add_line_layer {mapboxer}

Add a line layer to the map

Description

Add a line layer to the map

Usage

add_line_layer(map, source = NULL, filter = NULL, line_blur = NULL,
  line_cap = NULL, line_color = NULL, line_dasharray = NULL,
  line_gap_width = NULL, line_gradient = NULL, line_join = NULL,
  line_miter_limit = NULL, line_offset = NULL, line_opacity = NULL,
  line_pattern = NULL, line_round_limit = NULL, line_sort_key = NULL,
  line_translate = NULL, line_translate_anchor = NULL,
  line_width = NULL, visibility = NULL, popup = NULL,
  id = "line-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.

line_blur

(paint) Blur applied to the line, in pixels.

line_cap

(layout) The display of line endings. One of "butt", "round", "square".

line_color

(paint) The color with which the line will be drawn.

line_dasharray

(paint) Specifies the lengths of the alternating dashes and gaps that form the dash pattern.

line_gap_width

(paint) Draws a line casing outside of a line's actual path. The value indicates the width of the inner gap.

line_gradient

(paint) Defines a gradient with which to color a line feature. Can only be used with GeoJSON sources that specify lineMetrics = TRUE.

line_join

(layout) The display of lines when joining. One of "bevel", "round", "miter".

line_miter_limit

(layout) Used to automatically convert miter joins to bevel joins for sharp angles. Requires line_join to be "miter".

line_offset

(paint) The line's offset. For linear features, a positive value offsets the line to the right, relative to the direction of the line, and a negative value to the left. For polygon features, a positive value results in an inset, and a negative value results in an outset.

line_opacity

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

line_pattern

(paint) Name of image in sprite to use for drawing image lines.

line_round_limit

(layout) Used to automatically convert round joins to miter joins for shallow angles.

line_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.

line_translate

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

line_translate_anchor

(paint) Controls the frame of reference for line_translate.

line_width

(paint) Stroke thickness.

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/#line

Examples

map <-  as_mapbox_source(geojsonsf::geo_melbourne) %>%
  mapboxer(
    center = c(144.9624, -37.8105),
    zoom = 11,
    pitch = 45
  ) %>%
  add_navigation_control() %>%
  add_line_layer(
    line_color = c("get", "strokeColor"),
    line_width = 2,
    popup = "{{SA2_NAME}}"
  )

if (interactive()) map