X2736

SR(X103, X105)

X2736 = reflection of X2725 in X3
< 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) { 2725, 3 }: Central Line L(2725, 3) { 103, 518 }: Central Line L(103, 518) { 105, 516 }: Central Line L(105, 516) { 514, 1292 }: Central Line L(514, 1292) { 1323, 2377 }: Central Line L(1323, 2377) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2725 = SR(X(101), X(105)) (0.0347, 0.3116) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_103 = ANTIPODE OF X(101) (0.7857, -0.3208) X_518 = ISOGONAL CONJUGATE OF X(105) (0.9154, 0.6489) X_105 = Λ(INCENTER, SYMMEDIAN POINT) (0.9714, -0.0933) X_516 = ISOGONAL CONJUGATE OF X(103) (0.7703, 0.7386) X_514 = ISOGONAL CONJUGATE OF X(101) (1.0761, -0.0329) X_1292 = COLLINGS TRANSFORM OF X(55) (0.0286, 0.2974) X_1323 = FLETCHER POINT (1.0262, 1.2854) X_2377 = CIR(X(220)) (0.9818, 0.2702) X_2736 = SR(X(103), X(105)) (0.9653, -0.1075) A B C X2725 X3 X103 X518 X105 X516 X514 X1292 X1323 X2377 X2736 (a, b, c) = (5, 6, 7) | AB = 1

X2736 (SR(X103, X105)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2736 = SR(X_103, X_105)."""

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


        def construct_x_02736(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2736 = SR(X_103, X_105) on reference triangle ABC."""
            X_2725 = point_from_barycentrics(model, A, B, C, 0.76388889, -0.28333333, 0.51944444, ID="X_2725", classes=["center"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            X_2736 = reflection_in_point(model, X_2725, X_3, ID="X_2736", classes=["selected", "target"], guide=False)
            X_103 = eval_trilinear_point(model, A, B, C, 'a/((a - b)*cot(C) + (a - c)*cot(B))', ID="X_103", classes=["center", "incident"])
            X_518 = eval_trilinear_point(model, A, B, C, '(a*b + a*c - b**(2) - c**(2))', ID="X_518", classes=["center", "incident"])
            central_line(model, X_103, X_518, 103, 518, incident=True)
            X_105 = eval_trilinear_point(model, A, B, C, '1/(b**(2) + c**(2) - a*(b + c))', ID="X_105", classes=["center", "incident"])
            X_516 = eval_trilinear_point(model, A, B, C, 'b*c*((a - b)*cot(C) + (a - c)*cot(B))', ID="X_516", classes=["center", "incident"])
            central_line(model, X_105, X_516, 105, 516, incident=True)
            X_514 = eval_trilinear_point(model, A, B, C, '(b - c)/a', ID="X_514", classes=["center", "incident"])
            X_1292 = eval_trilinear_point(model, A, B, C, '1/((b - c)*(a**(2) + b**(2) + c**(2) - 2*a*b - 2*a*c))', ID="X_1292", classes=["center", "incident"])
            central_line(model, X_514, X_1292, 514, 1292, incident=True)
            return promote_point_to_top(model, X_2736)


        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_2736 on the given reference triangle."""
            model = create_model('X_2736 = SR(X_103, X_105)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02736(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-02736.json"))
            write_center_svg(
                model_acute,
                here / "x-02736.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )