# Airborne LiDAR Data Manipulation and Visualization for Forestry Applications

## Documentation for package ‘lidR’ version 2.0.2

- DESCRIPTION file.
- User guides, package vignettes and other documentation.

## Help Pages

A C D E F G H I K L M O P R S T U V W misc

## -- A --

add_dtm3d | Add a spatial object to a point cloud scene
add_treetops3d | Add a spatial object to a point cloud scene
area | Surface covered by a LAS* object.
area-method | Surface covered by a LAS* object.
as.list.LASheader | Transform to a list
as.spatial | Transform a LAS* object into an sp object

## -- C --

catalog | Create an object of class LAScatalog
catalog_apply | LAScatalog processing engine
catalog_intersect | Subset a LAScatalog with a Spatial* object
catalog_options_tools | Get or set LAScatalog processing engine options
catalog_retile | Retile a LAScatalog
csf | Ground Segmentation Algorithm

## -- D --

dalponte2016 | Individual Tree Segmentation Algorithm
dsmtin | Digital Surface Model Algorithm

## -- E --

entropy | Normalized Shannon diversity index
epsg | Get or set epsg code of a LAS* object
epsg-method | Get or set epsg code of a LAS* object
epsg<- | Get or set epsg code of a LAS* object
epsg<--method | Get or set epsg code of a LAS* object
extent-method | Extent

## -- F --

forest.colors | Palettes

## -- G --

gap_fraction_profile | Gap fraction profile
grid_canopy | Digital Surface Model
grid_density | Map the pulse or point density
grid_hexametrics | Area-Based Approach in hexagonal cells.
grid_metrics | Area-Based Approach
grid_metrics3d | Voxelize the space and compute metrics for each voxel
grid_terrain | Digital Terrain Model

## -- H --

height.colors | Palettes
highest | Point Cloud Decimation Algorithm
homogenize | Point Cloud Decimation Algorithm

## -- I --

is.empty | Test if a 'LAS' object is empty
is.empty-method | Test if a 'LAS' object is empty

## -- K --

knnidw | Spatial Interpolation Algorithm
kriging | Spatial Interpolation Algorithm

## -- L --

LAD | Leaf area density
LAS | An S4 class to represent a .las or .laz file
LAS-class | An S4 class to represent a .las or .laz file
lasaddattribute | Add attributes into a LAS object
lasadddata | Add attributes into a LAS object
lasaddextrabytes | Add attributes into a LAS object
lasaddextrabytes_manual | Add attributes into a LAS object
LAScatalog-class | An S4 class to represent a catalog of .las or .laz files
lascheck | Inspect a LAS object
lasclip | Clip LiDAR points
lasclipCircle | Clip LiDAR points
lasclipPolygon | Clip LiDAR points
lasclipRectangle | Clip LiDAR points
lasfilter | Return points with matching conditions
lasfilterdecimate | Decimate a LAS object
lasfilterduplicates | Filter duplicated points
lasfilterfirst | Predefined filters
lasfilterfirstlast | Predefined filters
lasfilterfirstofmany | Predefined filters
lasfilterground | Predefined filters
lasfilterlast | Predefined filters
lasfilternth | Predefined filters
lasfilters | Predefined filters
lasfiltersingle | Predefined filters
lasfiltersurfacepoints | Filter the surface points
lasflightline | Retrieve individual pulses, flightlines or scanlines
lasground | Classify points as 'ground' or 'not ground'
LASheader | Create a 'LASheader' object
LASheader-class | An S4 class to represent the header of .las or .laz files
lasmergespatial | Merge a point cloud with a source of spatial data
lasmetrics | Compute metrics for a cloud of points
lasnormalize | Remove the topography from a point cloud
laspulse | Retrieve individual pulses, flightlines or scanlines
lasremoveextrabytes | Add attributes into a LAS object
lasscanline | Retrieve individual pulses, flightlines or scanlines
lassmooth | Smooth a point cloud
lassnags | Snag classification
lastransform | Datum transformation for LAS objects
lastrees | Individual tree segmentation
lasunnormalize | Remove the topography from a point cloud
lasunsmooth | Smooth a point cloud
lasvoxelize | Voxelize a point cloud
li2012 | Individual Tree Segmentation Algorithm
lidrpalettes | Palettes
lmf | Individual Tree Detection Algorithm

## -- M --

manual | Individual Tree Detection Algorithm
mcwatershed | Individual Tree Segmentation Algorithm

## -- O --

opt_chunk_alignment | Get or set LAScatalog processing engine options
opt_chunk_alignment<- | Get or set LAScatalog processing engine options
opt_chunk_buffer | Get or set LAScatalog processing engine options
opt_chunk_buffer<- | Get or set LAScatalog processing engine options
opt_chunk_size | Get or set LAScatalog processing engine options
opt_chunk_size<- | Get or set LAScatalog processing engine options
opt_cores | Get or set LAScatalog processing engine options
opt_cores<- | Get or set LAScatalog processing engine options
opt_filter | Get or set LAScatalog processing engine options
opt_filter<- | Get or set LAScatalog processing engine options
opt_laz_compression | Get or set LAScatalog processing engine options
opt_laz_compression<- | Get or set LAScatalog processing engine options
opt_output_files | Get or set LAScatalog processing engine options
opt_output_files<- | Get or set LAScatalog processing engine options
opt_progress | Get or set LAScatalog processing engine options
opt_progress<- | Get or set LAScatalog processing engine options
opt_select | Get or set LAScatalog processing engine options
opt_select<- | Get or set LAScatalog processing engine options
opt_stop_early | Get or set LAScatalog processing engine options
opt_stop_early<- | Get or set LAScatalog processing engine options
opt_wall_to_wall | Get or set LAScatalog processing engine options
opt_wall_to_wall<- | Get or set LAScatalog processing engine options

## -- P --

p2r | Digital Surface Model Algorithm
pastel.colors | Palettes
pitfree | Digital Surface Model Algorithm
plot | Plot a LAS* object
plot-method | Plot a LAS* object
plot.lasmetrics3d | Plot voxelized LiDAR data
plot_3d | Add a spatial object to a point cloud scene
plot_dtm3d | Add a spatial object to a point cloud scene
pmf | Ground Segmentation Algorithm
print | Summary and Print for 'LAS*' objects
print-method | Summary and Print for 'LAS*' objects

## -- R --

random | Point Cloud Decimation Algorithm
random.colors | Palettes
rbind.LAS | Merge LAS objects
readLAS | Read .las or .laz files
rumple_index | Rumple index of roughness

## -- S --

silva2016 | Individual Tree Segmentation Algorithm
stdmetrics | Predefined standard metrics functions
stdmetrics_ctrl | Predefined standard metrics functions
stdmetrics_i | Predefined standard metrics functions
stdmetrics_pulse | Predefined standard metrics functions
stdmetrics_rn | Predefined standard metrics functions
stdmetrics_z | Predefined standard metrics functions
stdtreemetrics | Predefined standard metrics functions
summary | Summary and Print for 'LAS*' objects
summary-method | Summary and Print for 'LAS*' objects

## -- T --

tin | Spatial Interpolation Algorithm
tree_detection | Individual tree detection
tree_hulls | Compute the hull of each tree.
tree_metrics | Compute metrics for each tree

## -- U --

util_makeZhangParam | Parameters for progressive morphological filter

## -- V --

VCI | Vertical Complexity Index

## -- W --

watershed | Individual Tree Segmentation Algorithm
wing2015 | Snags Segmentation Algorithm
writeLAS | Write a .las or .laz file

## -- misc --

$<--method | Inherited but modified methods from sp
--method | Remove the topography from a point cloud
.stdmetrics | Predefined standard metrics functions
.stdmetrics_ctrl | Predefined standard metrics functions
.stdmetrics_i | Predefined standard metrics functions
.stdmetrics_pulse | Predefined standard metrics functions
.stdmetrics_rn | Predefined standard metrics functions
.stdmetrics_z | Predefined standard metrics functions
.stdtreemetrics | Predefined standard metrics functions
[-method | Inherited but modified methods from sp
[[<--method | Inherited but modified methods from sp