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X₃₉₂₃¶

X₁com(1st BROCARD TRIANGLE)

X₃₉₂₃ (X₁com(1st BROCARD TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_3923 = X_1com(1st BROCARD TRIANGLE)."""

        from __future__ import annotations

        from pathlib import Path

        import sympy.geometry as spg
        from geometor.model import Model

        from geometor.etc.ops import (
            anticomplement,
            central_line,
            construct_baseline_triangle,
            create_model,
            eval_barycentric_point,
            eval_trilinear_point,
            incenter_of,
            mittenpunkt_of,
            orthocenter_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03923(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3923 = X_1com(1st BROCARD TRIANGLE) on reference triangle ABC."""
            X_3821 = eval_barycentric_point(model, A, B, C, '(b**(3) + c**(3) + a**(2)*b + a**(2)*c + a*b**(2) + a*c**(2))', ID="X_3821", classes=["center"])
            X_3923 = anticomplement(model, A, B, C, X_3821, ID="X_3923", classes=["selected", "target"])
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_9 = mittenpunkt_of(model, A, B, C, ID="X_9", classes=["center", "incident"])
            central_line(model, X_4, X_9, 4, 9, incident=True)
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_87 = eval_trilinear_point(model, A, B, C, '1/(a*b + a*c - b*c)', ID="X_87", classes=["center", "incident"])
            central_line(model, X_1, X_87, 1, 87, incident=True)
            X_75 = eval_trilinear_point(model, A, B, C, '1/a**(2)', ID="X_75", classes=["center", "incident"])
            X_238 = eval_trilinear_point(model, A, B, C, 'a**(2) - b*c', ID="X_238", classes=["center", "incident"])
            central_line(model, X_75, X_238, 75, 238, incident=True)
            return promote_point_to_top(model, X_3923)


        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_3923 on the given reference triangle."""
            model = create_model('X_3923 = X_1com(1st BROCARD TRIANGLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03923(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-03923.json"))
            write_center_svg(
                model_acute,
                here / "x-03923.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X3923¶

X₃₉₂₃¶