Create Map Symbols for 'leaflet' maps

Usage

makeSymbol(
  shape,
  width,
  height = width,
  color,
  fillColor = color,
  opacity = 1,
  fillOpacity = opacity,
  ...
)

makeSvgUri(svg, width, height, strokeWidth)

makeSymbolIcons(
  shape,
  color,
  fillColor = color,
  opacity,
  fillOpacity = opacity,
  strokeWidth = 1,
  width,
  height = width,
  ...
)

addSymbols(
  map,
  lng,
  lat,
  values,
  shape,
  color,
  fillColor = color,
  opacity = 1,
  fillOpacity = opacity,
  strokeWidth = 1,
  width = 20,
  height = width,
  dashArray = NULL,
  data = leaflet::getMapData(map),
  ...
)

addSymbolsSize(
  map,
  lng,
  lat,
  values,
  shape,
  color,
  fillColor = color,
  opacity = 1,
  fillOpacity = opacity,
  strokeWidth = 1,
  baseSize = 20,
  data = leaflet::getMapData(map),
  ...
)

sizeNumeric(values, baseSize)

sizeBreaks(values, breaks, baseSize, ...)

makeSymbolsSize(
  values,
  shape = "rect",
  color,
  fillColor,
  opacity = 1,
  fillOpacity = opacity,
  strokeWidth = 1,
  baseSize,
  ...
)

Arguments

shape: the desired shape of the symbol, See availableShapes
width: in pixels
height: in pixels
color: stroke color
fillColor: fill color
opacity: stroke opacity
fillOpacity: fill opacity
...: arguments to pass to pretty
svg: inner svg tags for symbol
strokeWidth: stroke width in pixels
map: a map widget object created from 'leaflet'
lng: a numeric vector of longitudes, or a one-sided formula of the form ~x where x is a variable in data; by default (if not explicitly provided), it will be automatically inferred from data by looking for a column named lng, long, or longitude (case-insensitively)
lat: a vector of latitudes or a formula (similar to the lng argument; the names lat and latitude are used when guessing the latitude column from data)
values: the values used to generate shapes; can be omitted for a single type of shape
dashArray: a string or vector/list of strings that defines the stroke dash pattern
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
baseSize: re-scaling size in pixels of the mean of the values, the average value will be this exact size
breaks: an integer specifying the number of breaks or a numeric vector of the breaks; if a named vector then the names are used as labels.

Value

HTML svg element