mapview (version 2.11.3)

viewExtent: View extent/bbox of spatial objects interactively

Description

This function produces an interactive view of the extent/bbox of the supplied spatial object

Usage

viewExtent(
  x,
  map = NULL,
  popup = NULL,
  layer.name = NULL,
  alpha.regions = 0.2,
  label = NULL,
  ...
)

Arguments

x

either a Raster*, sf* or Spatial* object

map

a leaflet or mapview map the extent should be added to. If NULL standard background layers are created.

popup

a list of HTML strings with the popup contents, usually created from popupTable. See addControl for details.

layer.name

the name of the layer to be shown on the map.

alpha.regions

opacity of the fills or the raster layer(s).

label

a character vector of labels to be shown on mouseover. See addControl for details.

...

Arguments passed on to leaflet::addRectangles

layerId

the layer id

data

the data object from which the argument values are derived; by default, it is the data object provided to leaflet() initially, but can be overridden

group

the name of the group the newly created layers should belong to (for clearGroup and addLayersControl purposes). Human-friendly group names are permitted--they need not be short, identifier-style names. Any number of layers and even different types of layers (e.g. markers and polygons) can share the same group name.

options

a list of extra options for tile layers, popups, paths (circles, rectangles, polygons, ...), or other map elements

popupOptions

A Vector of popupOptions to provide popups

labelOptions

A Vector of labelOptions to provide label options for each label. Default NULL

stroke

whether to draw stroke along the path (e.g. the borders of polygons or circles)

color

stroke color

weight

stroke width in pixels

opacity

stroke opacity (or layer opacity for tile layers)

fill

whether to fill the path with color (e.g. filling on polygons or circles)

fillColor

fill color

fillOpacity

fill opacity

dashArray

a string that defines the stroke dash pattern

highlightOptions

Options for highlighting the shape on mouse over.

smoothFactor

how much to simplify the polyline on each zoom level (more means better performance and less accurate representation)

noClip

whether to disable polyline clipping

lng1,lat1,lng2,lat2

latitudes and longitudes of the south-west and north-east corners of rectangles

Author

Tim Appelhans

Examples

library(leaflet)

viewExtent(breweries)
viewExtent(franconia) + breweries
mapview(franconia) %>% leafem::addExtent(franconia, fillColor = "yellow")
leaflet() %>% addProviderTiles("OpenStreetMap") %>% leafem::addExtent(breweries)
leaflet() %>% addProviderTiles("OpenStreetMap") %>% leafem::addExtent(breweries)