X3356

X6-CROSS CONJUGATE OF X3350

< 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) { 3, 2131 }: Central Line L(3, 2131) { 223, 3351 }: Central Line L(223, 3351) { 1249, 3343 }: Central Line L(1249, 3343) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_3350 = INTERSECTION OF LINES X(3)X(2131) AND X(4)X(1073) (0.5892, 0.2523) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_2131 = ISOGONAL CONJUGATE OF X(2130) (0.5325, 0.1568) X_223 = -CEVA CONJUGATE OF X(57) (0.4996, -0.0528) X_3351 = -CEVA CONJUGATE OF X(3342) (0.6100, 0.2900) X_1249 = ISOGONAL CONJUGATE OF X(1073) (-0.9482, -15.9845) X_3343 = -CEVA CONJUGATE OF X(1073) (0.6143, 0.3503) X_3356 = -CROSS CONJUGATE OF X(3350) (0.6079, 0.2837) A B C X6 X3350 X3 X2131 X223 X3351 X1249 X3343 X3356 (a, b, c) = (5, 6, 7) | AB = 1

X3356 (X6-CROSS CONJUGATE OF X3350) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3356 = X_6-CROSS CONJUGATE OF X_3350."""

        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,
            intersect_lines,
            point_from_barycentrics,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03356(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3356 = X_6-CROSS CONJUGATE OF X_3350 on reference triangle ABC."""
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            X_2131 = point_from_barycentrics(model, A, B, C, 0.36616655, 0.37250097, 0.26133249, ID="X_2131", classes=["center"])
            X_223 = eval_trilinear_point(model, A, B, C, '(tan(A/2))*(cos(B) + cos(C) - cos(A) - 1)', ID="X_223", classes=["center"])
            X_3351 = point_from_barycentrics(model, A, B, C, 0.20257124, 0.3139591, 0.48346966, ID="X_3351", classes=["center"])
            central_line(model, X_3, X_2131, 3, 2131)
            central_line(model, X_223, X_3351, 223, 3351)
            X_3356 = intersect_lines(model, X_3, X_2131, X_223, X_3351, ID="X_3356", classes=["selected", "target"])
            X_1249 = eval_trilinear_point(model, A, B, C, '(tan(A))*(cos(A) - cos(B)*cos(C))', ID="X_1249", classes=["center", "incident"])
            X_3343 = point_from_barycentrics(model, A, B, C, 0.15926582, 0.25678823, 0.58394595, ID="X_3343", classes=["center", "incident"])
            central_line(model, X_1249, X_3343, 1249, 3343, incident=True)
            return promote_point_to_top(model, X_3356)


        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_3356 on the given reference triangle."""
            model = create_model('X_3356 = X_6-CROSS CONJUGATE OF X_3350')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03356(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-03356.json"))
            write_center_svg(
                model_acute,
                here / "x-03356.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )