (this is displayed
The short answer is to first scale each data set to a range of 0-1 (there's
reasons you may want to scale to a different range, or use weighting, but we'll
save that description for the long answer). Assuming each data set has same
positions, then Compute [R,G,B], where R is the data set to
I take it you aren't using Glyph per se, but you've manufactured an
object that's imported and realized by simply rendering it, right?
I'd bypass Glyph since you can't get its internal scale value (an
addition someone should add someday).
Right.
So if I were scaling up the Sphere, I could
I'm working with a transformed map object (NPoleOrtho), so the coordinates
aren't in degrees. I am able to feed to Camera the range of these coordinates
whatever they are (I didn't really realize this when I posted this question),
and get a fairly reasonable view.
The real problem I'm having in
Thanks for this response. Your method is slick, but is it necessary ? I'm
thinking that this would do the same as I'm doing by saving the original
positions under a new component name, and then grabbing that component from the
pick. ??
But there is something that is being overlooked in all my
I typically Construct a field from bits and pieces returned by Pick.
Select 'closest vertex' and send it to Construct origin; in parallel,
Select 'old positions' and send it to (the same) Construct data. You
should have a field with one position and one vector data item
attached to it
How do you get original positions back out after picking from a transformed
object and extracting the closest vertex ?
I've tried saving the original object positions under some other component
name, and I am able extract these positions from the pick point, but not from
the closest vertex (the
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