X597

MIDPOINT OF X2 AND X6

X597 is the midpoint of X2 and X6.
< 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) { 2, 6 }: Centroid–Symmedian Line { 30, 182 }: Central Line L(30, 182) { 5, 542 }: Central Line L(5, 542) { 140, 576 }: Central Line L(140, 576) { 511, 549 }: Central Line L(511, 549) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2 = CENTROID (0.5374, 0.2000) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_30 = EULER INFINITY POINT (0.7469, 0.7481) X_182 = MIDPOINT OF BROCARD DIAMETER (0.5500, 0.1846) X_5 = NINE-POINT CENTER (0.5561, 0.2489) X_542 = DIRECTION OF VECTOR AX + BX + CX, where X = X(98) (0.1649, 0.6534) X_140 = MIDPOINT OF X(3) AND X(5) (0.5281, 0.1755) X_576 = ORTHOHARMONIC OF X(187) (0.6500, 0.3498) X_511 = ISOGONAL CONJUGATE OF X(98) (0.2335, -0.3020) X_549 = MIDPOINT OF X(2) AND X(3) (0.5187, 0.1510) X_597 = MIDPOINT OF X(2) AND X(6) (0.5687, 0.2336) A B C X2 X6 X30 X182 X5 X542 X140 X576 X511 X549 X597 (a, b, c) = (5, 6, 7) | AB = 1

X597 (MIDPOINT OF X2 AND X6) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_597 = MIDPOINT OF X_2 AND X_6."""

        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,
            construct_baseline_triangle,
            create_model,
            eval_barycentric_point,
            eval_trilinear_point,
            midpoint,
            nine_point_center_of,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_00597(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_597 = MIDPOINT OF X_2 AND X_6 on reference triangle ABC."""
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center"])
            X_597 = midpoint(model, X_2, X_6, ID="X_597", classes=["selected", "target"], guide=False)
            central_line(model, X_2, X_6, 2, 6, incident=True)
            X_30 = eval_trilinear_point(model, A, B, C, 'cos(A) - 2*cos(B)*cos(C)', ID="X_30", classes=["center", "incident"])
            X_182 = eval_trilinear_point(model, A, B, C, 'cos(A-  omega  )', ID="X_182", classes=["center", "incident"])
            central_line(model, X_30, X_182, 30, 182, incident=True)
            X_5 = nine_point_center_of(model, A, B, C, ID="X_5", classes=["center", "incident"])
            X_542 = eval_barycentric_point(model, A, B, C, '2*a**(6) - 2*a**(4)*(b**(2) + c**(2)) + a**(2)*(b**(4) + c**(4)) - (b**(2) - c**(2))**(2)*(b**(2) + c**(2))', ID="X_542", classes=["center", "incident"])
            central_line(model, X_5, X_542, 5, 542, incident=True)
            return promote_point_to_top(model, X_597)


        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_597 on the given reference triangle."""
            model = create_model('X_597 = MIDPOINT OF X_2 AND X_6')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00597(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-00597.json"))
            write_center_svg(
                model_acute,
                here / "x-00597.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )