Description Usage Arguments Examples
Add a heatmap
Adds a heatmap with data from a GeoJSON/TopoJSON file/url
Adds a heatmap with data from a KML file/url
Adds a heatmap with data from a CSV file/url
Adds a heatmap with data from a GPX file/url
removes the heatmap
clears the heatmap
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | addHeatmap(map, lng = NULL, lat = NULL, intensity = NULL,
layerId = NULL, group = NULL, minOpacity = 0.05, max = 1,
radius = 25, blur = 15, gradient = NULL, cellSize = NULL,
data = leaflet::getMapData(map))
addGeoJSONHeatmap(map, geojson, layerId = NULL, group = NULL,
intensityProperty = NULL, minOpacity = 0.05, max = 1, radius = 25,
blur = 15, gradient = NULL, cellSize = NULL)
addKMLHeatmap(map, kml, layerId = NULL, group = NULL,
intensityProperty = NULL, minOpacity = 0.05, max = 1, radius = 25,
blur = 15, gradient = NULL, cellSize = NULL)
addCSVHeatmap(map, csv, csvParserOptions, layerId = NULL, group = NULL,
intensityProperty = NULL, minOpacity = 0.05, max = 1, radius = 25,
blur = 15, gradient = NULL, cellSize = NULL)
addGPXHeatmap(map, gpx, layerId = NULL, group = NULL,
intensityProperty = NULL, minOpacity = 0.05, max = 1, radius = 25,
blur = 15, gradient = NULL, cellSize = NULL)
removeHeatmap(map, layerId)
clearHeatmap(map)
|
map |
the map widget. |
lng |
a numeric vector of longitudes, or a one-sided formula of the form
|
lat |
a vector of latitudes or a formula (similar to the |
intensity |
intensity of the heat. A vector of numeric values or a formula. |
layerId |
the layer id |
group |
the name of the group the newly created layers should belong to
(for |
minOpacity |
minimum opacity at which the heat will start |
max |
maximum point intensity. The default is |
radius |
radius of each "point" of the heatmap. The default is
|
blur |
amount of blur to apply. The default is |
gradient |
palette name from |
cellSize |
the cell size in the grid. Points which are closer than this may be merged. Defaults to 'radius / 2'.s Set to '1' to do almost no merging. |
data |
the data object from which the argument values are derived; by
default, it is the |
geojson |
The geojson or topojson url or contents as string. |
intensityProperty |
The property to use for determining the intensity at a point. Can be a "string" or a JS function, or NULL. |
kml |
The KML url or contents as string. |
csv |
The CSV url or contents as string. |
csvParserOptions |
options for parsing the CSV.
Use |
gpx |
The GPX url or contents as string. |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | leaflet(quakes) %>%
addProviderTiles(providers$CartoDB.DarkMatter) %>%
setView( 178, -20, 5 ) %>%
addHeatmap(
lng = ~long, lat = ~lat, intensity = ~mag,
blur = 20, max = 0.05, radius = 15
)
## for more examples see
# browseURL(system.file("examples/heatmaps.R", package = "leaflet.extras"))
kml <- readr::read_file(
system.file("examples/data/kml/crimes.kml.zip", package = "leaflet.extras")
)
leaflet() %>%
setView(-77.0369, 38.9072, 12) %>%
addProviderTiles(providers$CartoDB.Positron) %>%
addKMLHeatmap(kml, radius = 7) %>%
addKML(
kml,
markerType = "circleMarker",
stroke = FALSE, fillColor = "black", fillOpacity = 1,
markerOptions = markerOptions(radius = 1))
## for more examples see
# browseURL(system.file("examples/KML.R", package = "leaflet.extras"))
|
Loading required package: leaflet
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.