X2520

RADICAL CENTER OF {CIRCUMCIRCLE, INCIRCLE, TAYLOR CIRCLE}

< A B C >: Reference Triangle △ABC [ A B ]: Sideline AB (Base c = 1) [ B C ]: Sideline BC (Side a) [ C A ]: Sideline CA (Side b) { 460, 512 }: Central Line L(460, 512) { 513, 676 }: Central Line L(513, 676) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_460 = POINT ANTARES (0.6881, 0.5944) X_512 = ISOGONAL CONJUGATE OF X(99) (1.0394, -0.1040) X_513 = ISOGONAL CONJUGATE OF X(100) (1.0529, -0.0806) X_676 = CROSSDIFFERENCE OF X(3) AND X(101) (1.2449, 0.5665) X_2520 = RADICAL CENTER OF {CIRCUMCIRCLE, INCIRCLE, TAYLOR CIRCLE} (-3.8122, 3.3193) A B C X460 X512 X513 X676 X2520 (a, b, c) = (5, 6, 7) | AB = 1

X2520 (RADICAL CENTER OF {CIRCUMCIRCLE, INCIRCLE, TAYLOR CIRCLE}) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2520 = RADICAL CENTER OF {CIRCUMCIRCLE, INCIRCLE, TAYLOR CIRCLE}."""

        from __future__ import annotations

        from pathlib import Path

        import sympy.geometry as spg
        from geometor.model import Model

        from geometor.etc.ops import (
            central_line,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02520(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2520 = RADICAL CENTER OF {CIRCUMCIRCLE, INCIRCLE, TAYLOR CIRCLE} on reference triangle ABC."""
            X_2520 = eval_trilinear_point(model, A, B, C, '((b - c)*(b + c - a)*(a**(3) - (b + c)*(b - c)**(2)))', ID="X_2520", classes=["selected", "target"])
            X_460 = eval_trilinear_point(model, A, B, C, '(sec(A))*(a**(2)*(2*a**(2) - b**(2) - c**(2)) + (b**(2) - c**(2))**(2))', ID="X_460", classes=["center", "incident"])
            X_512 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) - c**(2))', ID="X_512", classes=["center", "incident"])
            central_line(model, X_460, X_512, 460, 512, incident=True)
            X_513 = eval_trilinear_point(model, A, B, C, 'b - c', ID="X_513", classes=["center", "incident"])
            X_676 = eval_trilinear_point(model, A, B, C, '(b*c*(b - c)*(b**(3) + c**(3) - 2*a**(3) + (b + c)*(a**(2) - b*c)))', ID="X_676", classes=["center", "incident"])
            central_line(model, X_513, X_676, 513, 676, incident=True)
            return promote_point_to_top(model, X_2520)


        def build_model(
            sides: tuple[float, float, float] = (5.0, 6.0, 7.0),
            show_guides: bool = False,
        ) -> Model:
            """Build a `geometor.model.Model` for X_2520 on the given reference triangle."""
            model = create_model('X_2520 = RADICAL CENTER OF {CIRCUMCIRCLE, INCIRCLE, TAYLOR CIRCLE}')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02520(model, A, B, C)
            return model


        if __name__ == "__main__":
            here = Path(__file__).resolve().parent
            model_acute = build_model((5.0, 6.0, 7.0))
            model_acute.save(str(here / "x-02520.json"))
            write_center_svg(
                model_acute,
                here / "x-02520.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )