imager: nfline – R documentation

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nfline

Plot a line, Hesse normal form parameterisation

Description

This is a simple interface over abline meant to be used along with the Hough transform. In the Hesse normal form (theta,rho), a line is represented as the set of values (x,y) such that cos(theta)*x + sin(theta)*y = rho. Here theta is an angle and rho is a distance. See the documentation for hough_lines.

Usage

nfline(theta, rho, col, ...)

Arguments

`theta`	angle (radians)
`rho`	distance
`col`	colour
`...`	other graphical parameters, passed along to abline

Value

nothing

Author(s)

Simon Barthelme

Examples

#Boring example, see ?hough_lines
plot(boats)
nfline(theta=0,rho=10,col="red")

imager

Image Processing Library Based on 'CImg'

v0.42.10

LGPL-3

Authors

Simon Barthelme [aut], David Tschumperle [ctb], Jan Wijffels [ctb], Haz Edine Assemlal [ctb], Shota Ochi [cre]

Initial release