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X₄₇₂¶

X₆₂-CROSS CONJUGATE OF X₃₀₃

X₄₇₂ = orthocentroidal-circle-inverse of X₄₇₃

X₄₇₂ (X₆₂-CROSS CONJUGATE OF X₃₀₃) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_472 = X_62-CROSS CONJUGATE OF X_303."""

        from __future__ import annotations

        from pathlib import Path

        import sympy.geometry as spg
        from geometor.model import Model

        from geometor.etc.ops import (
            anticomplement,
            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_00472(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_472 = X_62-CROSS CONJUGATE OF X_303 on reference triangle ABC."""
            X_466 = point_from_barycentrics(model, A, B, C, 0.46465913, 0.4148459, 0.12049497, ID="X_466", classes=["center"])
            X_472 = anticomplement(model, A, B, C, X_466, ID="X_472", 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_13 = eval_trilinear_point(model, A, B, C, 'csc(A +  pi  /3)', ID="X_13", classes=["center", "incident"])
            X_275 = eval_trilinear_point(model, A, B, C, 'csc(2*A)*sec(B - C)', ID="X_275", classes=["center", "incident"])
            central_line(model, X_13, X_275, 13, 275, incident=True)
            X_53 = eval_trilinear_point(model, A, B, C, 'tan(A)*cos(B - C)', ID="X_53", classes=["center", "incident"])
            X_395 = eval_trilinear_point(model, A, B, C, 'cos(B - C) + 2*cos(A +  pi  /3)', ID="X_395", classes=["center", "incident"])
            central_line(model, X_53, X_395, 53, 395, incident=True)
            return promote_point_to_top(model, X_472)


        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_472 on the given reference triangle."""
            model = create_model('X_472 = X_62-CROSS CONJUGATE OF X_303')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00472(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-00472.json"))
            write_center_svg(
                model_acute,
                here / "x-00472.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X472¶

X₄₇₂¶