X2714

SR(X99, X108)

X2714 = reflection of X2707 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) { 2707, 3 }: Central Line L(2707, 3) { 99, 521 }: Central Line L(99, 521) { 108, 512 }: Central Line L(108, 512) { 109, 810 }: Central Line L(109, 810) { 511, 1295 }: Central Line L(511, 1295) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2707 = SR(X(98), X(108)) (0.0635, -0.1624) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_99 = STEINER POINT (0.1109, 0.4322) X_521 = ISOGONAL CONJUGATE OF X(108) (1.1224, 0.1534) X_108 = Ψ(CIRCUMCENTER, INCENTER) (0.5320, 0.6114) X_512 = ISOGONAL CONJUGATE OF X(99) (1.0394, -0.1040) X_109 = Ψ(INCENTER, CIRCUMCENTER) (0.3636, 0.5938) X_810 = CROSSPOINT OF X(1) AND X(163) (3.1222, -0.5010) X_511 = ISOGONAL CONJUGATE OF X(98) (0.2335, -0.3020) X_1295 = COLLINGS TRANSFORM OF X(123) (0.4680, -0.4072) X_2714 = SR(X(99), X(108)) (0.9365, 0.3665) A B C X2707 X3 X99 X521 X108 X512 X109 X810 X511 X1295 X2714 (a, b, c) = (5, 6, 7) | AB = 1

X2714 (SR(X99, X108)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2714 = SR(X_99, X_108)."""

        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_02714(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2714 = SR(X_99, X_108) on reference triangle ABC."""
            X_2707 = point_from_barycentrics(model, A, B, C, 1.0414086, 0.22924055, -0.27064911, ID="X_2707", classes=["center"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            X_2714 = reflection_in_point(model, X_2707, X_3, ID="X_2714", classes=["selected", "target"], guide=False)
            X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
            X_521 = eval_trilinear_point(model, A, B, C, '(sec(B) - sec(C))*(csc(A))', ID="X_521", classes=["center", "incident"])
            central_line(model, X_99, X_521, 99, 521, incident=True)
            X_108 = eval_trilinear_point(model, A, B, C, 'a/(sec(B) - sec(C))', ID="X_108", 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_108, X_512, 108, 512, incident=True)
            X_109 = eval_trilinear_point(model, A, B, C, 'a/(cos(B) - cos(C))', ID="X_109", classes=["center", "incident"])
            X_810 = eval_trilinear_point(model, A, B, C, 'sin(2*A)*((cos(B))**(2) - (cos(C))**(2))', ID="X_810", classes=["center", "incident"])
            central_line(model, X_109, X_810, 109, 810, incident=True)
            return promote_point_to_top(model, X_2714)


        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_2714 on the given reference triangle."""
            model = create_model('X_2714 = SR(X_99, X_108)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02714(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-02714.json"))
            write_center_svg(
                model_acute,
                here / "x-02714.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )