smerc (version 1.4.2)

dist.ellipse: Compute minor axis distance of ellipse

Description

dist.ellipse computes the length of the minor axis needed for an ellipse of a certain shape and angle to intersect each of the other coordinates from a starting coordinate.

Usage

dist.ellipse(coords, shape, angle)

Arguments

coords

An \(N \times 2\) matrix of coordinates

shape

The ratio of the major axis to the minor axis of the ellipse

angle

The angle of the ellipse in the range [0, 180).

Value

A matrix of distances between each coordinate and all other coordinates (and itself). Each row contains the distances for a coordinate.

Examples

# NOT RUN {
data(nydf)
coords = as.matrix(nydf[,c("x", "y")])
d = dist.ellipse(coords, 4, 15)
# }