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 Particles, macros and moments		  New Topic  Reply to Topic
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RobWL

UK
Posts
Posted - 08/19/2005 :  10:02:42 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Version : 7.5 SR2
Operating System: Win XP

These three things are playing on my mind.

Is it possible to perform particle counts on 2D images in origin? The peak count function doesn't seem to be up to this task.

Is it possible to record a macro-style instruction set so that I don't have to keep doing the same process over and over again?

Has anyone written a script for calculation of the second-order moment (i.e. integral x^2 f(x) / integral f(x)) from a graph?

Thanks.
RobWL

Mike Buess

USA
3037 Posts
Posted - 08/20/2005 :  06:10:45 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi RobWL,

It's not possible to record GUI actions but everything you can do by GUI can also be performed in LabTalk and Origin C.

...This add-on will integrate a chosen region of an image. There is probably a simple relationship between integral and particle count.
http://www.originlab.com/FileExchange/details.aspx?fid=38

Mike Buess
Origin WebRing Member

Edited by - Mike Buess on 08/20/2005 06:39:49 AM
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Hideo Fujii

USA
1582 Posts
Posted - 08/23/2005 :  3:35:23 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

Just supplimenting Mike's post...

You can set the image matrix cell values to extract paticles by doing the menu: e.g.,
  Matrix:Set Values: Cell(i,j) = cell(i,j)>500?1:0
Then, for example, you can add (or integrate) all cell values and devide by the average particle size.

--Hideo Fujii
OriginLab
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