X2309

X2-ISOCONJUGATE OF X1258

< 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) { 6, 31 }: Central Line L(6, 31) { 1, 87 }: Central Line L(1, 87) { 21, 238 }: Central Line L(21, 238) { 86, 310 }: Central Line L(86, 310) { 9, 869 }: Central Line L(9, 869) { 44, 872 }: Central Line L(44, 872) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_99 = STEINER POINT (0.1109, 0.4322) X_649 = CROSSDIFFERENCE OF X(1) and X(2) (-21.0000, 14.6969) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_31 = 2nd POWER POINT (0.6228, 0.3008) X_1 = INCENTER (0.5714, 0.2333) X_87 = -CROSS CONJUGATE OF X(1) (0.4794, 0.1691) X_21 = SCHIFFLER POINT (0.5287, 0.1771) X_238 = -LINE CONJUGATE OF X(37) (1.6190, 1.4775) X_86 = CEVAPOINT OF INCENTER AND CENTROID (0.5534, 0.2171) X_310 = ISOTOMIC CONJUGATE OF X(42) (0.4762, 0.1536) X_9 = MITTENPUNKT (0.5110, 0.1615) X_869 = INTERSECTION OF LINES X(1)X(2) AND X(31)X(32) (0.6039, 0.2651) X_44 = -LINE CONJUGATE OF X(1) (2.1429, 2.0996) X_872 = INTERSECTION OF LINES X(37)X(42) AND X(43)X(75) (0.6029, 0.2656) X_2309 = -ISOCONJUGATE OF X(1258) (0.5819, 0.2406) A B C X99 X649 X6 X31 X1 X87 X21 X238 X86 X310 X9 X869 X44 X872 X2309 (a, b, c) = (5, 6, 7) | AB = 1

X2309 (X2-ISOCONJUGATE OF X1258) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2309 = X_2-ISOCONJUGATE OF X_1258."""

        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,
            ceva_conjugate,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            incenter_of,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02309(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2309 = X_2-ISOCONJUGATE OF X_1258 on reference triangle ABC."""
            X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center"])
            X_649 = eval_trilinear_point(model, A, B, C, 'a*(b - c)', ID="X_649", classes=["center"])
            X_2309 = ceva_conjugate(model, A, B, C, X_99, X_649, ID="X_2309", classes=["selected", "target"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            X_31 = eval_trilinear_point(model, A, B, C, 'a**(2)', ID="X_31", classes=["center", "incident"])
            central_line(model, X_6, X_31, 6, 31, incident=True)
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_87 = eval_trilinear_point(model, A, B, C, '1/(a*b + a*c - b*c)', ID="X_87", classes=["center", "incident"])
            central_line(model, X_1, X_87, 1, 87, incident=True)
            X_21 = eval_trilinear_point(model, A, B, C, '1/(cos(B) + cos(C))', ID="X_21", classes=["center", "incident"])
            X_238 = eval_trilinear_point(model, A, B, C, 'a**(2) - b*c', ID="X_238", classes=["center", "incident"])
            central_line(model, X_21, X_238, 21, 238, incident=True)
            return promote_point_to_top(model, X_2309)


        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_2309 on the given reference triangle."""
            model = create_model('X_2309 = X_2-ISOCONJUGATE OF X_1258')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02309(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-02309.json"))
            write_center_svg(
                model_acute,
                here / "x-02309.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )