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X₈₄₇¶

X₅-CROSS CONJUGATE OF X₄

X₈₄₇ = barycentric product X₉₁*X₉₂

X₈₄₇ (X₅-CROSS CONJUGATE OF X₄) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_847 = X_5-CROSS CONJUGATE OF X_4."""

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


        def construct_x_00847(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_847 = X_5-CROSS CONJUGATE OF X_4 on reference triangle ABC."""
            X_847 = eval_trilinear_point(model, A, B, C, 'sec(A)*sec(2*A)', ID="X_847", classes=["selected", "target"])
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_52 = eval_trilinear_point(model, A, B, C, 'cos(2*A)*cos(B - C)', ID="X_52", classes=["center", "incident"])
            central_line(model, X_4, X_52, 4, 52, incident=True)
            X_24 = eval_trilinear_point(model, A, B, C, 'sec(A)*cos(2*A)', ID="X_24", classes=["center", "incident"])
            X_96 = eval_trilinear_point(model, A, B, C, 'sec(2*A)*sec(B - C)', ID="X_96", classes=["center", "incident"])
            central_line(model, X_24, X_96, 24, 96, incident=True)
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_254 = eval_trilinear_point(model, A, B, C, '(sec(A))/((cos(B))**(2) + (cos(C))**(2) - (cos(A))**(2))', ID="X_254", classes=["center", "incident"])
            central_line(model, X_2, X_254, 2, 254, incident=True)
            return promote_point_to_top(model, X_847)


        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_847 on the given reference triangle."""
            model = create_model('X_847 = X_5-CROSS CONJUGATE OF X_4')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00847(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-00847.json"))
            write_center_svg(
                model_acute,
                here / "x-00847.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X847¶

X₈₄₇¶