Calculate and save figures of tree_height_pc function

Calculates the tree height and saves the figures acquired when running tree_height_pc on multiple tree point clouds in a folder.

Usage

plot_tree_height_pcs(
  PCs_path,
  extension = ".txt",
  dtm = NA,
  r = 5,
  OUT_path = "./",
  plotcolors = c("#000000", "#08aa7c", "#fac87f")
)

Arguments

PCs_path

A character with the path to the folder that contains the tree point clouds.

extension

A character refering to the file extension of the point cloud files (default=".txt"). Can be ".txt", ".ply" or ".las".

dtm

The digital terrain model (default = NA), parameter of tree_height_pc.

r

Numeric value (default=5) r, parameter of tree_height_pc. Only relevant if a dtm is provided.

OUT_path

A character with the path to the folder where the figures should be saved (default = current folder).

plotcolors

list of three colors for plotting. Only relevant when plot = TRUE. The tree points, the lowest point height and the DTM points are colored by the first, second and third element of this list respectively.

Value

A list with in the first element a numeric containing the tree height values for each tree point cloud. In the second element there is the list with the plots. Figures are also saved in the output folder.

Details

Uses read_tree_pc to read the point clouds and tree_height_pc with parameter plot = TRUE to calculate the tree height and plot the tree point cloud.

Examples

if (FALSE) {
# Calculate tree height and save figures
height_values <- plot_tree_height_pcs(
  PCs_path = "path/to/folder/PCs/",
  extension = ".txt",
  OUT_path = "path/to/figure/folder/"
)
# Calculate tree height using dtm of resolution 2 and save figures
dtm_df <- read_tree_pc("path/to/dtm.txt")
height_values <- plot_tree_height_pcs(
  PCs_path = "path/to/folder/PCs/",
  extension = ".txt", dtm = dtm_df, r = 2,
  OUT_path = "path/to/figure/folder/"
)
}