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@Jean-Romain Jean-Romain released this 02 Mar 19:08
· 923 commits to master since this release
v2.2.3
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lidR v2.2.3

FIXES

  1. This fix breaks backward compatibility. In catalog_apply() if automerge = TRUE and the output contains a list of strings the list was expected to be merged into a character vector. But actually, the raw list was returned, which was not the intended behavior. This appends with Spatial* and sf objects and with data.frame. This bug should not have affected too many people.

    opt_output_files(ctg) <- paste0(tempdir(), "/{ORIGINALFILENAME}")
option <- list(automerge = TRUE)
ret <- catalog_apply(ctg, sptest, .options = option) # now returns a vector
print(ret) 
#> "/tmp/RtmpV4CQll/file38f1.txt" "/tmp/RtmpV4CQll/file38g.txt"  "/tmp/RtmpV4CQll/file38h.txt" "/tmp/RtmpV4CQll/file38i.txt"

  2. When using a grid_* function with a RasterLayer used as layout, if the layout was not empty or full of NAs, the values of the layout were transferred to the NA cells of the output #318.

  3. lascheck() no longer warns about "proj4string found but no CRS in the header". This was a false positive. Overall, CRS are better checked.

ENHANCEMENTS

  1. opt_output_files() now prints a message when using the ORIGINALFILENAME template with a chunk size that is not 0 to inform users that it does not make sense.

    opt_chunk_size(ctg) <- 800
opt_output_files(ctg) <- "{ORIGINALFILENAME}"
#> ORIGINALFILENAME template has been used but the chunk size is not 0. This template makes sense only when processing by file.

  2. Internally when building the chunks an informative error is now thrown when using the ORIGINALFILENAME template with a chunk size that is not 0 to inform users that it does not make sense instead of the former uninformative error, Error in eval(parse(text = text, keep.source = FALSE), envir) : objet 'ORIGINALFILENAME' not found.

    #>  Erreur : The template {ORIGINALFILENAME} makes sense only when processing by file (chunk size = 0). It is undefined otherwise.

  3. When using a "by file" processing strategy + a buffer around each file, up to 9 files may be read. Internally the chunks (LAScluster) are now built in such a way that the first file read is the main one (and not one of the "buffer file"). This way, if the 9 files do not have the same scales and the same offsets, the main file has precedence over the other ones when rescaling and re-offsetting on-the-fly. This reduces the risk of incompatibilities and preserves the original pattern when processing a LAScatalog.

  4. grid_metrics() now constructs a RasterBrick in a better way and this reduces the risk of bugs with users' functions that sometimes return 0 length objects. The RasterBrick will now be properly filled with NAs.

  5. lascheck() now reports information if some points are flagged 'withheld', 'synthetic' or 'keypoint'.

  6. We moved the internal logic of chunk realignment with a raster from catalog_apply() to the internal function catalog_makecluster(). This simplifies the source code, make it easier to maintain and test and will enable us to provide access, at the user level, to more internal functions in future releases.

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