X1392

ISOGONAL CONJUGATE OF X1388

< 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) { 80, 145 }: Central Line L(80, 145) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1388 = POINT ANCHA (0.4835, 0.0718) X_80 = REFLECTION OF INCENTER IN FEUERBACH POINT (0.8980, -0.1000) X_145 = ANTICOMPLEMENT OF NAGEL POINT (0.6735, 0.3333) X_1392 = ISOGONAL CONJUGATE OF X(1388) (0.6149, 0.4463) A B C X1388 X80 X145 X1392 (a, b, c) = (5, 6, 7) | AB = 1

X1392 (ISOGONAL CONJUGATE OF X1388) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1392 = ISOGONAL CONJUGATE OF X_1388."""

        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_01392(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1392 = ISOGONAL CONJUGATE OF X_1388 on reference triangle ABC."""
            X_1388 = eval_trilinear_point(model, A, B, C, '((3*a - 2*b -2*c)/(a - b - c))', ID="X_1388", classes=["center"])
            X_1392 = isogonal_conjugate(model, A, B, C, X_1388, ID="X_1392", classes=["selected", "target"])
            X_80 = eval_trilinear_point(model, A, B, C, '1/(1 - 2*cos(A))', ID="X_80", classes=["center", "incident"])
            X_145 = eval_trilinear_point(model, A, B, C, 'b*c*(3*a - b - c)', ID="X_145", classes=["center", "incident"])
            central_line(model, X_80, X_145, 80, 145, incident=True)
            return promote_point_to_top(model, X_1392)


        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_1392 on the given reference triangle."""
            model = create_model('X_1392 = ISOGONAL CONJUGATE OF X_1388')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01392(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-01392.json"))
            write_center_svg(
                model_acute,
                here / "x-01392.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )