X2513

RADICAL CENTER OF {CIRCUMCIRCLE, GALLATLY CIRCLE, (X4,2R)}

The circle (X4,2R) is identified at X2474.
< 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) { 325, 523 }: Central Line L(325, 523) { 647, 688 }: Central Line L(647, 688) { 512, 2021 }: Central Line L(512, 2021) { 525, 2531 }: Central Line L(525, 2531) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_325 = -HIRST INVERSE OF X(69) (-0.3370, -0.7398) X_523 = ISOGONAL CONJUGATE OF X(110) (1.0856, -0.0096) X_647 = CROSSDIFFERENCE OF X(2) AND X(3) (4.2063, -0.5653) X_688 = CROSSDIFFERENCE OF X(6) AND X(76) (1.0103, -0.1475) X_512 = ISOGONAL CONJUGATE OF X(99) (1.0394, -0.1040) X_2021 = RADICAL TRACE OF GALLATLY CIRCLE AND CIRCUMCIRCLE (0.8882, 0.7432) X_525 = ISOGONAL CONJUGATE OF X(112) (-0.0468, 0.2556) X_2531 = RADICAL CENTER OF {BROCARD, (X(4),2R), 2nd BROCARD} CIRCLES (8.2533, -4.4169) X_2513 = RADICAL CENTER OF {CIRCUMCIRCLE, GALLATLY CIRCLE, (X(4),2R)} (9.6264, -4.5477) A B C X325 X523 X647 X688 X512 X2021 X525 X2531 X2513 (a, b, c) = (5, 6, 7) | AB = 1

X2513 (RADICAL CENTER OF {CIRCUMCIRCLE, GALLATLY CIRCLE, (X4,2R)}) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2513 = RADICAL CENTER OF {CIRCUMCIRCLE, GALLATLY CIRCLE, (X_4,2R)}."""

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


        def construct_x_02513(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2513 = RADICAL CENTER OF {CIRCUMCIRCLE, GALLATLY CIRCLE, (X_4,2R)} on reference triangle ABC."""
            X_2513 = eval_trilinear_point(model, A, B, C, '(a*(b**(2) - c**(2))*(a**(2)*(2*b**(4) + 3*b**(2)*c**(2) + 2*c**(4)) + b**(2)*c**(2)*(b**(2) + c**(2))))', ID="X_2513", classes=["selected", "target"])
            X_325 = eval_trilinear_point(model, A, B, C, '(csc(A))**(2)', ID="X_325", classes=["center", "incident"])
            X_523 = eval_trilinear_point(model, A, B, C, 'sin(B -C)', ID="X_523", classes=["center", "incident"])
            central_line(model, X_325, X_523, 325, 523, incident=True)
            X_647 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) - c**(2))*(b**(2) + c**(2) - a**(2))', ID="X_647", classes=["center", "incident"])
            X_688 = eval_trilinear_point(model, A, B, C, '(a**(3)*(b**(4) - c**(4)))', ID="X_688", classes=["center", "incident"])
            central_line(model, X_647, X_688, 647, 688, incident=True)
            X_512 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) - c**(2))', ID="X_512", classes=["center", "incident"])
            X_2021 = eval_trilinear_point(model, A, B, C, '3*sin(A -  omega  ) - 2*sin(A +  omega  ) + sin(A + 3*omega  )', ID="X_2021", classes=["center", "incident"])
            central_line(model, X_512, X_2021, 512, 2021, incident=True)
            return promote_point_to_top(model, X_2513)


        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_2513 on the given reference triangle."""
            model = create_model('X_2513 = RADICAL CENTER OF {CIRCUMCIRCLE, GALLATLY CIRCLE, (X_4,2R)}')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02513(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-02513.json"))
            write_center_svg(
                model_acute,
                here / "x-02513.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )