add_grid_layer {deckgl}R Documentation

Add a grid layer to the deckgl widget

Description

The GridLayer renders a grid heatmap based on an array of points. It takes the constant size all each cell, projects points into cells. The color and height of the cell is scaled by number of points it contains.

Usage

add_grid_layer(deckgl, id = "grid-layer", data = NULL,
  properties = list(), ...)

Arguments

deckgl

A deckgl widget object.

id

The unique id of the layer.

data

The url to fetch data from or a data object.

properties

A named list of properties with names corresponding to the properties defined in the deckgl-api-reference for the given layer class.

...

More properties that will be added to the properties object. This can be useful if you want to use a properties object for more than one layer.

See Also

https://deck.gl/#/documentation/deckgl-api-reference/layers/grid-layer

Examples

## @knitr grid-layer
data("sf_bike_parking")

properties <- list(
  visible = TRUE,
  extruded = TRUE,
  cellSize = 200,
  elevationScale = 4,
  getPosition = ~lng + lat,
  colorRange = RColorBrewer::brewer.pal(6, "YlOrRd"),
  tooltip = "{{position.0}}, {{position.1}}<br/>Count: {{count}}"
)

deck <- deckgl(zoom = 11, pitch = 45, bearing = 35, element_id = "grid-layer") %>%
  add_source("sf-bike-parking", sf_bike_parking) %>%
  add_grid_layer(source = "sf-bike-parking", properties = properties) %>%
  add_control("Grid Layer") %>%
  add_basemap() %>%
  add_json_editor(wrap = 50, maxLines = 22)

if (interactive()) deck

[Package deckgl version 0.2.7 Index]