LAS files for a county, and I would like to stitch/combine them all into one single
LAS file and write it to disk without bringing it into
R. Since, each
LAS file when imported into
R has a size of
1.7 GB, I am looking for a way to combine these files without having to import them into
R or maybe there is another way.
# Import the list of LAS files in the folder FL_LAS_List = readLAScatalog("//path")
How can I do this?
I did find this question:
Code in the answer:
opt_output_files(ctg) <- "folder/singlefilename" opt_chunk_buffer(ctg) <- 0 opt_chunk_size(ctg) <- 10000 singlefile_ctg <- catalog_retile(ctg)
However, I do have some questions.
- Why are
opt_chunk_buffer(ctg) <- 0 opt_chunk_size(ctg) <- 10000being added? And why the value
- And this
singlefile_ctg <- catalog_retile(ctg)will write the merged LAS file into the same folder as given in
ctg = readLAScatalog("folder/")? Because my output path is different from the input folder.
On a side note when I run
readLAScatalog(), I get the following warning, I don't know if this is going to be an issue while merging the files.
Be careful, some tiles seem to overlap each other. lidR may return incorrect outputs with edge artifacts when processing this catalog.