X2830

ISOGONAL CONJUGATE OF X2746

< 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) { 104, 111 }: Central Line L(104, 111) { 119, 126 }: Central Line L(119, 126) { 30, 511 }: Central Line L(30, 511) { 100, 1296 }: Central Line L(100, 1296) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2746 = SR(X(104), X(111)) (0.8892, -0.2279) X_104 = ANTIPODE OF X(100) (0.8571, -0.2624) X_111 = PARRY POINT (0.9885, -0.0457) X_119 = FEUERBACH ANTIPODE (0.3776, 0.4312) X_126 = -OF-MEDIAL-TRIANGLE (0.3119, 0.3228) X_30 = EULER INFINITY POINT (0.7469, 0.7481) X_511 = ISOGONAL CONJUGATE OF X(98) (0.2335, -0.3020) X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.1429, 0.4666) X_1296 = COLLINGS TRANSFORM OF X(126) (0.0115, 0.2498) X_2830 = ISOGONAL CONJUGATE OF X(2746) (0.8415, 0.7019) A B C X2746 X104 X111 X119 X126 X30 X511 X100 X1296 X2830 (a, b, c) = (5, 6, 7) | AB = 1

X2830 (ISOGONAL CONJUGATE OF X2746) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2830 = ISOGONAL CONJUGATE OF X_2746."""

        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_02830(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2830 = ISOGONAL CONJUGATE OF X_2746 on reference triangle ABC."""
            X_2746 = point_from_barycentrics(model, A, B, C, 0.25810391, 1.1218917, -0.37999556, ID="X_2746", classes=["center"])
            X_2830 = isogonal_conjugate(model, A, B, C, X_2746, ID="X_2830", classes=["selected", "target"])
            X_104 = eval_trilinear_point(model, A, B, C, '1/(-1 + cos(B) + cos(C))', ID="X_104", 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_104, X_111, 104, 111, incident=True)
            X_119 = eval_trilinear_point(model, A, B, C, '(csc(A))*(-1 + cos(B) + cos(C))*(sin(2*B) + sin(2*C) + 2*(-1 + cos(A))*(sin(B) + sin(C)))', ID="X_119", 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_119, X_126, 119, 126, 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)
            return promote_point_to_top(model, X_2830)


        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_2830 on the given reference triangle."""
            model = create_model('X_2830 = ISOGONAL CONJUGATE OF X_2746')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02830(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-02830.json"))
            write_center_svg(
                model_acute,
                here / "x-02830.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )