X2748

SR(X105, X106)

< 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) { 105, 519 }: Central Line L(105, 519) { 106, 518 }: Central Line L(106, 518) { 901, 1026 }: Central Line L(901, 1026) { 919, 1023 }: Central Line L(919, 1023) { 1083, 2382 }: Central Line L(1083, 2382) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2832 = ISOGONAL CONJUGATE OF X(2748) (0.3656, -0.3612) X_105 = Λ(INCENTER, SYMMEDIAN POINT) (0.9714, -0.0933) X_519 = ISOGONAL CONJUGATE OF X(106) (0.9566, 0.6107) X_106 = Λ(INCENTER, CENTROID) (1.0000, 0.0000) X_518 = ISOGONAL CONJUGATE OF X(105) (0.9154, 0.6489) X_901 = ISOGONAL CONJUGATE OF X(900) (1.0000, -0.0000) X_1026 = INTERSECTION OF LINES X(1)X(2) AND X(100)X(101) (4.1429, 3.7326) X_919 = ISOGONAL CONJUGATE OF X(918) (1.0058, 0.1699) X_1023 = INTERSECTION OF LINES X(1)X(6) AND X(100)X(101) (2.1429, 2.0996) X_1083 = MIDPOINT OF X(105) AND X(644) (0.4771, 0.1213) X_2382 = CIR(X(537)) (0.2893, 0.5668) X_2748 = SR(X(105), X(106)) (0.6857, -0.3733) A B C X2832 X105 X519 X106 X518 X901 X1026 X919 X1023 X1083 X2382 X2748 (a, b, c) = (5, 6, 7) | AB = 1

X2748 (SR(X105, X106)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2748 = SR(X_105, X_106)."""

        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_02748(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2748 = SR(X_105, X_106) on reference triangle ABC."""
            X_2748 = eval_trilinear_point(model, A, B, C, '(1/((b - c)*(a**(2) + b**(2) + c**(2) - 3*b*c)))', ID="X_2748", classes=["selected", "target"])
            X_105 = eval_trilinear_point(model, A, B, C, '1/(b**(2) + c**(2) - a*(b + c))', ID="X_105", classes=["center", "incident"])
            X_519 = eval_trilinear_point(model, A, B, C, '(2*a - b - c)/a', ID="X_519", classes=["center", "incident"])
            central_line(model, X_105, X_519, 105, 519, incident=True)
            X_106 = eval_trilinear_point(model, A, B, C, 'a/(2*a - b - c)', ID="X_106", 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_106, X_518, 106, 518, incident=True)
            X_901 = eval_trilinear_point(model, A, B, C, 'a/((b - c)*(b + c - 2*a))', ID="X_901", classes=["center", "incident"])
            X_1026 = eval_trilinear_point(model, A, B, C, '((b**(2) + c**(2) - a*(b + c))/(b - c))', ID="X_1026", classes=["center", "incident"])
            central_line(model, X_901, X_1026, 901, 1026, incident=True)
            return promote_point_to_top(model, X_2748)


        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_2748 on the given reference triangle."""
            model = create_model('X_2748 = SR(X_105, X_106)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02748(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-02748.json"))
            write_center_svg(
                model_acute,
                here / "x-02748.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )