X1506

INSIMILICENTER OF MOSES AND NINE-POINT CIRCLES

X1506 is the insimilicenter of moses and nine-point circles.
< A B C >: Reference Triangle △ABC < M_a M_b M_c >: Medial Triangle △M_a M_b M_c [ A B ]: Sideline AB (Base c = 1) [ B C ]: Sideline BC (Side a) [ C A ]: Sideline CA (Side b) { 2, 1078 }: Central Line L(2, 1078) { 6, 17 }: Central Line L(6, 17) { 2, 32 }: Central Line L(2, 32) { 5, 39 }: Central Line L(5, 39) { 51, 211 }: Central Line L(51, 211) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) M_a = Midpoint M_a of BC (0.8061, 0.2999) M_b = Midpoint M_b of CA (0.3061, 0.2999) M_c = Midpoint M_c of AB (0.5000, 0.0000) X_2 = CENTROID (0.5374, 0.2000) X_1078 = INTERSECTION OF LINES X(2)X(32) AND X(3)X(76) (0.4771, 0.1215) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_17 = 1st NAPOLEON POINT (0.5666, 0.2383) X_32 = 3rd POWER POINT (0.6400, 0.3332) X_5 = NINE-POINT CENTER (0.5561, 0.2489) X_39 = BROCARD MIDPOINT (0.5778, 0.2305) X_51 = CENTROID OF ORTHIC TRIANGLE (0.6093, 0.3186) X_211 = -CEVA CONJUGATE OF X(39) (0.6801, 0.4536) X_1506 = INSIMILICENTER OF MOSES AND NINE-POINT CIRCLES (0.5676, 0.2392) A B C Ma Mb Mc X2 X1078 X6 X17 X32 X5 X39 X51 X211 X1506 (a, b, c) = (5, 6, 7) | AB = 1

X1506 (INSIMILICENTER OF MOSES AND NINE-POINT CIRCLES) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1506 = INSIMILICENTER OF MOSES AND NINE-POINT 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,
            centroid_of,
            complement,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            nine_point_center_of,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01506(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1506 = INSIMILICENTER OF MOSES AND NINE-POINT CIRCLES on reference triangle ABC."""
            X_1078 = eval_trilinear_point(model, A, B, C, '(b*c*(b**(2)*c**(2) + c**(2)*a**(2) + a**(2)*b**(2) - a**(4)))', ID="X_1078", classes=["center"])
            X_1506 = complement(model, A, B, C, X_1078, ID="X_1506", classes=["selected", "target"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            X_17 = eval_trilinear_point(model, A, B, C, 'csc(A +  pi  /6)', ID="X_17", classes=["center", "incident"])
            central_line(model, X_6, X_17, 6, 17, incident=True)
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_32 = eval_trilinear_point(model, A, B, C, 'a**(3)', ID="X_32", classes=["center", "incident"])
            central_line(model, X_2, X_32, 2, 32, incident=True)
            X_5 = nine_point_center_of(model, A, B, C, ID="X_5", classes=["center", "incident"])
            X_39 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) + c**(2))', ID="X_39", classes=["center", "incident"])
            central_line(model, X_5, X_39, 5, 39, incident=True)
            return promote_point_to_top(model, X_1506)


        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_1506 on the given reference triangle."""
            model = create_model('X_1506 = INSIMILICENTER OF MOSES AND NINE-POINT CIRCLES')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01506(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-01506.json"))
            write_center_svg(
                model_acute,
                here / "x-01506.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )