The Boundary controls allow you to mask the edges of the XYZ contour plot. There are three choices:
Data Boundary
The raw data boundary. It also can be affected by Smoothing parameters.
Layer Boundary
The layer frame determined by Origin extrapolation.
Note:
When layer boundary is selected, the space between data and boundary is filled by extrapolation. In this case the Smoothing Parameter must be set.
The maximum number of data points for tri-contour smoothing is controlled by system variable @TCS. Its default value is 4000, beyond which no smoothing will be done. So if the number of points in the contour is greater than 4000, layer boundary is not recommended.
Custom Boundary
Customize a new boundary by setting Boundary X Data, Boundary Y Data (and Boundary Z Data).
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