X2695

SR(X74, X109)

X2695 = reflection of X2689 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) { 2689, 3 }: Central Line L(2689, 3) { 30, 109 }: Central Line L(30, 109) { 74, 522 }: Central Line L(74, 522) { 102, 523 }: Central Line L(102, 523) { 110, 515 }: Central Line L(110, 515) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2689 = SR(X(74), X(102)) (0.9296, 0.3775) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_30 = EULER INFINITY POINT (0.7469, 0.7481) X_109 = Ψ(INCENTER, CIRCUMCENTER) (0.3636, 0.5938) X_74 = ISOGONAL CONJUGATE OF EULER INFINITY POINT (0.7484, -0.3437) X_522 = ISOGONAL CONJUGATE OF X(109) (-0.0318, 0.3430) X_102 = Λ(INCENTER, ORTHOCENTER) (0.6364, -0.3897) X_523 = ISOGONAL CONJUGATE OF X(110) (1.0856, -0.0096) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_515 = ISOGONAL CONJUGATE OF X(102) (0.6804, 0.7691) X_2695 = SR(X(74), X(109)) (0.0704, -0.1734) A B C X2689 X3 X30 X109 X74 X522 X102 X523 X110 X515 X2695 (a, b, c) = (5, 6, 7) | AB = 1

X2695 (SR(X74, X109)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2695 = SR(X_74, X_109)."""

        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_02695(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2695 = SR(X_74, X_109) on reference triangle ABC."""
            X_2689 = point_from_barycentrics(model, A, B, C, -0.17360704, 0.54428152, 0.62932551, ID="X_2689", classes=["center"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            X_2695 = reflection_in_point(model, X_2689, X_3, ID="X_2695", classes=["selected", "target"], guide=False)
            X_30 = eval_trilinear_point(model, A, B, C, 'cos(A) - 2*cos(B)*cos(C)', ID="X_30", classes=["center", "incident"])
            X_109 = eval_trilinear_point(model, A, B, C, 'a/(cos(B) - cos(C))', ID="X_109", classes=["center", "incident"])
            central_line(model, X_30, X_109, 30, 109, incident=True)
            X_74 = eval_trilinear_point(model, A, B, C, '1/(cos(A) - 2*cos(B)*cos(C))', ID="X_74", classes=["center", "incident"])
            X_522 = eval_trilinear_point(model, A, B, C, '(cos(B) - cos(C))*(csc(A))', ID="X_522", classes=["center", "incident"])
            central_line(model, X_74, X_522, 74, 522, incident=True)
            X_102 = eval_trilinear_point(model, A, B, C, '1/(sin(B)*(sec(A) - sec(B)) + sin(C)*(sec(A) - sec(C)))', ID="X_102", classes=["center", "incident"])
            X_523 = eval_trilinear_point(model, A, B, C, 'sin(B -C)', ID="X_523", classes=["center", "incident"])
            central_line(model, X_102, X_523, 102, 523, incident=True)
            return promote_point_to_top(model, X_2695)


        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_2695 on the given reference triangle."""
            model = create_model('X_2695 = SR(X_74, X_109)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02695(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-02695.json"))
            write_center_svg(
                model_acute,
                here / "x-02695.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )