PlaneGeometry (version 1.6.0)

EllipseFromEquation: Ellipse from its implicit equation

Description

Return an ellipse from the coefficients of its implicit equation.

Usage

EllipseFromEquation(A, B, C, D, E, F)

Value

An Ellipse object.

Arguments

A, B, C, D, E, F

the coefficients of the equation

Details

The implicit equation of the ellipse is Ax² + Bxy + Cy² + Dx + Ey + F = 0. This function returns the ellipse given A, B, C, D, E and F.

Examples

ell <- Ellipse$new(c(2,3), 5, 4, 30)
cf <- ell$equation()
ell2 <- EllipseFromEquation(cf[1], cf[2], cf[3], cf[4], cf[5], cf[6])
ell$isEqual(ell2)