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Once a Point Map has been created or imported, it is necessary to convert the data into a Field to then use it to modify a part.   For example, to use Von Mises Stress data to create a field, you would:
  • Add a Field from Point Map block
  • Insert a Von Mises Point Map into the Point Map input
  • Select the appropriate Interpolation options

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Interpolation

lessons/follow-along-stress-driven-mesh-refinementLooks for the closest point referenced in the point map and sets that value equal. Creates a Voronoi pattern, because it creates regions closest to a point. Below is the Field View of a Nearest Point interpolated Field.
This should be used for points in a tetrahedral mesh, like FEA results. Linearly interpolates among the three closest points. Below is the Field View of a Barycentric interpolated Field.
If the Interpolation options from the Field from Point Map block aren’t producing the desired results, you can also use the Radial Basis Field from Point Map, which creates a smooth field from a point map using radial basis interpolation.

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Extrapolation

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
Use the Field Viewer (hotkey ‘F’) to see the resulting field. Changing the Colormap option to Turbo helps with visualization. Fields can drive densities, thicknesses, and other values that affect your design.