X322

ISOTOMIC CONJUGATE OF X84

< 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) { 7, 8 }: Gergonne–Nagel Line { 78, 273 }: Central Line L(78, 273) { 92, 264 }: Central Line L(92, 264) { 304, 309 }: Central Line L(304, 309) { 227, 347 }: Central Line L(227, 347) { 253, 341 }: Central Line L(253, 341) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_84 = ISOGONAL CONJUGATE OF X(40) (0.6071, 0.6816) X_7 = GERGONNE POINT (0.5903, 0.2769) X_8 = NAGEL POINT (0.4694, 0.1333) X_78 = ISOGONAL CONJUGATE OF X(34) (0.3835, 0.0491) X_273 = ISOGONAL CONJUGATE OF X(212) (0.6191, 0.4329) X_92 = CEVAPOINT OF INCENTER AND CLAWSON POINT (0.5949, 0.3639) X_264 = ISOTOMIC CONJUGATE OF CIRCUMCENTER (0.5720, 0.3293) X_304 = ISOTOMIC CONJUGATE OF X(19) (0.3683, 0.0513) X_309 = ISOTOMIC CONJUGATE OF X(40) (0.6237, 0.7391) X_227 = -CEVA CONJUGATE OF X(65) (0.4792, -0.0460) X_347 = ISOTOMIC CONJUGATE OF X(280) (0.4531, -0.0404) X_253 = -CROSS CONJUGATE OF X(2) (3.5087, 32.5688) X_341 = ISOTOMIC CONJUGATE OF X(269) (0.3509, 0.0650) X_322 = ISOTOMIC CONJUGATE OF X(84) (0.3430, -0.0168) A B C X84 X7 X8 X78 X273 X92 X264 X304 X309 X227 X347 X253 X341 X322 (a, b, c) = (5, 6, 7) | AB = 1

X322 (ISOTOMIC CONJUGATE OF X84) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_322 = ISOTOMIC CONJUGATE OF X_84."""

        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,
            gergonne_point_of,
            nagel_point_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_00322(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_322 = ISOTOMIC CONJUGATE OF X_84 on reference triangle ABC."""
            X_322 = eval_trilinear_point(model, A, B, C, '((-1 - cos(A) + cos(B) + cos(C))*(csc(A))**(2))', ID="X_322", classes=["selected", "target"])
            X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center", "incident"])
            X_8 = nagel_point_of(model, A, B, C, ID="X_8", classes=["center", "incident"])
            central_line(model, X_7, X_8, 7, 8, incident=True)
            X_78 = eval_trilinear_point(model, A, B, C, '1/(1 - sec(A))', ID="X_78", classes=["center", "incident"])
            X_273 = eval_trilinear_point(model, A, B, C, 'sec(A)*(sec(A/2))**(2)', ID="X_273", classes=["center", "incident"])
            central_line(model, X_78, X_273, 78, 273, incident=True)
            X_92 = eval_trilinear_point(model, A, B, C, 'csc(2*A)', ID="X_92", 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_92, X_264, 92, 264, incident=True)
            return promote_point_to_top(model, X_322)


        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_322 on the given reference triangle."""
            model = create_model('X_322 = ISOTOMIC CONJUGATE OF X_84')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00322(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-00322.json"))
            write_center_svg(
                model_acute,
                here / "x-00322.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )