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X₁₄₂₉¶

X₂₃₉-BETH CONJUGATE OF X₂₃₉

X₁₄₂₉ = crossdifference of every pair of points on line X₂₁₀ X₆₅₀

X₁₄₂₉ (X₂₃₉-BETH CONJUGATE OF X₂₃₉) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_1429 = X_239-BETH CONJUGATE OF X_239."""

        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,
            gergonne_point_of,
            incenter_of,
            intersect_lines,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01429(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1429 = X_239-BETH CONJUGATE OF X_239 on reference triangle ABC."""
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            X_83 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) + c**(2))', ID="X_83", classes=["center"])
            X_226 = eval_trilinear_point(model, A, B, C, '(csc(A))*(cos(B) + cos(C))', ID="X_226", classes=["center"])
            central_line(model, X_1, X_3, 1, 3)
            central_line(model, X_83, X_226, 83, 226)
            X_1429 = intersect_lines(model, X_1, X_3, X_83, X_226, ID="X_1429", classes=["selected", "target"])
            X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center", "incident"])
            X_604 = eval_trilinear_point(model, A, B, C, 'a*(1 - cos(A))', ID="X_604", classes=["center", "incident"])
            central_line(model, X_7, X_604, 7, 604, incident=True)
            return promote_point_to_top(model, X_1429)


        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_1429 on the given reference triangle."""
            model = create_model('X_1429 = X_239-BETH CONJUGATE OF X_239')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01429(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-01429.json"))
            write_center_svg(
                model_acute,
                here / "x-01429.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X1429¶

X₁₄₂₉¶