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X₂₇₈₃¶

ISOGONAL CONJUGATE OF X₂₆₉₉

X₂₇₈₃ is the isogonal conjugate of X₂₆₉₉.

X₂₇₈₃ (ISOGONAL CONJUGATE OF X₂₆₉₉) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_2783 = ISOGONAL CONJUGATE OF X_2699."""

        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,
            feuerbach_point_of,
            isogonal_conjugate,
            point_from_barycentrics,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02783(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2783 = ISOGONAL CONJUGATE OF X_2699 on reference triangle ABC."""
            X_2699 = point_from_barycentrics(model, A, B, C, 0.82718162, -0.2432613, 0.41607968, ID="X_2699", classes=["center"])
            X_2783 = isogonal_conjugate(model, A, B, C, X_2699, ID="X_2783", classes=["selected", "target"])
            X_11 = feuerbach_point_of(model, A, B, C, ID="X_11", classes=["center", "incident"])
            X_114 = eval_trilinear_point(model, A, B, C, 'b*c*(b*sec(B +  omega  ) + c*sec(C +  omega  ))', ID="X_114", classes=["center", "incident"])
            central_line(model, X_11, X_114, 11, 114, incident=True)
            X_98 = eval_trilinear_point(model, A, B, C, 'sec(A +  omega  )', ID="X_98", classes=["center", "incident"])
            X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
            central_line(model, X_98, X_100, 98, 100, incident=True)
            X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
            X_104 = eval_trilinear_point(model, A, B, C, '1/(-1 + cos(B) + cos(C))', ID="X_104", classes=["center", "incident"])
            central_line(model, X_99, X_104, 99, 104, incident=True)
            return promote_point_to_top(model, X_2783)


        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_2783 on the given reference triangle."""
            model = create_model('X_2783 = ISOGONAL CONJUGATE OF X_2699')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02783(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-02783.json"))
            write_center_svg(
                model_acute,
                here / "x-02783.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X2783¶

X₂₇₈₃¶