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 Extract contour lines z value formatted poorly?
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jdf726

78 Posts

Posted - 01/21/2019 :  3:34:45 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. and Service Release (Select Help-->About Origin): 2018 Pro 64 bit
Operating System: Win 7

My contour map data is a small current (pA). I want to extract contour lines to superimpose on another plot.
You can hit 'extract to contour lines' and you get a bunch of x,y column pairs, but because the Z value is so small the chosen formatting used on the z-axis header label gives 0.00000 for all of the columns.

I just checked and if I normalise the data to pA (*1e-12) the z-axis comes out properly.
I guess this is the result of a string formatting routine that assumes that the data is close to ~1.

Actually, I was wondering if there was some way of adding all of the X/Y pairs quickly to a plot without having to select them individually and hit 'add'. They have incrementally designated (X1,Y1) (X2,Y2) status, so if I select the whole workbook I can hit 'line' plot and they all get plotted in a new plot, but adding them to an existing axis is a bit trickier (I guess can make a new plot as above and add the contours to that).

Castiel

343 Posts

Posted - 01/21/2019 :  4:56:36 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
quote:
Originally posted by jdf726

Origin Ver. and Service Release (Select Help-->About Origin): 2018 Pro 64 bit
Operating System: Win 7

My contour map data is a small current (pA). I want to extract contour lines to superimpose on another plot.
You can hit 'extract to contour lines' and you get a bunch of x,y column pairs, but because the Z value is so small the chosen formatting used on the z-axis header label gives 0.00000 for all of the columns.

I just checked and if I normalise the data to pA (*1e-12) the z-axis comes out properly.
I guess this is the result of a string formatting routine that assumes that the data is close to ~1.

Actually, I was wondering if there was some way of adding all of the X/Y pairs quickly to a plot without having to select them individually and hit 'add'. They have incrementally designated (X1,Y1) (X2,Y2) status, so if I select the whole workbook I can hit 'line' plot and they all get plotted in a new plot, but adding them to an existing axis is a bit trickier (I guess can make a new plot as above and add the contours to that).



You may have a try of OriginC.

https://www.originlab.com/doc/OriginC/ref/DataPlot-ExtractContourData


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