I am trying to use normalize_intensity on a small set of las files. I am linking to the data here. Here is my r code:
# Normalize intensity of a folder of las files
library(lidR)
library(future)
plan(multisession)
# Read in the folder of las files as and LASCatalog
marked_cat <- readLAScatalog("S:\\IRAD\\LidarProcessing\\IntensityNormalizationTesting\\SaltonSeaTestData\\LAS_Copy\\LAS_SmallTiles\\marked",
filter = "-drop_withheld -drop_class 7 18")
las_check(marked_cat)
# Visualize the las tiles of the files being processed
plot(marked_cat)
# Estimate the positioning of the lidar sensor. Uses first and last returns with gpstime.
sensor <- track_sensor(marked_cat, Roussel2020(pmin = 50))
# Set a location to store the output files with normalized intensity values
opt_output_files(marked_cat) <- "S:\\IRAD\\LidarProcessing\\IntensityNormalizationTesting\\SaltonSeaTestData\\LAS_Copy\\LAS_SmallTiles\\marked\\norm"
# Normalize the intensity using the sensor positioning from above.
las_norm <- normalize_intensity(marked_cat, range_correction(sensor, Rs = 2000))
From the last line of code, I get the following error:
#> Error: Only point geometry types are supported
The files I am reading in are las files (v 1.4).
Thank you!
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