rotate: Roate a (x,y) with an Angle.

In happynotes/RoundAndRound: Plot Objects Moving in Orbits

Description

Roate a (x,y) with an Angle.

Usage

rotate(x, theta, orig = c(0, 0))

Arguments

x	Coordinate (x,y)
theta	An angle (degree)
orig	Pivot of rotation

Value

Rotated (x,y)

Examples

plot(PCS2CCS(a=2), asp=1)
grid()
x=rbind(c(1,1))
for(i in 1:12){
  points(rotate(x, 30*i, orig=c(1,0)))
}

happynotes/RoundAndRound documentation built on Jan. 31, 2020, 12:05 p.m.