Incenter: Computes the incenter of a given triangle
In LearnGeom: Learning Plane Geometry

Description Usage Arguments Value References Examples

Incenter computes the center of a triangle

1	Incenter(Tri, lines = F)

`Tri`	Triangle object, previously created with function `CreatePolygon`
`lines`	Boolean. When `lines` = `TRUE`, the plot displays the lines that bisect each of the angles of the triangle. If missing, it works as with `lines` = `FALSE`, so the lines are not displayed

Vector which contains the xy-coordinates of the incenter of the triangle

http://mathworld.wolfram.com/Incenter.html

P1 <- c(0,0)
P2 <- c(1,1)
P3 <- c(2,0) 
Tri <- CreatePolygon(P1, P2, P3)
x_min <- -5
x_max <- 5
y_min <- -5
y_max <- 5
CoordinatePlane(x_min, x_max, y_min, y_max)
Draw(Tri, "transparent")
I <- Incenter(Tri, lines = TRUE)
Draw(I, "red")