BIOMASS (version 2.1.11)

attributeTreeCoord: Attribute trees to GPS coordinates

Description

Attribute trees to GPS coordinates

Usage

attributeTreeCoord(xy, plot, dim, coordAbs)

Value

A data frame with two columns: - Xproj: The X coordinates in the absolute coordinate system - Yproj: The Y coordinates in the absolute coordinate system

Arguments

xy

The relative coordinates of the trees within each plot

plot

The label of the plot (same length as the number of rows of xy or length of 1)

dim

The dimension of the plot (either one value if the plot is a square or a vector if a rectangle)

coordAbs

The result of the function cutPlot() or numberCorner()

Examples

# Trees relative coordinates
xy <- data.frame(x = runif(200, min = 0, max = 200), y = runif(200, min = 0, max = 200))


# cut the plot in multiple part
coord <- data.frame(X = rep(c(0, 200, 0, 200), 2), Y = rep(c(0, 0, 200, 200), 2))
coord[1:4, ] <- coord[1:4, ] + 5000
coord[5:8, ] <- coord[5:8, ] + 6000
corner <- rep(c(1, 2, 4, 3), 2)
Forestplot <- rep(c("plot1", "plot2"), each = 4)

Outcut <- cutPlot(coord, Forestplot, corner, gridsize = 100, dimX = 200, dimY = 200)


# Assign a plot to 200 trees
Forestplot <- rep(c("plot1", "plot2"), 100)

# attribute trees to subplots
attributeTreeCoord(xy, Forestplot, dim =100,coordAbs = Outcut)