Filter duplicated points
Filter points that appear more than once in the point cloud according to their X Y Z coordinates
If the input is a
LAS object, returns a
LAS object. If the input is a
LAScatalog, returns a
Working with a
This section appears in each function that supports a LAScatalog as input.
lidR when the input of a function is a LAScatalog the
function uses the LAScatalog processing engine. The user can modify the engine options using
the available options. A careful reading of the
engine documentation is recommended before processing
lidR function should come with a section that documents the supported engine options.
LAScatalog engine supports
.lax files that significantly improve the computation
speed of spatial queries using a spatial index. Users should really take advantage a
but this is not mandatory.
Supported processing options
Supported processing options for a
LAScatalog (in bold). For more details see the
LAScatalog engine documentation:
chunk size: How much data is loaded at once.
chunk buffer: This function guarantee a strict wall-to-wall continuous output. The
bufferoption is not considered.
chunk alignment: Align the processed chunks.
cores: How many cores are used. More cores means more data is loaded at once.
progress: Displays a progression estimation.
output_files*: Mandatory because the output is likely to be too big to be returned in R and needs to be written in las/laz files. Supported templates are
IDand, if chunk is size equal to 0 (processing by file),
select: The function will write files equivalent to the original ones. Thus
select = "*"and cannot be changed.
filter: Read only points of interest.