l: Label features

In USEPA/quickmapr: Quickly Map and Explore Spatial Data

Description

It is useful to be able to provide labels to features on your map when examining the results of given analysis. This function adds labels for a given layer (currently just point or polygon layers).

Usage

l(qmap_obj, field = NULL, layer = 1)

Arguments

qmap_obj	a qmap object from which to pull the labels. Raster layers are ignored. Will also accept sp objects.
field	a field in the sp object to use to label the features. Defaults to row.names().
layer	identify which sp layer to label. Defaults to first layer in qmap_obj$map_data.

Examples

## Not run: 
data(lake)
qm<-qmap(lake,width,buffer)
l(qm,'COMID')
l(qm, layer = 2)
l(qm, layer = "buffer")

## End(Not run)

USEPA/quickmapr documentation built on May 9, 2019, 6:05 p.m.