Rotation Field

Functionality

This node generates a Vector Field which is calculated as force rotating points around some axis. Several physics-like falloff laws are supported. Falloffs similar to standard proportional editing mode are supported too (they are marked with (P) in the name).

Inputs

This node has the following inputs:

• Location. Point on the rotating axis

  

  It is possible to provide several location points. The default value is (0, 0, 0) (origin).

  

• Direction. Direction of the rotation axis. The default value is (0, 0, 1) (Z axis).

• Amplitude. The attracting force amplitude. The default value is 0.5.

  

• Coefficient. The coefficient used in the attracting force falloff calculation formula. The exact meaning of this input depends on fallof type:

  • If Falloff type is set to Inverse exponent or Gauss, then this is the coefficient K in the corresponding formula: exp(-K*R) or exp(-K*x^2/2).

    

  • If Falloff type is set to one of proportional editing modes (one starting with (P) prefix), this is the radius of proportional editing falloff.

    

  • For other falloff types, this input is not available.

  The default value is 0.5.

Parameters

This node has the following parameters:

• Join mode. This determines how the distance is calculated when multiple attraction centers are provided. The available values are:

  • Average. Calculate the average of the attracting forces towards the provided centers. This mode is used in physics. This option is the default one.

  • Nearest. Use only the force of the attraction towards the nearest attraction center.

  • Separate. Generate a separate field of attraction force for each attraction center.

  This parameter is not available when the Attractor type is set to Mesh - Faces.

• Clamp. If checked, then the amplitude of attracting force vector will be restricted with the distance to attractor object. Unchecked by default.

Outputs

• VField. Vector field of the rotating force.

Examples of usage

• Generator-> Line

• Generator-> Segment

• Generator-> Plane

• Fields-> Apply Vector Field

• Fields-> Evaluate Vector Field

• Number-> A Number

• MUL X,Y: Number-> Scalar Math

• LEN: Vector-> Vector Math

• Vector-> Vector In

• Matrix-> Matrix In

• Viz-> Viewer Draw

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• Generator-> Plane

• Fields-> Apply Vector Field

• Viz-> Viewer Draw