X2380

CIR(X532)

< 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) { 14, 99 }: Central Line L(14, 99) { 61, 110 }: Central Line L(61, 110) { 18, 930 }: Central Line L(18, 930) { 16, 1337 }: Central Line L(16, 1337) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_532 = DIRECTION OF VECTOR AX + BX + CX, where X = X(17) (0.8927, 0.6671) X_14 = 2nd ISOGONIC CENTER (0.9134, -0.1143) X_99 = STEINER POINT (0.1109, 0.4322) X_61 = ISOGONAL CONJUGATE OF X(17) (0.5764, 0.2283) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_18 = 2nd NAPOLEON POINT (0.4434, 0.1317) X_930 = ANTICOMPLEMENT OF X(137) (0.0497, 0.3422) X_16 = 2nd ISODYNAMIC POINT (1.8453, 2.3239) X_1337 = 1st WERNAU POINT (2.6910, 4.6498) X_2380 = CIR(X(532)) (0.9498, -0.1390) A B C X532 X14 X99 X61 X110 X18 X930 X16 X1337 X2380 (a, b, c) = (5, 6, 7) | AB = 1

X2380 (CIR(X532)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2380 = CIR(X_532)."""

        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_barycentric_point,
            eval_trilinear_point,
            isogonal_conjugate,
            point_from_barycentrics,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02380(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2380 = CIR(X_532) on reference triangle ABC."""
            X_532 = point_from_barycentrics(model, A, B, C, -0.64045027, -0.11837216, 0.75882243, ID="X_532", classes=["center"])
            X_2380 = isogonal_conjugate(model, A, B, C, X_532, ID="X_2380", classes=["selected", "target"])
            X_14 = eval_trilinear_point(model, A, B, C, 'csc(A -  pi  /3)', ID="X_14", classes=["center", "incident"])
            X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
            central_line(model, X_14, X_99, 14, 99, incident=True)
            X_61 = eval_trilinear_point(model, A, B, C, 'sin(A +  pi  /6)', ID="X_61", classes=["center", "incident"])
            X_110 = eval_trilinear_point(model, A, B, C, 'csc(B - C)', ID="X_110", classes=["center", "incident"])
            central_line(model, X_61, X_110, 61, 110, incident=True)
            X_18 = eval_trilinear_point(model, A, B, C, 'csc(A -  pi  /6)', ID="X_18", classes=["center", "incident"])
            X_930 = eval_barycentric_point(model, A, B, C, '1/((b**(2) - c**(2))*(a**(4) + b**(4) + c**(4) - 2*a**(2)*b**(2) - 2*a**(2)*c**(2) - b**(2)*c**(2)))', ID="X_930", classes=["center", "incident"])
            central_line(model, X_18, X_930, 18, 930, incident=True)
            return promote_point_to_top(model, X_2380)


        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_2380 on the given reference triangle."""
            model = create_model('X_2380 = CIR(X_532)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02380(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-02380.json"))
            write_center_svg(
                model_acute,
                here / "x-02380.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )