X2674

ISOGONAL CONJUGATE OF X2672

< 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) { 3, 6 }: Brocard Axis { 2, 2671 }: Central Line L(2, 2671) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2672 = 2nd GOLDEN ARBELOS POINT (0.3508, 0.0923) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_2 = CENTROID (0.5374, 0.2000) X_2671 = 1st GOLDEN ARBELOS POINT (0.5720, 0.2475) X_2674 = ISOGONAL CONJUGATE OF X(2672) (0.6690, 0.3812) A B C X2672 X3 X6 X2 X2671 X2674 (a, b, c) = (5, 6, 7) | AB = 1

X2674 (ISOGONAL CONJUGATE OF X2672) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2674 = ISOGONAL CONJUGATE OF X_2672."""

        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_trilinear_point,
            isogonal_conjugate,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02674(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2674 = ISOGONAL CONJUGATE OF X_2672 on reference triangle ABC."""
            X_2672 = eval_trilinear_point(model, A, B, C, 'sec(A + a*r*c*cot(3 - 5**(1/2)))', ID="X_2672", classes=["center"])
            X_2674 = isogonal_conjugate(model, A, B, C, X_2672, ID="X_2674", classes=["selected", "target"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            central_line(model, X_3, X_6, 3, 6, incident=True)
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_2671 = eval_trilinear_point(model, A, B, C, 'sec(A - a*r*c*cot(3 - 5**(1/2)))', ID="X_2671", classes=["center", "incident"])
            central_line(model, X_2, X_2671, 2, 2671, incident=True)
            return promote_point_to_top(model, X_2674)


        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_2674 on the given reference triangle."""
            model = create_model('X_2674 = ISOGONAL CONJUGATE OF X_2672')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02674(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-02674.json"))
            write_center_svg(
                model_acute,
                here / "x-02674.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )