X2753

SR(X105, X111)

< 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) { 105, 524 }: Central Line L(105, 524) { 111, 518 }: Central Line L(111, 518) { 352, 739 }: Central Line L(352, 739) { 1292, 1499 }: Central Line L(1292, 1499) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2837 = ISOGONAL CONJUGATE OF X(2753) (0.3399, -0.3527) X_105 = Λ(INCENTER, SYMMEDIAN POINT) (0.9714, -0.0933) X_524 = ISOGONAL CONJUGATE OF X(111) (0.1376, -0.2297) X_111 = PARRY POINT (0.9885, -0.0457) X_518 = ISOGONAL CONJUGATE OF X(105) (0.9154, 0.6489) X_352 = INVERSE-IN-CIRCUMCIRCLE OF X(353) (2.2545, 2.0453) X_739 = EVEN (- 1, 0) CIRCUMCIRCLE POINT (1.0101, 0.0884) X_1292 = COLLINGS TRANSFORM OF X(55) (0.0286, 0.2974) X_1499 = POINT BIHAM (0.1078, 0.5997) X_2753 = SR(X(105), X(111)) (0.7288, -0.3541) A B C X2837 X105 X524 X111 X518 X352 X739 X1292 X1499 X2753 (a, b, c) = (5, 6, 7) | AB = 1

X2753 (SR(X105, X111)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2753 = SR(X_105, X_111)."""

        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,
            intersect_lines,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02753(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2753 = SR(X_105, X_111) on reference triangle ABC."""
            X_105 = eval_trilinear_point(model, A, B, C, '1/(b**(2) + c**(2) - a*(b + c))', ID="X_105", classes=["center"])
            X_524 = eval_trilinear_point(model, A, B, C, '(2*a**(2) - b**(2) - c**(2))/a', ID="X_524", classes=["center"])
            X_111 = eval_trilinear_point(model, A, B, C, 'a/(2*a**(2) - b**(2) - c**(2))', ID="X_111", classes=["center"])
            X_518 = eval_trilinear_point(model, A, B, C, '(a*b + a*c - b**(2) - c**(2))', ID="X_518", classes=["center"])
            central_line(model, X_105, X_524, 105, 524)
            central_line(model, X_111, X_518, 111, 518)
            X_2753 = intersect_lines(model, X_105, X_524, X_111, X_518, ID="X_2753", classes=["selected", "target"])
            X_352 = eval_trilinear_point(model, A, B, C, '(a*(-a**(4) - b**(4) - c**(4) - 5*b**(2)*c**(2) + 4*a**(2)*b**(2) + 4*a**(2)*c**(2)))', ID="X_352", classes=["center", "incident"])
            X_739 = eval_trilinear_point(model, A, B, C, '1/(a**(-2)*(b**(0) + c**(0)) - a **(-1)*(b **(-1) + c **(-1)))', ID="X_739", classes=["center", "incident"])
            central_line(model, X_352, X_739, 352, 739, incident=True)
            return promote_point_to_top(model, X_2753)


        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_2753 on the given reference triangle."""
            model = create_model('X_2753 = SR(X_105, X_111)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02753(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-02753.json"))
            write_center_svg(
                model_acute,
                here / "x-02753.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )