X307

ISOTOMIC CONJUGATE OF X29

< 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, 7 }: Centroid–Gergonne Line { 69, 73 }: Central Line L(69, 73) { 8, 253 }: Central Line L(8, 253) { 75, 225 }: Central Line L(75, 225) { 86, 283 }: Central Line L(86, 283) { 141, 241 }: Central Line L(141, 241) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_29 = CEVAPOINT OF INCENTER AND ORTHOCENTER (0.5903, 0.3384) X_2 = CENTROID (0.5374, 0.2000) X_7 = GERGONNE POINT (0.5903, 0.2769) X_69 = SYMMEDIAN POINT OF THE ANTICOMPLEMENTARY TRIANGLE (0.4122, 0.0654) X_73 = CROSSPOINT OF INCENTER AND CIRCUMCENTER (0.5487, 0.1428) X_8 = NAGEL POINT (0.4694, 0.1333) X_253 = -CROSS CONJUGATE OF X(2) (3.5087, 32.5688) X_75 = ISOTOMIC CONJUGATE OF INCENTER (0.4988, 0.1682) X_225 = -CEVA CONJUGATE OF X(65) (0.6246, 0.4451) X_86 = CEVAPOINT OF INCENTER AND CENTROID (0.5534, 0.2171) X_283 = -CROSS CONJUGATE OF X(21) (0.4475, 0.0704) X_141 = COMPLEMENT OF SYMMEDIAN POINT (0.5061, 0.1663) X_241 = -LINE CONJUGATE OF X(55) (1.1217, 1.2442) X_307 = ISOTOMIC CONJUGATE OF X(29) (0.4659, 0.0959) A B C X29 X2 X7 X69 X73 X8 X253 X75 X225 X86 X283 X141 X241 X307 (a, b, c) = (5, 6, 7) | AB = 1

X307 (ISOTOMIC CONJUGATE OF X29) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_307 = ISOTOMIC CONJUGATE OF X_29."""

        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,
            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_00307(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_307 = ISOTOMIC CONJUGATE OF X_29 on reference triangle ABC."""
            X_307 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)*(b + c)*(cos(A))/(b + c - a)', ID="X_307", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center", "incident"])
            central_line(model, X_2, X_7, 2, 7, incident=True)
            X_69 = eval_trilinear_point(model, A, B, C, '(cos(A))/a**(2)', ID="X_69", classes=["center", "incident"])
            X_73 = eval_trilinear_point(model, A, B, C, 'sec(B) + sec(C)', ID="X_73", classes=["center", "incident"])
            central_line(model, X_69, X_73, 69, 73, incident=True)
            X_8 = nagel_point_of(model, A, B, C, ID="X_8", classes=["center", "incident"])
            X_253 = eval_trilinear_point(model, A, B, C, '((csc(A))/(tan(B) + tan(C) - tan(A)))', ID="X_253", classes=["center", "incident"])
            central_line(model, X_8, X_253, 8, 253, incident=True)
            return promote_point_to_top(model, X_307)


        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_307 on the given reference triangle."""
            model = create_model('X_307 = ISOTOMIC CONJUGATE OF X_29')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00307(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-00307.json"))
            write_center_svg(
                model_acute,
                here / "x-00307.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )