X3424

X2-VERTEX CONJUGATE OF 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) { 20, 76 }: Central Line L(20, 76) { 2, 154 }: Central Line L(2, 154) { 253, 1297 }: Central Line L(253, 1297) { 193, 1916 }: Central Line L(193, 1916) { 385, 2996 }: Central Line L(385, 2996) { 671, 2794 }: Central Line L(671, 2794) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1350 = REFLECTION OF X(6) IN X(3) (0.4000, -0.0631) X_20 = DE LONGCHAMPS POINT (0.3878, -0.1916) X_76 = 3rd BROCARD POINT (0.4567, 0.1388) X_2 = CENTROID (0.5374, 0.2000) X_154 = -CEVA CONJUGATE OF X(6) (0.4807, -0.3954) X_253 = -CROSS CONJUGATE OF X(2) (3.5087, 32.5688) X_1297 = COLLINGS TRANSFORM OF X(127) (0.4838, -0.4080) X_193 = -CEVA CONJUGATE OF X(2) (0.7878, 0.4690) X_1916 = TRILINEAR POLE OF PU(11) (1.0447, 0.0288) X_385 = -HIRST INVERSE OF X(6) (2.2863, 2.0795) X_2996 = CD(X(25)) (-0.6196, -0.1183) X_671 = TRILINEAR POLE OF LINE X(2)X(523) (0.9639, -0.0323) X_2794 = ISOGONAL CONJUGATE OF X(2710) (0.2994, 0.7364) X_3424 = -VERTEX CONJUGATE OF X(3) (0.5946, 0.8000) A B C X1350 X20 X76 X2 X154 X253 X1297 X193 X1916 X385 X2996 X671 X2794 X3424 (a, b, c) = (5, 6, 7) | AB = 1

X3424 (X2-VERTEX CONJUGATE OF X3) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3424 = X_2-VERTEX CONJUGATE OF X_3."""

        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,
            centroid_of,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            isogonal_conjugate,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03424(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3424 = X_2-VERTEX CONJUGATE OF X_3 on reference triangle ABC."""
            X_1350 = eval_trilinear_point(model, A, B, C, 'a - 4*R*cot(omega)*cos(A)', ID="X_1350", classes=["center"])
            X_3424 = isogonal_conjugate(model, A, B, C, X_1350, ID="X_3424", classes=["selected", "target"])
            X_20 = eval_trilinear_point(model, A, B, C, 'cos(A) - cos(B)*cos(C)', ID="X_20", classes=["center", "incident"])
            X_76 = eval_trilinear_point(model, A, B, C, '1/a**(3)', ID="X_76", classes=["center", "incident"])
            central_line(model, X_20, X_76, 20, 76, incident=True)
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_154 = eval_trilinear_point(model, A, B, C, '(cos(A) - cos(B)*cos(C))*a**(2)', ID="X_154", classes=["center", "incident"])
            central_line(model, X_2, X_154, 2, 154, incident=True)
            X_253 = eval_trilinear_point(model, A, B, C, '((csc(A))/(tan(B) + tan(C) - tan(A)))', ID="X_253", classes=["center", "incident"])
            X_1297 = eval_trilinear_point(model, A, B, C, '(a/(b**(6) + c**(6) - 2*a**(6) + a**(4)*b**(2) + a**(4)*c**(2) - b**(4)*c**(2) - b**(2)*c**(4)))', ID="X_1297", classes=["center", "incident"])
            central_line(model, X_253, X_1297, 253, 1297, incident=True)
            return promote_point_to_top(model, X_3424)


        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_3424 on the given reference triangle."""
            model = create_model('X_3424 = X_2-VERTEX CONJUGATE OF X_3')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03424(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-03424.json"))
            write_center_svg(
                model_acute,
                here / "x-03424.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )