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 Line appearing when using "Fill Area Under Curve"
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alliceinw0

8 Posts

Posted - 03/18/2025 :  1:55:35 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
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!

NicholasSupport

USA
82 Posts

Posted - 03/18/2025 :  3:22:12 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
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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alliceinw0

8 Posts

Posted - 03/18/2025 :  4:14:01 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hello, many thanks, your suggestion worked perfectly!
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