clipLevel1BGeoGeometry(level1BGeo, polygon_spdf, split_by)

# Specifying the path to GEDI level1B data (zip file)
outdir = tempdir()
level1B_fp_zip <- system.file("extdata",
                  "GEDI01_B_2019108080338_O01964_T05337_02_003_01_sub.zip",
                  package="rGEDI")

# Unzipping GEDI level1B data
level1Bpath <- unzip(level1B_fp_zip,exdir = outdir)

# Reading GEDI level1B data (h5 file)
level1b<-readLevel1B(level1Bpath=level1Bpath)

# Extracting GEDI Full Waveform Geolocations
level1bGeo<-getLevel1BGeo(level1b)

# Specifying the path to shapefile
polygon_filepath <- system.file("extdata", "stands_cerrado.shp", package="rGEDI")

# Reading shapefile as SpatialPolygonsDataFrame object
library(raster)
polygon_spdf<-shapefile(polygon_filepath)

# Clipping GEDI Full Waveform Geolocations by Geometry
level1bGeo_clip = clipLevel1BGeoGeometry(level1bGeo, polygon_spdf, split_by="id")

hasLeaflet = require(leaflet)

if (hasLeaflet) {
leaflet() %>%
 addCircleMarkers(level1bGeo_clip$longitude_bin0,
                  level1bGeo_clip$latitude_bin0,
                  radius = 1,
                  opacity = 1,
                  color = "red")  %>%
 addScaleBar(options = list(imperial = FALSE)) %>%
 addPolygons(data=polygon_spdf,weight=1,col = 'white',
             opacity = 1, fillOpacity = 0) %>%
 addProviderTiles(providers$Esri.WorldImagery)
}

close(level1b)