X1296

COLLINGS TRANSFORM OF X126

< 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, 111 }: Central Line L(3, 111) { 4, 126 }: Central Line L(4, 126) { 98, 376 }: Central Line L(98, 376) { 182, 729 }: Central Line L(182, 729) { 511, 843 }: Central Line L(511, 843) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1499 = POINT BIHAM (0.1078, 0.5997) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_111 = PARRY POINT (0.9885, -0.0457) X_4 = ORTHOCENTER (0.6122, 0.3958) X_126 = -OF-MEDIAL-TRIANGLE (0.3119, 0.3228) X_98 = TARRY POINT (0.8891, -0.2281) X_376 = CENTROID OF THE ANTIPEDAL TRIANGLE OF X(2) (0.4626, 0.0042) X_182 = MIDPOINT OF BROCARD DIAMETER (0.5500, 0.1846) X_729 = EVEN (- 2, 0) CIRCUMCIRCLE POINT (1.0096, 0.1290) X_511 = ISOGONAL CONJUGATE OF X(98) (0.2335, -0.3020) X_843 = ISOGONAL CONJUGATE OF X(543) (0.2520, 0.4188) X_1296 = COLLINGS TRANSFORM OF X(126) (0.0115, 0.2498) A B C X1499 X3 X111 X4 X126 X98 X376 X182 X729 X511 X843 X1296 (a, b, c) = (5, 6, 7) | AB = 1

X1296 (COLLINGS TRANSFORM OF X126) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1296 = COLLINGS TRANSFORM OF X_126."""

        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,
            circumcenter_of,
            construct_baseline_triangle,
            create_model,
            eval_barycentric_point,
            eval_trilinear_point,
            orthocenter_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01296(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1296 = COLLINGS TRANSFORM OF X_126 on reference triangle ABC."""
            X_1296 = eval_barycentric_point(model, A, B, C, 'a**(2)/((b**(2) - c**(2))*(5*a**(2) - b**(2) - c**(2)))', ID="X_1296", classes=["selected", "target"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
            X_111 = eval_trilinear_point(model, A, B, C, 'a/(2*a**(2) - b**(2) - c**(2))', ID="X_111", classes=["center", "incident"])
            central_line(model, X_3, X_111, 3, 111, incident=True)
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_126 = eval_trilinear_point(model, A, B, C, '(b*c*(2*a**(2) - b**(2) - c**(2))*(b**(4) + c**(4) + a**(2)*(b**(2) + c**(2)) - 4*b**(2)*c**(2)))', ID="X_126", classes=["center", "incident"])
            central_line(model, X_4, X_126, 4, 126, incident=True)
            X_98 = eval_trilinear_point(model, A, B, C, 'sec(A +  omega  )', ID="X_98", classes=["center", "incident"])
            X_376 = eval_trilinear_point(model, A, B, C, '5*cos(A) - cos(B - C)', ID="X_376", classes=["center", "incident"])
            central_line(model, X_98, X_376, 98, 376, incident=True)
            return promote_point_to_top(model, X_1296)


        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_1296 on the given reference triangle."""
            model = create_model('X_1296 = COLLINGS TRANSFORM OF X_126')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01296(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-01296.json"))
            write_center_svg(
                model_acute,
                here / "x-01296.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )