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X₆₃₉¶

COMPLEMENT OF X₃₇₁

X₆₃₉ (COMPLEMENT OF X₃₇₁) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_639 = COMPLEMENT OF X_371."""

        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,
            intersect_lines,
            nine_point_center_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_00639(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_639 = COMPLEMENT OF X_371 on reference triangle ABC."""
            X_5 = nine_point_center_of(model, A, B, C, ID="X_5", classes=["center"])
            X_141 = eval_trilinear_point(model, A, B, C, 'b*c*(b**(2) + c**(2))', ID="X_141", classes=["center"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center"])
            X_371 = eval_trilinear_point(model, A, B, C, 'cos(A -  pi  /4)', ID="X_371", classes=["center"])
            central_line(model, X_5, X_141, 5, 141)
            central_line(model, X_2, X_371, 2, 371)
            X_639 = intersect_lines(model, X_5, X_141, X_2, X_371, ID="X_639", classes=["selected", "target"])
            X_69 = eval_trilinear_point(model, A, B, C, '(cos(A))/a**(2)', ID="X_69", classes=["center", "incident"])
            X_485 = eval_trilinear_point(model, A, B, C, 'sec(A -  pi  /4)', ID="X_485", classes=["center", "incident"])
            central_line(model, X_69, X_485, 69, 485, incident=True)
            return promote_point_to_top(model, X_639)


        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_639 on the given reference triangle."""
            model = create_model('X_639 = COMPLEMENT OF X_371')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00639(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-00639.json"))
            write_center_svg(
                model_acute,
                here / "x-00639.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X639¶

X₆₃₉¶