rotation variable

A rotation variable is a visual variable that defines the rotation of a based on a numeric data value returned from a field or expression. This value is typically used to rotate symbols that indicate directionality such as:

  • wind direction
  • traffic flow
  • aspect

Rotation visual variables differ from other visual variables in that they only require a data value without requiring stops. Rotation visual variables require the following:

  1. A reference to a data value either from a field name, or an expression.
  2. An optional rotation type, indicating a geometric or arithmetic rotation.

Also known as

  • Rotation visual variable

Related terms

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