What are Interpolation options for creating a Field from a Point Map

Objective:

Learn about different interpolation options of the Field from Point Map block.

Procedure:

The Field from the Point Map block is used to create a Scalar, Vector, or Temperature Field using a Point Map that can be imported or created in nTop.

Interpolation:

    • Nearest: Values maintain the exact value of the nearest point.
    • Barycentric: Values are interpolated linearly from the three closest points, which define a tetrahedral. This method is recommended for point maps extracted from tetrahedral mesh, like Von Mises Stress Point Map or Temperature Point Map.

nearest.png

Note: All fields created will be extrapolated based on the Interpolation option. If you wish not to extrapolate, set the value 0 to everything outside the domain. You can do it with a combination of If-Else block and Less Than or Equal to block. If you have vertices instead of an Implicit Body, you can use the Delaunay Volume Mesh block to create a convex hull and use its implicit property.

extrapolation_none.png

Example File:

Example file

More on this topic:

Keywords:

 import simulation field map point fields interpolation extrapolation linear random points interpolate extrapolate nearest barycentric natural 
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