An opacity variable defines the opacity of a symbol
Opacity visual variables require the following:
- A reference to a data value either from a field name or an Arcade
Arcade is a lightweight and secure expression language used in ArcGIS products and APIs. Arcade expressions are commonly used to calculate or format field values for data-driven visualizations, labels, and popups. The expressions work against data stored in data services. expression. - At least two opacity stops that match data values to opacity values between
0and1. The opacity of symbols with data values between the designated stops are interpolated linearly.
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Also known as
- Opacity visual variable
Related terms
- Color variable
A color variable is a visual variable that defines the color of a symbol based on a numeric data value returned from a field or expression. If an expression is used, the color can be defined from a color ramp with a set of pre-defined color ranges. - Rotation variable
A rotation variable is a visual variable that defines the rotation of a symbol based on a numeric data value returned from a field or expression. This value is typically used to rotate symbols that indicate directionality. - Size variable
A size variable is a visual variable that defines the size of a symbol based on a numeric data value returned from a field or expression.