Evaluate Vector Field

Functionality

This node calculates the values of the provided Vector Field at the given points. More precisely, given the field VF (which is a function from vectors to vectors), and point X, it calculates the vector VF(X).

Inputs

This node has the following inputs:

• Field. The vector field to be evaluated. This input is mandatory.

• Vertices. The points at which to evaluate the field. The default value is (0, 0, 0).

Parameters

• Output NumPy. Outputs NumPy arrays in stead of regular python lists. Improves performance

  

  • Text-> Stethoscope

Outputs

This node has the following output:

• Vectors. The vectors calculated at the provided points.

Performance Notes

This node works faster when the vertices list are NumPy Arrays

Examples of usage

Example of description:

• Generator-> Line

• Generator-> NGon

• Generator-> IcoSphere

• Fields-> Attractor Field

• Fields-> Vector Field Math

• Fields-> Vector Field Lines

• Number-> A Number

• Vector-> Vector Polar Input

• SUB: Vector-> Vector Math

• Matrix-> Matrix In

• Matrix-> Matrix Apply to Mesh

• Viz-> Viewer Draw

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Replace each point of straight line segment with the result of noise vector field evaluation at that point:

• Generator-> Segment

• Fields-> Noise Vector Field

• Viz-> Viewer Draw

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Visualize vector field vectors by connecting original points of the line segment and the points obtained by moving the original points by the results of vector field evaluation:

• Generator-> Segment

• Fields-> Noise Vector Field

• Transform-> Move

• Modifiers->Modifier Make-> UV Connection

• Viz-> Viewer Draw