This is an internal function used to generate the ellipse parameters that
was used by the generate_ellipse_path() function.
It returns a list encompassing 3 lists.
Each list consists of the x0, y0, long-arm, short-arm, and angle default values
for generating 2, 3, or 4 ellipses.
Examples
ellipse_position()
#> [[1]]
#> [[1]]$e1
#> x0 y0 a b angle
#> -0.45 0.00 1.00 1.00 0.00
#>
#> [[1]]$e2
#> x0 y0 a b angle
#> 0.45 0.00 1.00 1.00 0.00
#>
#>
#> [[2]]
#> [[2]]$e1
#> x0 y0 a b angle
#> 0.00 0.45 1.00 1.00 0.00
#>
#> [[2]]$e2
#> x0 y0 a b angle
#> -0.45 -0.45 1.00 1.00 0.00
#>
#> [[2]]$e3
#> x0 y0 a b angle
#> 0.45 -0.45 1.00 1.00 0.00
#>
#>
#> [[3]]
#> [[3]]$e1
#> x0 y0 a b angle
#> -1.090 -0.569 2.500 1.350 -45.000
#>
#> [[3]]$e2
#> x0 y0 a b angle
#> 0.0 0.0 2.5 1.2 -50.0
#>
#> [[3]]$e3
#> x0 y0 a b angle
#> 0.0 0.0 2.5 1.2 50.0
#>
#> [[3]]$e4
#> x0 y0 a b angle
#> 1.090 -0.569 2.500 1.350 45.000
#>
#>