X2699

SR(X98, X100)

X2699 = reflection of X2703 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) { 2703, 3 }: Central Line L(2703, 3) { 107, 422 }: Central Line L(107, 422) { 98, 513 }: Central Line L(98, 513) { 100, 511 }: Central Line L(100, 511) { 99, 517 }: Central Line L(99, 517) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2703 = SR(X(98), X(104)) (0.9885, -0.0455) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_107 = Ψ(SYMMEDIAN POINT, ORTHOCENTER) (0.5733, 0.6071) X_422 = -HIRST INVERSE OF X(28) (0.7315, 0.7077) X_98 = TARRY POINT (0.8891, -0.2281) X_513 = ISOGONAL CONJUGATE OF X(100) (1.0529, -0.0806) X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.1429, 0.4666) X_511 = ISOGONAL CONJUGATE OF X(98) (0.2335, -0.3020) X_99 = STEINER POINT (0.1109, 0.4322) X_517 = ISOGONAL CONJUGATE OF X(104) (0.8180, 0.7154) X_2699 = SR(X(98), X(100)) (0.0115, 0.2496) A B C X2703 X3 X107 X422 X98 X513 X100 X511 X99 X517 X2699 (a, b, c) = (5, 6, 7) | AB = 1

X2699 (SR(X98, X100)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2699 = SR(X_98, X_100)."""

        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_barycentric_point,
            eval_trilinear_point,
            intersect_lines,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02699(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2699 = SR(X_98, X_100) on reference triangle ABC."""
            X_107 = eval_trilinear_point(model, A, B, C, '1/(cos(A)*(sin(2*B) - sin(2*C)))', ID="X_107", classes=["center"])
            X_422 = eval_barycentric_point(model, A, B, C, '(a + b) * (a + c) * (a**(2) + b**(2) - c**(2)) * (a**(2) - b**(2) + c**(2)) * (a**(3) + a*b*c - b**(2)*c - b*c**(2))', ID="X_422", classes=["center"])
            X_98 = eval_trilinear_point(model, A, B, C, 'sec(A +  omega  )', ID="X_98", classes=["center"])
            X_513 = eval_trilinear_point(model, A, B, C, 'b - c', ID="X_513", classes=["center"])
            central_line(model, X_107, X_422, 107, 422)
            central_line(model, X_98, X_513, 98, 513)
            X_2699 = intersect_lines(model, X_107, X_422, X_98, X_513, ID="X_2699", classes=["selected", "target"])
            X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
            X_511 = eval_trilinear_point(model, A, B, C, 'cos(A +  omega  )', ID="X_511", classes=["center", "incident"])
            central_line(model, X_100, X_511, 100, 511, incident=True)
            return promote_point_to_top(model, X_2699)


        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_2699 on the given reference triangle."""
            model = create_model('X_2699 = SR(X_98, X_100)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02699(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-02699.json"))
            write_center_svg(
                model_acute,
                here / "x-02699.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )