X525

ISOGONAL CONJUGATE OF X112

As the isogonal conjugate of a point on the circumcircle, X525 lies on the line at infinity.
< 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) { 99, 249 }: Central Line L(99, 249) { 30, 511 }: Central Line L(30, 511) { 323, 401 }: Central Line L(323, 401) { 3, 878 }: Central Line L(3, 878) { 110, 935 }: Central Line L(110, 935) { 441, 647 }: Central Line L(441, 647) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_112 = Ψ(ORTHOCENTER, SYMMEDIAN POINT) (0.5162, 0.6121) X_99 = STEINER POINT (0.1109, 0.4322) X_249 = ISOGONAL CONJUGATE OF X(115) (0.5045, 0.3948) X_30 = EULER INFINITY POINT (0.7469, 0.7481) X_511 = ISOGONAL CONJUGATE OF X(98) (0.2335, -0.3020) X_323 = ISOTOMIC CONJUGATE OF X(94) (-0.8839, -1.3275) X_401 = BAILEY POINT (-0.0758, -1.4044) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_878 = ISOGONAL CONJUGATE OF X(877) (1.1192, 0.0431) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_935 = POINT ALCOR (0.8281, 0.4929) X_441 = COMPLEMENT OF X(297) (0.3841, -0.2011) X_647 = CROSSDIFFERENCE OF X(2) AND X(3) (4.2063, -0.5653) X_525 = ISOGONAL CONJUGATE OF X(112) (-0.0468, 0.2556) A B C X112 X99 X249 X30 X511 X323 X401 X3 X878 X110 X935 X441 X647 X525 (a, b, c) = (5, 6, 7) | AB = 1

X525 (ISOGONAL CONJUGATE OF X112) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_525 = ISOGONAL CONJUGATE OF X_112."""

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


        def construct_x_00525(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_525 = ISOGONAL CONJUGATE OF X_112 on reference triangle ABC."""
            X_112 = eval_trilinear_point(model, A, B, C, 'a/(sin(2*B) - sin(2*C))', ID="X_112", classes=["center"])
            X_525 = isogonal_conjugate(model, A, B, C, X_112, ID="X_525", classes=["selected", "target"])
            X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
            X_249 = eval_trilinear_point(model, A, B, C, '(csc(A))*(csc(B - C))**(2)', ID="X_249", classes=["center", "incident"])
            central_line(model, X_99, X_249, 99, 249, incident=True)
            X_30 = eval_trilinear_point(model, A, B, C, 'cos(A) - 2*cos(B)*cos(C)', ID="X_30", classes=["center", "incident"])
            X_511 = eval_trilinear_point(model, A, B, C, 'cos(A +  omega  )', ID="X_511", classes=["center", "incident"])
            central_line(model, X_30, X_511, 30, 511, incident=True)
            X_323 = eval_trilinear_point(model, A, B, C, 'sin(3*A)*(csc(A))**(2)', ID="X_323", classes=["center", "incident"])
            X_401 = eval_trilinear_point(model, A, B, C, '(sin(2*B)*sin(2*C) - (sin(2*A))**(2))*(csc(A))', ID="X_401", classes=["center", "incident"])
            central_line(model, X_323, X_401, 323, 401, incident=True)
            return promote_point_to_top(model, X_525)


        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_525 on the given reference triangle."""
            model = create_model('X_525 = ISOGONAL CONJUGATE OF X_112')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00525(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-00525.json"))
            write_center_svg(
                model_acute,
                here / "x-00525.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )