polyintern: Internal point of polygon

Description Usage Arguments Details Value Author(s) See Also Examples

View source: R/polyintern.R

Description

Find a central internal point of a polygon

Usage

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polyintern(P, n = 10, PLOT=FALSE)

Arguments

P

Polygon,xy

n

grid dimension over polygon, n by n

PLOT

logical, TRUE=plot

Details

A grid is laid over the polygo, the internal points are extracted and for each one the shortest distance to te perimeter is determined. Then the point with the largest distance is returned.

Value

x

x coordinate of point

y

y coordinate of point

zi

index of point

nx

internal grid points x

ny

internal grid points y

ef

internal grid points distances to perimeter

Author(s)

Jonathan M. Lees<jonathan.lees@unc.edu>

See Also

pline

Examples

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X=list()
X$x=c(11.991,11.942,11.891,11.834,11.775,11.725,11.691,
    11.712,11.746,11.804,11.865,11.957,11.991)
X$y=c(-2.0091,-2.0699,-2.0823,-2.1091,-2.1419,
    -2.1394,-2.1165,-2.0604,-2.0196,-1.9847,-1.9668,-1.9777,-2.0091)


polyintern(X, n = 10, PLOT=TRUE)

GEOmap documentation built on May 30, 2017, 3:58 a.m.