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X₅₈₂¶

HARMONIC OF X₅₀₀

X₅₈₂ = inverse-in-Brocard-circle of X₅₀₀

X₅₈₂ (HARMONIC OF X₅₀₀) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_582 = HARMONIC OF X_500."""

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


        def construct_x_00582(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_582 = HARMONIC OF X_500 on reference triangle ABC."""
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center"])
            X_283 = eval_trilinear_point(model, A, B, C, '(cos(A))/(cos(B) + cos(C))', ID="X_283", classes=["center"])
            X_474 = eval_trilinear_point(model, A, B, C, 'cos(A) - (a + b + c)/a', ID="X_474", classes=["center"])
            central_line(model, X_3, X_6, 3, 6)
            central_line(model, X_283, X_474, 283, 474)
            X_582 = intersect_lines(model, X_3, X_6, X_283, X_474, ID="X_582", classes=["selected", "target"])
            X_517 = eval_trilinear_point(model, A, B, C, '-1 + cos(B) + cos(C)', ID="X_517", classes=["center", "incident"])
            X_602 = eval_trilinear_point(model, A, B, C, '(sin(A))**(2) - cos(A)', ID="X_602", classes=["center", "incident"])
            central_line(model, X_517, X_602, 517, 602, incident=True)
            return promote_point_to_top(model, X_582)


        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_582 on the given reference triangle."""
            model = create_model('X_582 = HARMONIC OF X_500')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00582(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-00582.json"))
            write_center_svg(
                model_acute,
                here / "x-00582.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X582¶

X₅₈₂¶