addcluster_legend: Add marker layer and legend

In dpowerstp/leafletwrappers: Wraparound Leaflet Functions for Standard Maps

Add marker layer and legend

Description

Adds marker layer and legend to leaflet map, with points in cluster layer shaded by palette function

Usage

addcluster_legend(
  leafletobj,
  var,
  pal_funct,
  grp,
  labvar,
  popuptext,
  clusterpoints = T,
  title = grp,
  radius = 0.1,
  weight = 20,
  df = leaflet::getMapData(leafletobj),
  ...
)

Arguments

leafletobj	Leaflet object
var	String name of variable colored in cluster layer
pal_funct	Palette function to color cluster layer
grp	Group of cluster layer
labvar	Label to show when hover over a point; can feed either a data-masked variable name, or a set of labels created by leafletwrappers::label_standard function
popuptext	Labels to show in pop-up over point, created by leafletwrappers::label_output function
clusterpoints	Whether to cluster points; default true
title	Title of legend; default grp
radius	Radius of points; default 0.1. To size by a variable, can feed a formula with the sqrt() of a data-masked variable; e.g., ~ sqrt(unitsize)
weight	Weight of points; default 20
df	Spatial dataframe behind layer; default leaflet::getMapData(leafletobj)
...	Additional .label or .popup arguments for leafletwrappers::addcluster_standard, or opacity argument for leafletwrapper::addlegend_standard

Value

Leaflet object with cluster layer and legend

dpowerstp/leafletwrappers documentation built on Sept. 4, 2022, 10:19 a.m.