getMinBBox: Minimum-Area Bounding Box For A Set Of 2D-Points

In ISAAKiel/shapAAR:

Description

Calculates the vertices of the minimum-area, possibly oriented bounding box given a set of 2D-coordinates. Adapted from shotGroups package.

Usage

getMinBBox(xy)

Arguments

xy	either a numerical (n x 2)-matrix with the (x,y)-coordinates of n >= 2 points (1 row of coordinates per point), or a data frame with either the variables x, y or point.x, point.y.

Value

A list with the following information about the minimum-area bounding box:

pts	a (4 x 2)-matrix containing the coordinates of the (ordered) vertices.
width	width of the box.
height	height of the box.
FoM	figure of merit, i.e., the average side length of the box: (width + height) / 2.
diag	length of box diagonal.
angle	orientation of the box' longer edge pointing up as returned by atan2, but in degree.

ISAAKiel/shapAAR documentation built on July 9, 2020, 4:05 a.m.