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 Nonunifrom gridded matrix from unifrom one		  New Topic  Reply to Topic
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shirshed

USA
2 Posts
Posted - 09/23/2013 :  4:09:32 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. and Service Release (Select Help-->About Origin): 8.6
Operating System: WIN 7
I have a uniformly gridded 200X1600 (y&X axis respectively) matrix (a ccd image data) of z values. I want to convert it to a nonuniform gridded matrix where the nonuniform gridding comes from the fact of calibrating the X-axis (from pixel to raman shift for ex.). Basically I want to create a 2D surface plot with X axis is now raman shift instead of pixel number. I have the pixel to raman shift calibration file.

Sam Fang

293 Posts
Posted - 09/24/2013 :  02:51:46 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
You can use virtual matrix to plot surface. Origin's virtual matrix supports nonuniform xy. See the page:
http://www.originlab.com/doc/Origin-Help/Plot-3D-Contour-VirtMat

and the video tutorial:
http://www.originlab.com/index.aspx?go=Products/Origin/DataManagement/WorkbooksAndWorksheets&ss=chm&pid=1721

Sam
OriginLab Technical Services
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shirshed

USA
2 Posts
Posted - 09/24/2013 :  6:52:13 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thanx Sam. Its working.
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