X2702

SR(X98, X103)

X2702 = reflection of X2700 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) { 2700, 3 }: Central Line L(2700, 3) { 106, 187 }: Central Line L(106, 187) { 99, 514 }: Central Line L(99, 514) { 101, 512 }: Central Line L(101, 512) { 98, 516 }: Central Line L(98, 516) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2700 = SR(X(98), X(101)) (-0.0071, 0.1593) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_106 = Λ(INCENTER, CENTROID) (1.0000, 0.0000) X_187 = INVERSE-IN-CIRCUMCIRCLE OF X(6) (SCHOUTE CENTER) (1.1986, 1.2559) X_99 = STEINER POINT (0.1109, 0.4322) X_514 = ISOGONAL CONJUGATE OF X(101) (1.0761, -0.0329) X_101 = Ψ(INCENTER, SYMMEDIAN POINT) (0.2143, 0.5249) X_512 = ISOGONAL CONJUGATE OF X(99) (1.0394, -0.1040) X_98 = TARRY POINT (0.8891, -0.2281) X_516 = ISOGONAL CONJUGATE OF X(103) (0.7703, 0.7386) X_2702 = SR(X(98), X(103)) (1.0071, 0.0449) A B C X2700 X3 X106 X187 X99 X514 X101 X512 X98 X516 X2702 (a, b, c) = (5, 6, 7) | AB = 1

X2702 (SR(X98, X103)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2702 = SR(X_98, X_103)."""

        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_02702(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2702 = SR(X_98, X_103) on reference triangle ABC."""
            X_2700 = point_from_barycentrics(model, A, B, C, 0.90414101, -0.16964973, 0.26550872, ID="X_2700", classes=["center"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            X_2702 = reflection_in_point(model, X_2700, X_3, ID="X_2702", classes=["selected", "target"], guide=False)
            X_106 = eval_trilinear_point(model, A, B, C, 'a/(2*a - b - c)', ID="X_106", classes=["center", "incident"])
            X_187 = eval_trilinear_point(model, A, B, C, 'a*(2*a**(2) - b**(2) - c**(2))', ID="X_187", classes=["center", "incident"])
            central_line(model, X_106, X_187, 106, 187, incident=True)
            X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
            X_514 = eval_trilinear_point(model, A, B, C, '(b - c)/a', ID="X_514", classes=["center", "incident"])
            central_line(model, X_99, X_514, 99, 514, incident=True)
            X_101 = eval_trilinear_point(model, A, B, C, 'a/(b - c)', ID="X_101", classes=["center", "incident"])
            X_512 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) - c**(2))', ID="X_512", classes=["center", "incident"])
            central_line(model, X_101, X_512, 101, 512, incident=True)
            return promote_point_to_top(model, X_2702)


        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_2702 on the given reference triangle."""
            model = create_model('X_2702 = SR(X_98, X_103)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02702(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-02702.json"))
            write_center_svg(
                model_acute,
                here / "x-02702.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )