Clip GEDI Full Waveform Geolocations by Coordinates
This function clips GEDI level1B extracted geolocation (level1BGeo) data a within given bounding coordinates
clipLevel1BGeo(level1BGeo, xmin, xmax, ymin, ymax)
level1BGeo |
A GEDI Level1b object (output of |
xmin |
Numeric. West longitude (x) coordinate of the bounding rectangle, in decimal degrees. |
xmax |
Numeric. East longitude (x) coordinate of the bounding rectangle, in decimal degrees. |
ymin |
Numeric. South latitude (y) coordinate of the bounding rectangle, in decimal degrees. |
ymax |
Numeric. North latitude (y) coordinate of the bounding rectangle, in decimal degrees. |
Returns an S4 object of class data.table-class.
https://lpdaac.usgs.gov/products/gedi01_bv001/
# 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)
# Bounding rectangle coordinates
xmin = -44.15036
xmax = -44.10066
ymin = -13.75831
ymax = -13.71244
# Clipping GEDI Full Waveform Geolocations by boundary box extent
level1bGeo_clip <- clipLevel1BGeo(level1bGeo,xmin, xmax, ymin, ymax)
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)) %>%
addProviderTiles(providers$Esri.WorldImagery)
}
close(level1b)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.