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 Line appearing when using "Fill Area Under Curve"

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T O P I C    R E V I E W
alliceinw0 Posted - 03/18/2025 : 1:55:35 PM
Origin Ver. and Service Release (Select Help-->About Origin):
Operating System:

Hello, I am trying to use the command "Fill Area Under Curve" to color the space between two lines, as shown in the attached image. When I am processing the plot in OriginPro it looks fine, however when I export it as pdf, there is subtle horizontal line. How can I stop this from happening?

Thank you in advance!
2   L A T E S T    R E P L I E S    (Newest First)
alliceinw0 Posted - 03/18/2025 : 4:14:01 PM
Hello, many thanks, your suggestion worked perfectly!
NicholasSupport Posted - 03/18/2025 : 3:22:12 PM
Hello,

Note: This requires Origin 2023b or later

This is a known issue commonly fixed by changing System Variable @PFNC equal to 1.
To do this, go to menu Preferences > System Variables. In this dialog, go to the last row and enter PNFC in Variable column and 1 in Value column. Click OK and restart Origin.

https://www.originlab.com/doc/Quick-Help/System-Variables

Then, re-export your graph to PDF. This PDF should be fixed.

Let me know if that solves your case!

Best,

Nicholas G.
nicholas@originlab.com
OriginLab Technical Support Team

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