add_fill_layer: Add a fill layer to a map

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

Add a fill layer to a map

Description

Add a fill layer to a map

Usage

add_fill_layer(
  map,
  id,
  source,
  source_layer = NULL,
  fill_antialias = TRUE,
  fill_color = NULL,
  fill_emissive_strength = NULL,
  fill_opacity = NULL,
  fill_outline_color = NULL,
  fill_pattern = NULL,
  fill_sort_key = NULL,
  fill_translate = NULL,
  fill_translate_anchor = "map",
  fill_z_offset = NULL,
  visibility = "visible",
  slot = NULL,
  min_zoom = NULL,
  max_zoom = NULL,
  popup = NULL,
  tooltip = NULL,
  hover_options = NULL,
  before_id = NULL,
  filter = NULL
)

Arguments

map	A map object created by the mapboxgl or maplibre functions.
id	A unique ID for the layer.
source	The ID of the source, alternatively an sf object (which will be converted to a GeoJSON source) or a named list that specifies type and url for a remote source.
source_layer	The source layer (for vector sources).
fill_antialias	Whether or not the fill should be antialiased.
fill_color	The color of the filled part of this layer.
fill_emissive_strength	Controls the intensity of light emitted on the source features.
fill_opacity	The opacity of the entire fill layer.
fill_outline_color	The outline color of the fill.
fill_pattern	Name of image in sprite to use for drawing image fills.
fill_sort_key	Sorts features in ascending order based on this value.
fill_translate	The geometry's offset. Values are c(x, y) where negatives indicate left and up.
fill_translate_anchor	Controls the frame of reference for fill-translate.
fill_z_offset	Specifies an uniform elevation in meters.
visibility	Whether this layer is displayed.
slot	An optional slot for layer order.
min_zoom	The minimum zoom level for the layer.
max_zoom	The maximum zoom level for the layer.
popup	A column name containing information to display in a popup on click. Columns containing HTML will be parsed.
tooltip	A column name containing information to display in a tooltip on hover. Columns containing HTML will be parsed.
hover_options	A named list of options for highlighting features in the layer on hover.
before_id	The name of the layer that this layer appears "before", allowing you to insert layers below other layers in your basemap (e.g. labels).
filter	An optional filter expression to subset features in the layer.

Value

The modified map object with the new fill layer added.

Examples

## Not run: 
library(tidycensus)

fl_age <- get_acs(
    geography = "tract",
    variables = "B01002_001",
    state = "FL",
    year = 2022,
    geometry = TRUE
)

mapboxgl() |>
    fit_bounds(fl_age, animate = FALSE) |>
    add_fill_layer(
        id = "fl_tracts",
        source = fl_age,
        fill_color = interpolate(
            column = "estimate",
            values = c(20, 80),
            stops = c("lightblue", "darkblue"),
            na_color = "lightgrey"
        ),
        fill_opacity = 0.5
    )

## End(Not run)

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