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"`.