tlines: Move Lines
In ablejec/animatoR: Support for Animated Graphics in Base R Graphics

Description Usage Arguments Value Author(s) See Also Examples

View source: R/animatoR-functions-knitr.R

Move lines from start to end location

1	tlines(x0, y0, x1, y1, t, p = 1, when, ...)

`x0`	numeric vector, start x coordinates.
`y0`	numeric vector, start y coordinates.
`x1`	numeric vector, end x coordinates.
`y1`	numeric vector, end y coordinates.
`t`	numeric, homotopy parameter, limited between 0 and 1. This parameter can be considered as fraction of animation duration time.
`p`	numeric, homotopy power parameter. Defaults to 1.
`when`	numeric vector. This parameter controls the times of: entrance, exit, start of movement and, end of movement.
`...`	additional arguments passed to `lines`.

List with numerical components x and y with current position

Andrej Blejec andrej.blejec@nib.si

lines

x0 <- c(0,5,10)
y0 <- c(0,10,0)
x1 <- c(10,5,0)
y1 <- c(10,0,10)
newplot()
pos <- tlines(x0,y0,x1,y1,0.25)
points(pos)
#############
par(mfrow=c(2,2))
for( t in seq(0,1,1/3)) {
newplot()
tlines(x0,y0,x1,y1,t)
points(x0,y0,pch="0")
points(x1,y1,pch="1")
}