Circumcenter: Computes the circumcenter of a given triangle, that is, the...

In LearnGeom: Learning Plane Geometry

Description

Circumcenter computes the center of a triangle

Usage

Circumcenter(Tri, lines = F)

Arguments

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

Value

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

References

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

Examples

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 <- Circumcenter(Tri, lines = TRUE)
Draw(I, "red")

Example output

[1] "Some of the inserted points are collinear. This could lead to a defective polygon."
NULL
NULL
NULL

LearnGeom documentation built on July 14, 2020, 5:06 p.m.