orientation: Signed orientation

In mathphysmx/percolation: Continuum percolation of Poisson sticks

Description

Signed orientation

Usage

orientation(p, q, r)

Arguments

p	Numeric two-dimensional vector in cartesian coordinates.
q	Numeric two-dimensional vector in cartesian coordinates.
r	Numeric two-dimensional vector in cartesian coordinates.

Details

This function determines the orientation of three points in a plane. Since these points are assumed to come from a random point process, the colinearity case is not considered, since the probability of this eventuality is certainly zero.

Value

Eihter 1 (positive orientation) or -1 (negative orientation).

Author(s)

Daniella Ayala ([e-mail]) and Francisco Mendoza-Torres ([e-mail])

Examples

orientation(p=c(0,0), q=c(-1,0), r=c(0,1))
orientation(p=c(0,0), q=c( 1,0), r=c(0,1))

mathphysmx/percolation documentation built on Aug. 14, 2019, 2:03 a.m.