Leaflet interactive map sensor metadata

Source: R/synoptic_leaflet.R

This function creates interactive maps that will be displayed in RStudio's 'Viewer' tab.

Typical usage would be to use the parameter argument to display pm25 values:

  • "pm2.5"

synoptic_leaflet(
  synoptic = NULL,
  parameter = "pm2.5",
  paletteName = NULL,
  radius = 10,
  opacity = 0.8,
  maptype = "terrain",
  extraVars = NULL
)

Arguments

synoptic

Synoptic metadata ~_synoptic object.

parameter

Value to plot, e.g. pm25.

paletteName

RColorBrewer palette name to use when parameter is something other than:

  • "pm2.5"

  • "humidity

  • "temperature

radius

Radius (pixels) of monitor circles.

opacity

Opacity of monitor circles.

maptype

Optional name of leaflet ProviderTiles to use, e.g. terrain.

extraVars

Character vector of additional column names to be shown in leaflet popups.

Value

A leaflet "plot" object which, if not assigned, is rendered in Rstudio's 'Viewer' tab.

Details

The maptype argument is mapped onto leaflet "ProviderTile" names. Current mappings include:

"roadmap"

-- "OpenStreetMap"

"satellite"

-- "Esri.WorldImagery"

"terrain"

-- "Esri.WorldTopoMap"

"toner"

-- "Stamen.Toner"

If a character string not listed above is provided, it will be used as the underlying map tile if available. See https://leaflet-extras.github.io/leaflet-providers/ for a list of "provider tiles" to use as the background map.

Note

The paletteName parameter can take the name of an RColorBrewer paeltte, e.g. "BuPu" or "Greens".