X1834

ZOSMA TRANSFORM OF X28

< A B C >: Reference Triangle △ABC < M_a M_b M_c >: Medial Triangle △M_a M_b M_c [ A B ]: Sideline AB (Base c = 1) [ B C ]: Sideline BC (Side a) [ C A ]: Sideline CA (Side b) { 2, 1043 }: Central Line L(2, 1043) { 4, 6 }: Van Aubel Line { 10, 37 }: Central Line L(10, 37) { 12, 42 }: Central Line L(12, 42) { 30, 58 }: Central Line L(30, 58) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) M_a = Midpoint M_a of BC (0.8061, 0.2999) M_b = Midpoint M_b of CA (0.3061, 0.2999) M_c = Midpoint M_c of AB (0.5000, 0.0000) X_2 = CENTROID (0.5374, 0.2000) X_1043 = CEVAPOINT OF X(1) AND X(20) (0.4149, 0.0930) X_4 = ORTHOCENTER (0.6122, 0.3958) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_37 = CROSSPOINT OF INCENTER AND CENTROID (0.5567, 0.2158) X_12 = {X(1),X(5)}-HARMONIC CONJUGATE OF X(11) (0.5641, 0.2407) X_42 = CROSSPOINT OF INCENTER AND SYMMEDIAN POINT (0.5880, 0.2495) X_30 = EULER INFINITY POINT (0.7469, 0.7481) X_58 = ISOGONAL CONJUGATE OF X(10) (0.6107, 0.2850) X_1834 = ZOSMA TRANSFORM OF X(28) (0.5987, 0.2534) A B C Ma Mb Mc X2 X1043 X4 X6 X10 X37 X12 X42 X30 X58 X1834 (a, b, c) = (5, 6, 7) | AB = 1

X1834 (ZOSMA TRANSFORM OF X28) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1834 = ZOSMA TRANSFORM OF X_28."""

        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,
            complement,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            orthocenter_of,
            promote_point_to_top,
            spieker_center_of,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01834(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1834 = ZOSMA TRANSFORM OF X_28 on reference triangle ABC."""
            X_1043 = eval_trilinear_point(model, A, B, C, '(1/((1 - cos(A))*(cos(B) + cos(C))))', ID="X_1043", classes=["center"])
            X_1834 = complement(model, A, B, C, X_1043, ID="X_1834", classes=["selected", "target"])
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            central_line(model, X_4, X_6, 4, 6, incident=True)
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
            X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
            central_line(model, X_10, X_37, 10, 37, incident=True)
            X_12 = eval_trilinear_point(model, A, B, C, '1 + cos(B - C)', ID="X_12", classes=["center", "incident"])
            X_42 = eval_trilinear_point(model, A, B, C, 'a*(b + c)', ID="X_42", classes=["center", "incident"])
            central_line(model, X_12, X_42, 12, 42, incident=True)
            return promote_point_to_top(model, X_1834)


        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_1834 on the given reference triangle."""
            model = create_model('X_1834 = ZOSMA TRANSFORM OF X_28')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01834(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-01834.json"))
            write_center_svg(
                model_acute,
                here / "x-01834.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )