geojson_map

R Documentation

Create map, whether static or interactive leaflet, from GeoJSON file

Description

Create distribution map

Usage

geojson_map(
  map.name = "map",
  geojson.path = paste0(system.file(package = "eamenaR"),
    "/extdata/caravanserail.geojson"),
  ids = "EAMENA ID",
  field.names = NA,
  highlights.ids = NA,
  symbology = paste0(system.file(package = "eamenaR"), "/extdata/symbology.xlsx"),
  stamen.zoom = NA,
  fields.for.labels = c("Site Feature Interpretation Type", "Cultural Period Type",
    "Administrative Division ", "Country Type ", "Overall Condition State Type"),
  interactive = F,
  export.plot = F,
  dirOut = paste0(system.file(package = "eamenaR"), "/results/"),
  fig.width = 8,
  fig.height = 8
)

Arguments

map.name	name of output map and name of saved file (if export.plot is TRUE). Default "map".
geojson.path	path of GeoJSON file. Default 'caravanserail.geojson'.
ids	IDs of resources, default "EAMENA.ID" (R fieldname format, without spaces).
field.names	a vector of one or many field names for thematic cartography. If NA (default), will create a general map
highlights.ids	EAMENA IDs (ex: 'EAMENA-0205783') that will be highlighted in map. If NA (default), no highlights.
symbology	path to XLSX recording symbology for different values, default 'symbology.xlsx'.
stamen.zoom	zoom of Stamen basemap, between 0 (world, unprecise) to 21 (building, very precise). Default NA, zoom level will be calculated automatically.
interactive	if FALSE create static PNG (by default), if TRUE create a plotly plot as HTML widget.
export.plot	if TRUE, export plot, if FALSE will only display it.
dirOut	folder where outputs will be saved. Default: '/results'. If it doesn't exist, will be created. Only useful if export plot is TRUE.
fig.width, fig.height	size of output map.

Value

An interactive map (leaflet) or not

Examples

# plot a general map of heritage places
geojson_map(map.name = "caravanserail")

# save a thematic map
geojson_map(map.name = "caravanserail",
           field.names = c("Damage Extent Type"),
           export.plot = T)

# save different thematic maps
geojson_map(map.name = "caravanserail",
           field.names = c("Disturbance Cause Type ", "Damage Extent Type"),
           export.plot = T)

# save an interactive map
geojson_map(map.name = "caravanserail_plotly",
            interactive = T,
            export.plot = T)

# plot a general map of geoarchaeological data
geojson_map(map.name = "geoarch",
            ids = "GEOARCH.ID",
            stamen.zoom = 6,
            geojson.path = "C:/Rprojects/eamena-arches-dev/data/geojson/geoarchaeo.geojson",
            export.plot = F)