X1843

ZOSMA TRANSFORM OF X75

< 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) { 6, 25 }: Central Line L(6, 25) { 4, 69 }: Central Line L(4, 69) { 24, 182 }: Central Line L(24, 182) { 216, 237 }: Central Line L(216, 237) { 141, 427 }: Central Line L(141, 427) { 263, 393 }: Central Line L(263, 393) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1799 = INVERSE MIMOSA TRANSFORM OF X(75) (0.4477, 0.0833) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_25 = HOMOTHETIC CENTER OF ORTHIC AND TANGENTIAL TRIANGLES (0.6329, 0.4497) X_4 = ORTHOCENTER (0.6122, 0.3958) X_69 = SYMMEDIAN POINT OF THE ANTICOMPLEMENTARY TRIANGLE (0.4122, 0.0654) X_24 = PERSPECTOR OF ABC AND ORTHIC-OF-ORTHIC TRIANGLE (0.6627, 0.5278) X_182 = MIDPOINT OF BROCARD DIAMETER (0.5500, 0.1846) X_216 = -CEVA CONJUGATE OF X(51) (0.5201, 0.1353) X_237 = -LINE CONJUGATE OF X(2) (0.9894, 1.3825) X_141 = COMPLEMENT OF SYMMEDIAN POINT (0.5061, 0.1663) X_427 = COMPLEMENT OF X(22) (0.5990, 0.3610) X_263 = ISOGONAL CONJUGATE OF X(183) (0.6298, 0.3525) X_393 = -CROSS CONJUGATE OF X(4) (0.6247, 0.5263) X_1843 = ZOSMA TRANSFORM OF X(75) (0.6278, 0.4214) A B C X1799 X6 X25 X4 X69 X24 X182 X216 X237 X141 X427 X263 X393 X1843 (a, b, c) = (5, 6, 7) | AB = 1

X1843 (ZOSMA TRANSFORM OF X75) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1843 = ZOSMA TRANSFORM OF X_75."""

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


        def construct_x_01843(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1843 = ZOSMA TRANSFORM OF X_75 on reference triangle ABC."""
            X_1799 = eval_trilinear_point(model, A, B, C, 'cot(A)*csc(A +  omega  )', ID="X_1799", classes=["center"])
            X_1843 = isogonal_conjugate(model, A, B, C, X_1799, ID="X_1843", classes=["selected", "target"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            X_25 = eval_trilinear_point(model, A, B, C, 'sin(A)*tan(A)', ID="X_25", classes=["center", "incident"])
            central_line(model, X_6, X_25, 6, 25, incident=True)
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_69 = eval_trilinear_point(model, A, B, C, '(cos(A))/a**(2)', ID="X_69", classes=["center", "incident"])
            central_line(model, X_4, X_69, 4, 69, incident=True)
            X_24 = eval_trilinear_point(model, A, B, C, 'sec(A)*cos(2*A)', ID="X_24", classes=["center", "incident"])
            X_182 = eval_trilinear_point(model, A, B, C, 'cos(A-  omega  )', ID="X_182", classes=["center", "incident"])
            central_line(model, X_24, X_182, 24, 182, incident=True)
            return promote_point_to_top(model, X_1843)


        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_1843 on the given reference triangle."""
            model = create_model('X_1843 = ZOSMA TRANSFORM OF X_75')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01843(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-01843.json"))
            write_center_svg(
                model_acute,
                here / "x-01843.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )