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X₄₆₀¶

POINT ANTARES

X₄₆₀ = X₂₄₁-of-orthic-triangle if ABC is acute

X₄₆₀ (POINT ANTARES) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_460 = POINT ANTARES."""

        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,
            circumcenter_of,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            point_from_barycentrics,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_00460(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_460 = POINT ANTARES on reference triangle ABC."""
            X_460 = eval_trilinear_point(model, A, B, C, '(sec(A))*(a**(2)*(2*a**(2) - b**(2) - c**(2)) + (b**(2) - c**(2))**(2))', ID="X_460", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            central_line(model, X_2, X_3, 2, 3)
            X_53 = eval_trilinear_point(model, A, B, C, 'tan(A)*cos(B - C)', ID="X_53", classes=["center", "incident"])
            X_1974 = eval_trilinear_point(model, A, B, C, 'a**(4)*cos(B)*cos(C)', ID="X_1974", classes=["center", "incident"])
            central_line(model, X_53, X_1974, 53, 1974, incident=True)
            X_685 = eval_trilinear_point(model, A, B, C, '(1/(sec(B)*(sin(C))**(3) - sec(C)*(sin(B))**(3)))', ID="X_685", classes=["center", "incident"])
            X_2065 = point_from_barycentrics(model, A, B, C, -0.14911157, 1.3061467, -0.15703517, ID="X_2065", classes=["center", "incident"])
            central_line(model, X_685, X_2065, 685, 2065, incident=True)
            return promote_point_to_top(model, X_460)


        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_460 on the given reference triangle."""
            model = create_model('X_460 = POINT ANTARES')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00460(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-00460.json"))
            write_center_svg(
                model_acute,
                here / "x-00460.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X460¶

X₄₆₀¶