X558

(X1,X57)-ANSWER TO QUESTION A

X558 = X2-Ceva conjugate of X39122
< 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) { 2, 178 }: Central Line L(2, 178) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2 = CENTROID (0.5374, 0.2000) X_178 = 2nd MID-ARC POINT (0.5439, 0.2098) X_558 = (X(1),X(57))-ANSWER TO QUESTION A (0.6164, 0.3210) A B C X2 X178 X558 (a, b, c) = (5, 6, 7) | AB = 1

X558 ((X1,X57)-ANSWER TO QUESTION A) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_558 = (X_1,X_57)-ANSWER TO QUESTION A."""

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


        def construct_x_00558(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_558 = (X_1,X_57)-ANSWER TO QUESTION A on reference triangle ABC."""
            X_558 = eval_trilinear_point(model, A, B, C, 'sec(A/2)*tan(A/4)', ID="X_558", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_178 = eval_trilinear_point(model, A, B, C, '(cos(B/2) + cos(C/2))*csc(A)', ID="X_178", classes=["center", "incident"])
            central_line(model, X_2, X_178, 2, 178, incident=True)
            return promote_point_to_top(model, X_558)


        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_558 on the given reference triangle."""
            model = create_model('X_558 = (X_1,X_57)-ANSWER TO QUESTION A')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00558(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-00558.json"))
            write_center_svg(
                model_acute,
                here / "x-00558.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )