Clip GEDI Level2B data by geometry
This function extracts GEDI Level1B data within a given geometry
clipLevel2BGeometry(level2b, polygon_spdf, output = "", split_by = NULL)
level2b |
A GEDI Level2B object (output of |
polygon_spdf |
Polygon. An object of class |
output |
optional character path where to save the new h5file. Default "" (temporary file). |
split_by |
Polygon id. If defined, GEDI data will be clipped by each polygon using the attribute specified by |
Returns a list of S4 objects of class "gedi.level2b" containing clipped GEDI Level2B data.
https://lpdaac.usgs.gov/products/gedi01_bv001/
outdir = tempdir()
# Specifying the path to GEDI level2B data (zip file)
level2B_fp_zip <- system.file("extdata",
"GEDI02_B_2019108080338_O01964_T05337_02_001_01_sub.zip",
package="rGEDI")
# Unzipping GEDI level2A data
level2Bpath <- unzip(level2B_fp_zip,exdir = outdir)
# Reading GEDI level2B data (h5 file)
level2b<-readLevel2B(level2Bpath=level2Bpath)
# 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)
# Specifying output file and path
output<-file.path(outdir,"GEDI02_B_2019108080338_O01964_T05337_02_001_01_clip")
# Clipping GEDI data by extent boundary box
level2b_clip <- clipLevel2BGeometry(level2b, polygon_spdf = polygon_spdf,
output=output,
split_by="id")
close(level2b)
lapply(level2b_clip, close)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.