step_expr: Create a step expression

In mapgl: Interactive Maps with 'Mapbox GL JS' and 'MapLibre GL JS'

Create a step expression

Description

This function generates a step expression that can be used in your styles.

Usage

step_expr(column = NULL, property = NULL, base, values, stops, na_color = NULL)

Arguments

column	The name of the column to use for the step expression. If specified, property should be NULL.
property	The name of the property to use for the step expression. If specified, column should be NULL.
base	The base value to use for the step expression.
values	A numeric vector of values at which steps occur.
stops	A vector of corresponding stops (colors, sizes, etc.) for the steps.
na_color	The color to use for missing values. Mapbox GL JS defaults to black if this is not supplied.

Value

A list representing the step expression.

Examples

step_expr(
    column = "value",
    base = "#ffffff",
    values = c(1000, 5000, 10000),
    stops = c("#ff0000", "#00ff00", "#0000ff")
)

mapgl documentation built on Nov. 1, 2024, 5:08 p.m.