X2471

INSIMILICENTER(ORTHOCENTROIDAL CIRCLE, 1st LEMOINE CIRCLE)

X2471 is the insimilicenter(orthocentroidal circle, 1st Lemoine circle).
< 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) { 182, 381 }: Central Line L(182, 381) { 1672, 2464 }: Central Line L(1672, 2464) { 1673, 2463 }: Central Line L(1673, 2463) { 1680, 2468 }: Central Line L(1680, 2468) { 1681, 2467 }: Central Line L(1681, 2467) { 1687, 2466 }: Central Line L(1687, 2466) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_182 = MIDPOINT OF BROCARD DIAMETER (0.5500, 0.1846) X_381 = MIDPOINT OF X(2) AND X(4) (0.5748, 0.2979) X_1672 = INSIMILICENTER(INCIRCLE, 1st LEMOINE CIRCLE) (0.5619, 0.2116) X_2464 = EXSIMILICENTER(ORTHOCENTROIDAL CIRCLE, INCIRCLE) (0.5776, 0.3505) X_1673 = EXSIMILICENTER(INCIRCLE, 1st LEMOINE CIRCLE) (0.6607, 0.4358) X_2463 = INSIMILICENTER(ORTHOCENTROIDAL CIRCLE, INCIRCLE) (0.5738, 0.2778) X_1680 = INSIMILICENTER(1st LEMOINE CIRCLE, SPIEKER CIRCLE) (0.5289, 0.1837) X_2468 = EXSIMILICENTER(ORTHOCENTROIDALCIRCLE, SPIEKER CIRCLE) (1.0566, 1.3119) X_1681 = EXSIMILICENTER(1st LEMOINE CIRCLE, SPIEKER CIRCLE) (0.5004, 0.1824) X_2467 = INSIMILICENTER(ORTHOCENTROIDAL CIRCLE, SPIEKER CIRCLE) (0.5491, 0.2436) X_1687 = INSIMILICENTER(1st LEMOINE CIRCLE, 2nd LEMOINE CIRCLE) (0.5757, 0.2271) X_2466 = EXSIMILICENTER(ORTHOCENTROIDAL CIRCLE, 2nd LEMOINE CIRCLE) (0.5591, 0.3170) X_2471 = INSIMILICENTER(ORTHOCENTROIDAL CIRCLE, 1st LEMOINE CIRCLE) (0.5682, 0.2677) A B C X182 X381 X1672 X2464 X1673 X2463 X1680 X2468 X1681 X2467 X1687 X2466 X2471 (a, b, c) = (5, 6, 7) | AB = 1

X2471 (INSIMILICENTER(ORTHOCENTROIDAL CIRCLE, 1st LEMOINE CIRCLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2471 = INSIMILICENTER(ORTHOCENTROIDAL CIRCLE, 1st LEMOINE CIRCLE)."""

        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_02471(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2471 = INSIMILICENTER(ORTHOCENTROIDAL CIRCLE, 1st LEMOINE CIRCLE) on reference triangle ABC."""
            X_2471 = eval_trilinear_point(model, A, B, C, '(cos(A) + 4*cos(B)*cos(C) + J*cos(A -  omega  ))', ID="X_2471", classes=["selected", "target"])
            X_182 = eval_trilinear_point(model, A, B, C, 'cos(A-  omega  )', ID="X_182", classes=["center", "incident"])
            X_381 = eval_trilinear_point(model, A, B, C, '2*cos(B - C) - cos(A)', ID="X_381", classes=["center", "incident"])
            central_line(model, X_182, X_381, 182, 381, incident=True)
            X_1672 = eval_trilinear_point(model, A, B, C, '1 + cos(A -  omega  )', ID="X_1672", classes=["center", "incident"])
            X_2464 = eval_trilinear_point(model, A, B, C, '(J - cos(A) - 4*cos(B)*cos(C))', ID="X_2464", classes=["center", "incident"])
            central_line(model, X_1672, X_2464, 1672, 2464, incident=True)
            X_1673 = eval_trilinear_point(model, A, B, C, '1 - cos(A -  omega  )', ID="X_1673", classes=["center", "incident"])
            X_2463 = eval_trilinear_point(model, A, B, C, '(J + cos(A) + 4*cos(B)*cos(C))', ID="X_2463", classes=["center", "incident"])
            central_line(model, X_1673, X_2463, 1673, 2463, incident=True)
            return promote_point_to_top(model, X_2471)


        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_2471 on the given reference triangle."""
            model = create_model('X_2471 = INSIMILICENTER(ORTHOCENTROIDAL CIRCLE, 1st LEMOINE CIRCLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02471(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-02471.json"))
            write_center_svg(
                model_acute,
                here / "x-02471.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )