X2031

RADICAL TRACE OF MOSES AND BROCARD CIRCLES

< 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) { 3, 6 }: Brocard Axis { 230, 625 }: Central Line L(230, 625) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_230 = -CEVA CONJUGATE OF X(114) (0.9746, 0.6698) X_625 = MIDPOINT OF X(623) AND X(624) (0.2068, -0.3280) X_2031 = RADICAL TRACE OF MOSES AND BROCARD CIRCLES (0.3607, -0.1281) A B C X3 X6 X230 X625 X2031 (a, b, c) = (5, 6, 7) | AB = 1

X2031 (RADICAL TRACE OF MOSES AND BROCARD CIRCLES) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2031 = RADICAL TRACE OF MOSES AND BROCARD CIRCLES."""

        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,
            circumcenter_of,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02031(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2031 = RADICAL TRACE OF MOSES AND BROCARD CIRCLES on reference triangle ABC."""
            X_2031 = eval_trilinear_point(model, A, B, C, '(2*sin(A - 3*omega  ) + (sin(omega)  )*(5*cos(A) + cos(A + 2*omega  )))', ID="X_2031", classes=["selected", "target"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            central_line(model, X_3, X_6, 3, 6, incident=True)
            X_230 = eval_trilinear_point(model, A, B, C, 'b*c*(a**(2)*(2*a**(2) - b**(2) - c**(2)) + (b**(2) - c**(2))**(2))', ID="X_230", classes=["center", "incident"])
            X_625 = eval_trilinear_point(model, A, B, C, '(2*(b**(4) + c**(4) - b**(2)*c**(2)) - a**(2)*(b**(2) + c**(2)))/a', ID="X_625", classes=["center", "incident"])
            central_line(model, X_230, X_625, 230, 625, incident=True)
            return promote_point_to_top(model, X_2031)


        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_2031 on the given reference triangle."""
            model = create_model('X_2031 = RADICAL TRACE OF MOSES AND BROCARD CIRCLES')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02031(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-02031.json"))
            write_center_svg(
                model_acute,
                here / "x-02031.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )