X458

EULER LINE INTERCEPT OF LINE X76X_275

X458 = inverse-in-orthocentroidal-circle of X297
< 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) { 2, 3 }: Euler Line { 6, 264 }: Central Line L(6, 264) { 76, 275 }: Central Line L(76, 275) { 141, 317 }: Central Line L(141, 317) { 239, 318 }: Central Line L(239, 318) { 315, 343 }: Central Line L(315, 343) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2 = CENTROID (0.5374, 0.2000) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_4 = ORTHOCENTER (0.6122, 0.3958) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_264 = ISOTOMIC CONJUGATE OF CIRCUMCENTER (0.5720, 0.3293) X_76 = 3rd BROCARD POINT (0.4567, 0.1388) X_275 = CEVAPOINT OF ORTHOCENTER AND SYMMEDIAN POINT (0.6057, 0.3473) X_141 = COMPLEMENT OF SYMMEDIAN POINT (0.5061, 0.1663) X_317 = ISOTOMIC CONJUGATE OF X(68) (0.6796, 0.5070) X_239 = -LINE CONJUGATE OF X(42) (4.2109, 3.7992) X_318 = ISOTOMIC CONJUGATE OF X(77) (0.5514, 0.2839) X_315 = ISOTOMIC CONJUGATE OF X(66) (0.3323, -0.0666) X_343 = ISOTOMIC CONJUGATE OF X(275) (0.4345, 0.0893) X_458 = EULER LINE INTERCEPT OF LINE X(76)X(275) (0.5800, 0.3115) A B C X2 X3 X4 X6 X264 X76 X275 X141 X317 X239 X318 X315 X343 X458 (a, b, c) = (5, 6, 7) | AB = 1

X458 (EULER LINE INTERCEPT OF LINE X76X_275) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_458 = EULER LINE INTERCEPT OF LINE X_76X_275."""

        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,
            centroid_of,
            circumcenter_of,
            construct_baseline_triangle,
            create_model,
            eval_barycentric_point,
            eval_trilinear_point,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_00458(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_458 = EULER LINE INTERCEPT OF LINE X_76X_275 on reference triangle ABC."""
            X_458 = eval_barycentric_point(model, A, B, C, 'tan(A) + cot(omega) ', ID="X_458", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            central_line(model, X_2, X_3, 2, 3)
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            X_264 = eval_trilinear_point(model, A, B, C, 'csc(A)*csc(2*A)', ID="X_264", classes=["center", "incident"])
            central_line(model, X_6, X_264, 6, 264, incident=True)
            X_76 = eval_trilinear_point(model, A, B, C, '1/a**(3)', ID="X_76", classes=["center", "incident"])
            X_275 = eval_trilinear_point(model, A, B, C, 'csc(2*A)*sec(B - C)', ID="X_275", classes=["center", "incident"])
            central_line(model, X_76, X_275, 76, 275, incident=True)
            return promote_point_to_top(model, X_458)


        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_458 on the given reference triangle."""
            model = create_model('X_458 = EULER LINE INTERCEPT OF LINE X_76X_275')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00458(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-00458.json"))
            write_center_svg(
                model_acute,
                here / "x-00458.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )