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X₃₀₁¶

ISOTOMIC CONJUGATE OF 2nd ISODYNAMIC CENTER

X₃₀₁ is the isotomic conjugate of 2nd isodynamic center.

X₃₀₁ (ISOTOMIC CONJUGATE OF 2nd ISODYNAMIC CENTER) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_301 = ISOTOMIC CONJUGATE OF 2nd ISODYNAMIC CENTER."""

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


        def construct_x_00301(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_301 = ISOTOMIC CONJUGATE OF 2nd ISODYNAMIC CENTER on reference triangle ABC."""
            X_16 = eval_trilinear_point(model, A, B, C, 'sin(A-  pi  /3)', ID="X_16", classes=["center"])
            X_301 = isotomic_conjugate(model, A, B, C, X_16, ID="X_301", classes=["selected", "target"])
            X_14 = eval_trilinear_point(model, A, B, C, 'csc(A -  pi  /3)', ID="X_14", 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_14, X_76, 14, 76, incident=True)
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_94 = eval_trilinear_point(model, A, B, C, 'csc(3*A)', ID="X_94", classes=["center", "incident"])
            central_line(model, X_2, X_94, 2, 94, incident=True)
            X_264 = eval_trilinear_point(model, A, B, C, 'csc(A)*csc(2*A)', ID="X_264", classes=["center", "incident"])
            X_303 = eval_trilinear_point(model, A, B, C, '(csc(A))**(2)*sin(A -  pi  /6)', ID="X_303", classes=["center", "incident"])
            central_line(model, X_264, X_303, 264, 303, incident=True)
            return promote_point_to_top(model, X_301)


        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_301 on the given reference triangle."""
            model = create_model('X_301 = ISOTOMIC CONJUGATE OF 2nd ISODYNAMIC CENTER')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00301(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-00301.json"))
            write_center_svg(
                model_acute,
                here / "x-00301.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X301¶

X₃₀₁¶