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X₂₄₈¶

X₄-LINE CONJUGATE OF X₁₃₂

X₂₄₈ = crossdifference of every pair of points on line X₁₁₄ X₁₃₂

X₂₄₈ (X₄-LINE CONJUGATE OF X₁₃₂) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_248 = X_4-LINE CONJUGATE OF X_132."""

        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,
            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_00248(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_248 = X_4-LINE CONJUGATE OF X_132 on reference triangle ABC."""
            X_248 = eval_trilinear_point(model, A, B, C, 'sin(2*A)*sec(A +  omega  )', ID="X_248", classes=["selected", "target"])
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_32 = eval_trilinear_point(model, A, B, C, 'a**(3)', ID="X_32", classes=["center", "incident"])
            central_line(model, X_4, X_32, 4, 32, incident=True)
            X_39 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) + c**(2))', ID="X_39", classes=["center", "incident"])
            X_54 = eval_trilinear_point(model, A, B, C, 'sec(B - C)', ID="X_54", classes=["center", "incident"])
            central_line(model, X_39, X_54, 39, 54, incident=True)
            X_50 = eval_trilinear_point(model, A, B, C, 'sin(3*A)', ID="X_50", classes=["center", "incident"])
            X_67 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(4) + c**(4) - a**(4) - b**(2)*c**(2))', ID="X_67", classes=["center", "incident"])
            central_line(model, X_50, X_67, 50, 67, incident=True)
            return promote_point_to_top(model, X_248)


        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_248 on the given reference triangle."""
            model = create_model('X_248 = X_4-LINE CONJUGATE OF X_132')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00248(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-00248.json"))
            write_center_svg(
                model_acute,
                here / "x-00248.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X248¶

X₂₄₈¶