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X₃₉₃₉¶

X₁₀₈₆com[INVERSE(n(INTOUCH TRIANGLE))]

X₃₉₃₉ (X₁₀₈₆com[INVERSE(n(INTOUCH TRIANGLE))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_3939 = X_1086com[INVERSE(n(INTOUCH TRIANGLE))]."""

        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_barycentric_point,
            eval_trilinear_point,
            isogonal_conjugate,
            mittenpunkt_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03939(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3939 = X_1086com[INVERSE(n(INTOUCH TRIANGLE))] on reference triangle ABC."""
            X_3676 = eval_barycentric_point(model, A, B, C, '(b - c)/(b + c - a)', ID="X_3676", classes=["center"])
            X_3939 = isogonal_conjugate(model, A, B, C, X_3676, ID="X_3939", classes=["selected", "target"])
            X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
            X_109 = eval_trilinear_point(model, A, B, C, 'a/(cos(B) - cos(C))', ID="X_109", classes=["center", "incident"])
            central_line(model, X_100, X_109, 100, 109, incident=True)
            X_9 = mittenpunkt_of(model, A, B, C, ID="X_9", classes=["center", "incident"])
            X_294 = eval_trilinear_point(model, A, B, C, '((b + c - a)/(b**(2) + c**(2) - a*b - a*c))', ID="X_294", classes=["center", "incident"])
            central_line(model, X_9, X_294, 9, 294, incident=True)
            X_200 = eval_trilinear_point(model, A, B, C, '(cot(A/2))**(2)', ID="X_200", classes=["center", "incident"])
            X_212 = eval_trilinear_point(model, A, B, C, '(cos(A))*(1 + cos(A))', ID="X_212", classes=["center", "incident"])
            central_line(model, X_200, X_212, 200, 212, incident=True)
            return promote_point_to_top(model, X_3939)


        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_3939 on the given reference triangle."""
            model = create_model('X_3939 = X_1086com[INVERSE(n(INTOUCH TRIANGLE))]')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03939(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-03939.json"))
            write_center_svg(
                model_acute,
                here / "x-03939.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X3939¶

X₃₉₃₉¶