Reads a tree point cloud file of txt, las/laz or ply format and returns the tree point cloud as a data.frame with 3 columns (X,Y,Z).
Arguments
- path
A character with the path to the tree point cloud file. File can be txt, las, laz or ply format. The 3D coordinates have to be in the first three columns in case of a txt file.
- samplefactor
A numeric value ranging from 0 to 1 (default=1). This determines the amount of points that are sampled from the point cloud. 1 to sample 100 percent of the points and for example 0.5 to sample 50 percent of the points.
Value
The tree point cloud as a data.frame (nx3) with X, Y, and Z coordinates in the first, second and third column respectively.
Details
Reading the txt, las/laz and ply files is based on
fread, readTLSLAS and
vcgPlyRead respectively. Sampling is based on
sample and is mainly a useful tool to reduce the amount
of points for quicker plotting.
Examples
if (FALSE) {
# Read a tree point cloud file of the txt format
pc_txt <- read_tree_pc(PC_path = "path/to/point_cloud.txt")
# Read a tree point cloud file of the ply format
pc_ply <- read_tree_pc(PC_path = "path/to/point_cloud.ply")
# Read a tree point cloud file of the las/laz format
# and subsample to 20 percent of the points
pc_las <- read_tree_pc(PC_path = "path/to/point_cloud.las", 0.2)
}