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Elementary Definitions

    Point

    PlaneGeometry.Point — Type
    Point(x, y)

    A point at coordinate (x, y).

    Examples

    A = Point(0,0); B = Point(1, 3); C = Point(4,2)
    source

    Picture

    A = Point(0,0); B = Point(1, 3); C = Point(4,2)
scatter(shape([A, B, C]), leg=false, aspect_ratio=:equal,
    color=:red, series_annotations = text.(["A", "B", "C"], :bottom))

    Edge

    PlaneGeometry.Edge — Type
    Edge(src, dst)

    An edge from point src to point dst.

    Examples

    e = Edge(Point(0, 0), Point(1, 3))
    source

    Picture

    plot(shape(Edge(A, B)), leg=false)
scatter!(shape([A,B]), leg=false, aspect_ratio=:equal,
    color=:red, series_annotations = text.(["A", "B"], :bottom))

    Triangle

    PlaneGeometry.Triangle — Type
    Triangle(A, B, C)

    A triangle with vertices A, B, C.

    Examples

    A = Point(0,0); B = Point(1, 3); C = Point(4,2)
tri = Triangle(A, B, C)
    source

    Picture

    tri = Triangle(A, B, C)
plot(tri, leg=false, fill=(0, :green), aspect_ratio=:equal, fillalpha= 0.2)
scatter!(shape([A, B, C]), leg=false,
    color=:red, series_annotations = text.(["A", "B", "C"], :bottom))

    Circle

    Picture

    c = Circle(A, 1)
plot(c, leg=false, fill=(0, :red),
    aspect_ratio=:equal, fillalpha= 0.2)
scatter!(shape([A]), leg=false, color=:red,
    series_annotations = text.(["A"], :bottom))