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X₂₅₈₁¶

X₆-ISOCONJUGATE OF X₂₅₇₅

X₂₅₈₁ (X₆-ISOCONJUGATE OF X₂₅₇₅) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_2581 = X_6-ISOCONJUGATE OF X_2575."""

        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_trilinear_point,
            isogonal_conjugate,
            point_from_barycentrics,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02581(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2581 = X_6-ISOCONJUGATE OF X_2575 on reference triangle ABC."""
            X_2579 = point_from_barycentrics(model, A, B, C, -1.2817064, -2.9239046, 5.205611, ID="X_2579", classes=["center"])
            X_2581 = isogonal_conjugate(model, A, B, C, X_2579, ID="X_2581", classes=["selected", "target"])
            X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", classes=["center", "incident"])
            X_27 = eval_trilinear_point(model, A, B, C, '(sec(A))/(b + c)', ID="X_27", classes=["center", "incident"])
            central_line(model, X_19, X_27, 19, 27, incident=True)
            X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
            X_1114 = eval_trilinear_point(model, A, B, C, '(R + d)*cos(A) - 2*R*cos(B)*cos(C)', ID="X_1114", classes=["center", "incident"])
            central_line(model, X_100, X_1114, 100, 1114, incident=True)
            X_162 = eval_trilinear_point(model, A, B, C, '1/(sin(2*B) - sin(2*C))', ID="X_162", classes=["center", "incident"])
            X_1823 = point_from_barycentrics(model, A, B, C, 0.72123578, 0.4152025, -0.13643829, ID="X_1823", classes=["center", "incident"])
            central_line(model, X_162, X_1823, 162, 1823, incident=True)
            return promote_point_to_top(model, X_2581)


        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_2581 on the given reference triangle."""
            model = create_model('X_2581 = X_6-ISOCONJUGATE OF X_2575')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02581(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-02581.json"))
            write_center_svg(
                model_acute,
                here / "x-02581.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X2581¶

X₂₅₈₁¶