X837

ISOGONAL CONJUGATE OF X836

< 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) { 393, 394 }: Central Line L(393, 394) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1 = INCENTER (0.5714, 0.2333) X_393 = -CROSS CONJUGATE OF X(4) (0.6247, 0.5263) X_394 = -CEVA CONJUGATE OF X(3) (0.3778, 0.0284) X_837 = ISOGONAL CONJUGATE OF X(836) (0.6016, 0.4798) A B C X1 X393 X394 X837 (a, b, c) = (5, 6, 7) | AB = 1

X837 (ISOGONAL CONJUGATE OF X836) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_837 = ISOGONAL CONJUGATE OF X_836."""

        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_00837(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_837 = ISOGONAL CONJUGATE OF X_836 on reference triangle ABC."""
            X_836 = eval_trilinear_point(model, A, B, C, '(sin(B)*(sec(B))**(2) + sin(C)*(sec(C))**(2))', ID="X_836", classes=["center"])
            X_837 = isogonal_conjugate(model, A, B, C, X_836, ID="X_837", classes=["selected", "target"])
            X_393 = eval_trilinear_point(model, A, B, C, 'b*c*(tan(A))**(2)', ID="X_393", classes=["center", "incident"])
            X_394 = eval_trilinear_point(model, A, B, C, 'cos(A)*cot(A)', ID="X_394", classes=["center", "incident"])
            central_line(model, X_393, X_394, 393, 394, incident=True)
            return promote_point_to_top(model, X_837)


        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_837 on the given reference triangle."""
            model = create_model('X_837 = ISOGONAL CONJUGATE OF X_836')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00837(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-00837.json"))
            write_center_svg(
                model_acute,
                here / "x-00837.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )