Description Usage Arguments Value Author(s) See Also Examples
View source: R/animatoR-functions-knitr.R
Draw segments from (x_0,y_0) to (x_1,y_1). The effect is like starting from a point and draw a line.
1 |
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. |
when |
numeric vector. This parameter controls the times of: entrance, exit, start of movement and, end of movement. |
p |
numeric, homotopy power parameter. Defaults to 1. |
... |
additional arguments passed to |
List with numerical components x
and y
giving
current position.
Andrej Blejec andrej.blejec@nib.si
segments
, tsegments
for moving segments and darrows
for drawing arrows.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | x0 <- c(0,5,10)
y0 <- c(0,10,0)
x1 <- c(10,5,0)
y1 <- c(10,0,10)
newplot()
pos <- dsegments(x0,y0,x1,y1,0.25)
points(pos)
## Lines from 0 to 1
par(mfrow=c(2,2))
for( t in seq(0,1,1/3)) {
newplot()
dsegments(x0,y0,x1,y1,t)
points(x0,y0,pch="0")
points(x1,y1,pch="1")
}
## Reverse: from 1 to 0
par(mfrow=c(2,2))
for( t in seq(0,1,1/3)) {
newplot()
dsegments(x1,y1,x0,y0,t)
points(x0,y0,pch="0")
points(x1,y1,pch="1")
}
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