mapboxer (version 0.4.0)

add_circle_layer: Add a circle layer to the map

Description

Add a circle layer to the map

Usage

add_circle_layer(map, source = NULL, filter = NULL,
  circle_blur = NULL, circle_color = NULL, circle_opacity = NULL,
  circle_pitch_alignment = NULL, circle_pitch_scale = NULL,
  circle_radius = NULL, circle_sort_key = NULL,
  circle_stroke_color = NULL, circle_stroke_opacity = NULL,
  circle_stroke_width = NULL, circle_translate = NULL,
  circle_translate_anchor = NULL, visibility = TRUE, popup = NULL,
  id = "circle-layer")

Arguments

map

A mapboxer object.

source

A Mapbox source. Uses the source from the mapboxer object if no source is supplied.

filter

A filter expression that is applied to the source.

circle_blur

(paint) Amount to blur the circle. 1 blurs the circle such that only the centerpoint is full opacity.

circle_color

(paint) The fill color of the circle.

circle_opacity

(paint) The opacity at which the circle will be drawn.

circle_pitch_alignment

(paint) Orientation of circle when map is pitched. One of "map", "viewport".

circle_pitch_scale

(paint) Controls the scaling behavior of the circle when the map is pitched. One of "map", "viewport".

circle_radius

(paint) The radius of the circle.

circle_sort_key

(layout) Sorts features in ascending order based on this value. Features with a higher sort key will appear above features with a lower sort key.

circle_stroke_color

(paint) The stroke color of the circle.

circle_stroke_opacity

(paint) The opacity of the circle's stroke.

circle_stroke_width

(paint) The width of the circle's stroke. Strokes are placed outside of the circle_radius.

circle_translate

(paint) The geometry's offset. Values are [x, y] where negatives indicate left and up, respectively.

circle_translate_anchor

(paint) Controls the frame of reference for circle_translate. One of "map", "viewport".

visibility

(layout) Whether the layer should be displayed.

popup

A mustache template in which the tags refer to the properties of the layer's data object.

id

The unique id of the layer.

See Also

https://docs.mapbox.com/mapbox-gl-js/style-spec/layers/#circle

Examples

# NOT RUN {
map <- as_mapbox_source(motor_vehicle_collisions_nyc) %>%
  mapboxer() %>%
  set_view_state(-73.9165, 40.7114, 11) %>%
  add_circle_layer(
    circle_color = "red",
    circle_radius = 5,
    popup = "{{date}} {{time}}"
  )

if (interactive()) map
# }