dd.crown: Nearest Crown Distance and Direction from Plot Center

In adam-erickson/gapfraction: Functions for processing airborne LiDAR scans of forests

Nearest Crown Distance and Direction from Plot Center

Description

This function calculates the distance and direction to the nearest crown pixel from the plot center

Usage

dd.crown(crowns = NA, thresh.val = 1, degrees = FALSE, from = FALSE)

Arguments

crowns	Raster object of tree crown positions. Defaults to NA.
thresh.val	Threshold value used for tree crown selection. Defaults to 1.
degrees	Boolean switch for the output of direction values in degrees rather than radians. Defaults to FALSE.
from	Boolean switch for the output of direction values from nearest crowns rather than to nearest crowns. Defaults to FALSE.

Value

The results of dd.crown

Author(s)

Adam Erickson, [e-mail]

References

http://www.sciencedirect.com/science/article/pii/S0168192315001173

Examples

dd.crown(crowns=itc.crowns, thresh.val=1, degrees=FALSE, from=FALSE)

adam-erickson/gapfraction documentation built on May 12, 2024, 6:15 p.m.