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 plot like Labview intensity graph		  New Topic  Reply to Topic
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TitoK

Austria
6 Posts
Posted - 03/22/2015 :  10:04:13 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Hello,

I use Labview to measure the element distribution in certain points of surfaces. The measurement points form a rectangular grid - in Labview I get a 2D array with the amount of counts from every measured point. To visualize the data I use an intensity graph like this one:

http://cnx.org/resources/a8c66588021d0ead46885150c19c8340/intensitygraphexfp2.png

Now I'd like to create a similar plot from the same data using Origin. I already know how to import data from Labview to a worksheet. What I'm struggling with is, how to create the plot, respectively which one I should choose.

I found a video tutorial:

https://www.youtube.com/watch?v=kSpGweGoXXw

So I guess using a matrix and a contour plot somehow could work, but I would need a discrete value (in the shape of a rectangle) for every point of the grid without interpolation - how can I achieve this?

SeanMao

China
288 Posts
Posted - 03/23/2015 :  04:59:57 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

What you want is a graph type called Heat Map. Since Origin 2015, you can make such graph by going to menu Plot: Contour/Heat Map: Heat Map to make one.

Below is an example to show the data structure and heat map:


See if this is what you need.

Regards!

Sean

OriginLab Tech. Service
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TitoK

Austria
6 Posts
Posted - 03/26/2015 :  04:42:40 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thanks a lot,

I think that is what I need - so far I only have access to Origin9, that's why I didn't see this option. I should get a new license with Origin 2015 soon (in case someone is curious - Heat maps are only supported since Version 2015).
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