X679

ISOGONAL CONJUGATE OF X678

< A B C >: Reference Triangle △ABC [ A B ]: Sideline AB (Base c = 1) [ B C ]: Sideline BC (Side a) [ C A ]: Sideline CA (Side b) { 44, 88 }: Central Line L(44, 88) { 320, 519 }: Central Line L(320, 519) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_678 = CROSSPOINT OF X(1) AND X(44) (0.3571, 0.3499) X_44 = -LINE CONJUGATE OF X(1) (2.1429, 2.0996) X_88 = ISOGONAL CONJUGATE OF X(44) (1.0000, 0.0000) X_320 = ISOTOMIC CONJUGATE OF X(80) (-2.6735, -3.5993) X_519 = ISOGONAL CONJUGATE OF X(106) (0.9566, 0.6107) X_679 = ISOGONAL CONJUGATE OF X(678) (1.0000, 0.0000) A B C X678 X44 X88 X320 X519 X679 (a, b, c) = (5, 6, 7) | AB = 1

X679 (ISOGONAL CONJUGATE OF X678) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_679 = ISOGONAL CONJUGATE OF X_678."""

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


        def construct_x_00679(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_679 = ISOGONAL CONJUGATE OF X_678 on reference triangle ABC."""
            X_678 = eval_trilinear_point(model, A, B, C, '((b + c - 2*a)**(2))', ID="X_678", classes=["center"])
            X_679 = isogonal_conjugate(model, A, B, C, X_678, ID="X_679", classes=["selected", "target"])
            X_44 = eval_trilinear_point(model, A, B, C, 'b + c - 2*a', ID="X_44", classes=["center", "incident"])
            X_88 = eval_trilinear_point(model, A, B, C, '1/(b + c - 2*a)', ID="X_88", classes=["center", "incident"])
            central_line(model, X_44, X_88, 44, 88, incident=True)
            X_320 = eval_trilinear_point(model, A, B, C, '(1 - 2*cos(A))/a**(2)', ID="X_320", classes=["center", "incident"])
            X_519 = eval_trilinear_point(model, A, B, C, '(2*a - b - c)/a', ID="X_519", classes=["center", "incident"])
            central_line(model, X_320, X_519, 320, 519, incident=True)
            return promote_point_to_top(model, X_679)


        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_679 on the given reference triangle."""
            model = create_model('X_679 = ISOGONAL CONJUGATE OF X_678')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00679(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-00679.json"))
            write_center_svg(
                model_acute,
                here / "x-00679.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )