X2291

X2-ISOCONJUGATE OF X1155

< 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) { 9, 100 }: Central Line L(9, 100) { 6, 109 }: Central Line L(6, 109) { 19, 108 }: Central Line L(19, 108) { 55, 101 }: Central Line L(55, 101) { 110, 284 }: Central Line L(110, 284) { 99, 333 }: Central Line L(99, 333) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_527 = DIRECTION OF VECTOR AX + BX + CX, where X = X(7) (0.8698, 0.6836) X_9 = MITTENPUNKT (0.5110, 0.1615) X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.1429, 0.4666) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_109 = Ψ(INCENTER, CIRCUMCENTER) (0.3636, 0.5938) X_19 = CLAWSON POINT (0.6246, 0.4244) X_108 = Ψ(CIRCUMCENTER, INCENTER) (0.5320, 0.6114) X_55 = INSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.5490, 0.1921) X_101 = Ψ(INCENTER, SYMMEDIAN POINT) (0.2143, 0.5249) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_284 = -CROSS CONJUGATE OF X(21) (0.5646, 0.2088) X_99 = STEINER POINT (0.1109, 0.4322) X_333 = CEVAPOINT OF X(8) AND X(9) (0.4886, 0.1475) X_2291 = -ISOCONJUGATE OF X(1155) (0.9245, -0.1812) A B C X527 X9 X100 X6 X109 X19 X108 X55 X101 X110 X284 X99 X333 X2291 (a, b, c) = (5, 6, 7) | AB = 1

X2291 (X2-ISOCONJUGATE OF X1155) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2291 = X_2-ISOCONJUGATE OF X_1155."""

        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,
            isogonal_conjugate,
            mittenpunkt_of,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02291(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2291 = X_2-ISOCONJUGATE OF X_1155 on reference triangle ABC."""
            X_527 = eval_barycentric_point(model, A, B, C, '2*a**(2) - a*(b + c) - (b - c)**(2)', ID="X_527", classes=["center"])
            X_2291 = isogonal_conjugate(model, A, B, C, X_527, ID="X_2291", classes=["selected", "target"])
            X_9 = mittenpunkt_of(model, A, B, C, ID="X_9", classes=["center", "incident"])
            X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
            central_line(model, X_9, X_100, 9, 100, incident=True)
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", 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_6, X_109, 6, 109, incident=True)
            X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", classes=["center", "incident"])
            X_108 = eval_trilinear_point(model, A, B, C, 'a/(sec(B) - sec(C))', ID="X_108", classes=["center", "incident"])
            central_line(model, X_19, X_108, 19, 108, incident=True)
            return promote_point_to_top(model, X_2291)


        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_2291 on the given reference triangle."""
            model = create_model('X_2291 = X_2-ISOCONJUGATE OF X_1155')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02291(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-02291.json"))
            write_center_svg(
                model_acute,
                here / "x-02291.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )