X2836

ISOGONAL CONJUGATE OF X2752

< 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) { 67, 72 }: Central Line L(67, 72) { 81, 105 }: Central Line L(81, 105) { 120, 125 }: Central Line L(120, 125) { 30, 511 }: Central Line L(30, 511) { 65, 651 }: Central Line L(65, 651) { 74, 1292 }: Central Line L(74, 1292) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2752 = SR(X(105), X(110)) (0.0184, 0.2709) X_67 = ISOGONAL CONJUGATE OF X(23) (0.7606, -0.2152) X_72 = ISOGONAL CONJUGATE OF X(28) (0.4367, 0.0733) X_81 = CEVAPOINT OF INCENTER AND SYMMEDIAN POINT (0.5849, 0.2510) X_105 = Λ(INCENTER, SYMMEDIAN POINT) (0.9714, -0.0933) X_120 = -OF-MEDIAL-TRIANGLE (0.3204, 0.3466) X_125 = CENTER OF JERABEK HYPERBOLA (0.6803, 0.0260) X_30 = EULER INFINITY POINT (0.7469, 0.7481) X_511 = ISOGONAL CONJUGATE OF X(98) (0.2335, -0.3020) X_65 = ORTHOCENTER OF THE INTOUCH TRIANGLE (0.6041, 0.2933) X_651 = TRILINEAR POLE OF LINE X(1)X(3) (0.3048, 0.5599) X_74 = ISOGONAL CONJUGATE OF EULER INFINITY POINT (0.7484, -0.3437) X_1292 = COLLINGS TRANSFORM OF X(55) (0.0286, 0.2974) X_2836 = ISOGONAL CONJUGATE OF X(2752) (0.0992, 0.5903) A B C X2752 X67 X72 X81 X105 X120 X125 X30 X511 X65 X651 X74 X1292 X2836 (a, b, c) = (5, 6, 7) | AB = 1

X2836 (ISOGONAL CONJUGATE OF X2752) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2836 = ISOGONAL CONJUGATE OF X_2752."""

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


        def construct_x_02836(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2836 = ISOGONAL CONJUGATE OF X_2752 on reference triangle ABC."""
            X_2752 = point_from_barycentrics(model, A, B, C, 0.80645161, -0.25806452, 0.4516129, ID="X_2752", classes=["center"])
            X_2836 = isogonal_conjugate(model, A, B, C, X_2752, ID="X_2836", classes=["selected", "target"])
            X_67 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(4) + c**(4) - a**(4) - b**(2)*c**(2))', ID="X_67", classes=["center", "incident"])
            X_72 = eval_trilinear_point(model, A, B, C, '(b + c)*cot(A)', ID="X_72", classes=["center", "incident"])
            central_line(model, X_67, X_72, 67, 72, incident=True)
            X_81 = eval_trilinear_point(model, A, B, C, '1/(b + c)', ID="X_81", classes=["center", "incident"])
            X_105 = eval_trilinear_point(model, A, B, C, '1/(b**(2) + c**(2) - a*(b + c))', ID="X_105", classes=["center", "incident"])
            central_line(model, X_81, X_105, 81, 105, incident=True)
            X_120 = eval_trilinear_point(model, A, B, C, 'b*c*(2*a*b*c - (b + c)*(a**(2) + (b - c)**(2)))*(b**(2) + c**(2) - a*b -a*c)', ID="X_120", classes=["center", "incident"])
            X_125 = eval_trilinear_point(model, A, B, C, 'cos(A)*(sin(B - C))**(2)', ID="X_125", classes=["center", "incident"])
            central_line(model, X_120, X_125, 120, 125, incident=True)
            return promote_point_to_top(model, X_2836)


        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_2836 on the given reference triangle."""
            model = create_model('X_2836 = ISOGONAL CONJUGATE OF X_2752')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02836(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-02836.json"))
            write_center_svg(
                model_acute,
                here / "x-02836.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )