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 3D Ternary Colormap Surface Smoothing		  New Topic  Reply to Topic
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tommiles

Germany
4 Posts
Posted - 01/21/2019 :  07:57:06 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Hello,

I am trying to smooth out the surface of a 3D Ternary Graph. The graph right now looks very choppy because there are only lines drawn between the given points. Basically I am trying to "Smooth the 3D surface plot" as given in this example (https://www.originlab.com/doc/Tutorials/3D-Plotting-Basic) but on a worksheet with XYZZ (X Y Z Zh).

Kind regards,
Tom

Origin Ver. and Service Release (Select Help-->About Origin): OriginPro 2018b (64-bit)
Operating System: Windows 10

YimingChen

1607 Posts
Posted - 01/21/2019 :  10:03:52 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

You can double click on the graph to open Plot Details dialog, switch to Contouring Info tab, then turn on Smoothing. Thanks.

James
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tommiles

Germany
4 Posts
Posted - 01/22/2019 :  03:32:25 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thanks for the reply,

however this method is not working quite as imagined. In the case of Smoothing with Total points increase factor 100 and Smoothing Parameter 0.05 the graph is portrayed through different points as even setting points beyond the Axis lines. I have tried different values for the parameters such as 1, 0.05 and 50, 0.02.

Is there a way not to resize the graph completely and instead stay approximately at the given points. In the example above a matrix is calculated from the given data. Is there anything similar possible for this graph?

Tom
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YimingChen

1607 Posts
Posted - 01/23/2019 :  5:31:17 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

The smooth setting in Contouring info tab is using the TPS algorithm:
https://www.originlab.com/doc/Origin-Help/GridMethod-RandomSpaced#Thin_Plate_Spline_.28TPS.29
The result largely related to the flatness of your data. This smoothing method is not suitable for very noisy data. You can send your graph to <tech@originlab.com> for us to check further.

James
Edited by - YimingChen on 01/23/2019 5:31:53 PM
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tommiles

Germany
4 Posts
Posted - 01/25/2019 :  05:30:56 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

is there a way to use other methods such as Renka Cline from Gridding Method and Parameters given here (https://www.originlab.com/doc/Origin-Help/XYZGridding-Dialog#Gridding_Method_and_Parameters) on the 3D Ternary Graph?

Tom
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YimingChen

1607 Posts
Posted - 01/28/2019 :  10:07:53 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Those smoothing methods are not available for 3D ternary surface plot.

James
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