X2143

ISOGONAL CONJUGATE OF X2142

< 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) { 512, 2142 }: Central Line L(512, 2142) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_99 = STEINER POINT (0.1109, 0.4322) X_512 = ISOGONAL CONJUGATE OF X(99) (1.0394, -0.1040) X_2142 = EIGENTRANSFORM OF X(512) (1.4413, -1.0865) X_2143 = ISOGONAL CONJUGATE OF X(2142) (-0.0295, -0.1959) A B C X99 X512 X2142 X2143 (a, b, c) = (5, 6, 7) | AB = 1

X2143 (ISOGONAL CONJUGATE OF X2142) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2143 = ISOGONAL CONJUGATE OF X_2142."""

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


        def construct_x_02143(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2143 = ISOGONAL CONJUGATE OF X_2142 on reference triangle ABC."""
            X_2142 = point_from_barycentrics(model, A, B, C, 0.26100517, 2.5501505, -1.8111556, ID="X_2142", classes=["center"])
            X_2143 = isogonal_conjugate(model, A, B, C, X_2142, ID="X_2143", classes=["selected", "target"])
            X_512 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) - c**(2))', ID="X_512", classes=["center", "incident"])
            central_line(model, X_512, X_2142, 512, 2142, incident=True)
            return promote_point_to_top(model, X_2143)


        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_2143 on the given reference triangle."""
            model = create_model('X_2143 = ISOGONAL CONJUGATE OF X_2142')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02143(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-02143.json"))
            write_center_svg(
                model_acute,
                here / "x-02143.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )