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Customising the outer boundary of a contour plot

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Abhil@sh

India
2 Posts

Posted - 10/16/2020 : 04:59:14 AM

Hi!

I have taken velocity measurements in a hollow pipe and am trying to represent the data in an r-theta-z plot (Refer attachment). I have taken point measurements only along the 0, 90, 180, and 270-degree radial lines and have made the plot interpolate the profile for the entire circle.

The thing is, that I have taken the measurements only in the 10-centimeter diameter portion of the circle whereas the hollow pipe is 12 centimeters in diameter. I want the software to interpolate data only for the 10-centimeter diameter circle while keeping the outer boundary as 12 centimeters. Simply said, I want the outermost annulus to represent no data.

I would appreciate it if you could help me out here.

https://my.originlab.com/ftp/forum_and_kbase/Images/Plot%20with%20data%20boundary%20and%20layer%20boundary.pdf

AmandaLu

439 Posts

Posted - 10/16/2020 : 06:59:52 AM

Hi,

You can create a boundary r-theta data and set it as customized boundary in Plot Details dialog.

Thanks,
Amanda
OriginLab Technical Service

Abhil@sh

India
2 Posts

Posted - 10/16/2020 : 07:04:57 AM

Thanks, Amanda for the reply. I tried using that option but the dropdown menu shows nothing more than 'none'. I don't see any other option to edit the Boundary R data.

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