X3206

X54-CEVA CONJUGATE OF X62

< 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) { 13, 54 }: Central Line L(13, 54) { 49, 62 }: Central Line L(49, 62) { 18, 110 }: Central Line L(18, 110) { 14, 156 }: Central Line L(14, 156) { 61, 184 }: Central Line L(61, 184) { 16, 1147 }: Central Line L(16, 1147) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_54 = KOSNITA POINT (0.5880, 0.2176) X_62 = ISOGONAL CONJUGATE OF X(18) (0.6446, 0.3409) X_13 = 1st ISOGONIC CENTER (FERMAT POINT, TORRICELLI POINT) (0.5879, 0.2819) X_49 = CENTER OF SINE-TRIPLE-ANGLE CIRCLE (0.6275, 0.1789) X_18 = 2nd NAPOLEON POINT (0.4434, 0.1317) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_14 = 2nd ISOGONIC CENTER (0.9134, -0.1143) X_156 = -OF-TANGENTIAL-TRIANGLE (0.6520, -0.1707) X_61 = ISOGONAL CONJUGATE OF X(17) (0.5764, 0.2283) X_184 = INVERSE OF X(125) IN THE BROCARD CIRCLE (0.5788, 0.1496) X_16 = 2nd ISODYNAMIC POINT (1.8453, 2.3239) X_1147 = ISOGONAL CONJUGATE OF X(847) (0.8329, 0.3027) X_3206 = -CEVA CONJUGATE OF X(62) (0.5890, -0.1843) A B C X54 X62 X13 X49 X18 X110 X14 X156 X61 X184 X16 X1147 X3206 (a, b, c) = (5, 6, 7) | AB = 1

X3206 (X54-CEVA CONJUGATE OF X62) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3206 = X_54-CEVA CONJUGATE OF X_62."""

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


        def construct_x_03206(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3206 = X_54-CEVA CONJUGATE OF X_62 on reference triangle ABC."""
            X_54 = eval_trilinear_point(model, A, B, C, 'sec(B - C)', ID="X_54", classes=["center"])
            X_62 = eval_trilinear_point(model, A, B, C, 'sin(A -  pi  /6)', ID="X_62", classes=["center"])
            X_3206 = ceva_conjugate(model, A, B, C, X_54, X_62, ID="X_3206", classes=["selected", "target"])
            X_13 = eval_trilinear_point(model, A, B, C, 'csc(A +  pi  /3)', ID="X_13", classes=["center", "incident"])
            central_line(model, X_13, X_54, 13, 54, incident=True)
            X_49 = eval_trilinear_point(model, A, B, C, 'cos(3*A)', ID="X_49", classes=["center", "incident"])
            central_line(model, X_49, X_62, 49, 62, incident=True)
            X_18 = eval_trilinear_point(model, A, B, C, 'csc(A -  pi  /6)', ID="X_18", classes=["center", "incident"])
            X_110 = eval_trilinear_point(model, A, B, C, 'csc(B - C)', ID="X_110", classes=["center", "incident"])
            central_line(model, X_18, X_110, 18, 110, incident=True)
            return promote_point_to_top(model, X_3206)


        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_3206 on the given reference triangle."""
            model = create_model('X_3206 = X_54-CEVA CONJUGATE OF X_62')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03206(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-03206.json"))
            write_center_svg(
                model_acute,
                here / "x-03206.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )