X252

ISOGONAL CONJUGATE OF X143

< 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) { 54, 140 }: Central Line L(54, 140) { 93, 186 }: Central Line L(93, 186) { 3, 930 }: Central Line L(3, 930) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_143 = NINE-POINT CENTER OF ORTHIC TRIANGLE (0.6358, 0.3534) X_54 = KOSNITA POINT (0.5880, 0.2176) X_140 = MIDPOINT OF X(3) AND X(5) (0.5281, 0.1755) X_93 = ISOGONAL CONJUGATE OF X(49) (0.5299, 0.2878) X_186 = INVERSE-IN-CIRCUMCIRCLE OF X(4) (0.7957, 0.8758) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_930 = ANTICOMPLEMENT OF X(137) (0.0497, 0.3422) X_252 = ISOGONAL CONJUGATE OF X(143) (0.4565, 0.1253) A B C X143 X54 X140 X93 X186 X3 X930 X252 (a, b, c) = (5, 6, 7) | AB = 1

X252 (ISOGONAL CONJUGATE OF X143) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_252 = ISOGONAL CONJUGATE OF X_143."""

        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,
            circumcenter_of,
            construct_baseline_triangle,
            create_model,
            eval_barycentric_point,
            eval_trilinear_point,
            isogonal_conjugate,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_00252(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_252 = ISOGONAL CONJUGATE OF X_143 on reference triangle ABC."""
            X_143 = eval_trilinear_point(model, A, B, C, '(sec(A))*(cos(2*C - 2*A) + cos(2*A - 2*B))', ID="X_143", classes=["center"])
            X_252 = isogonal_conjugate(model, A, B, C, X_143, ID="X_252", classes=["selected", "target"])
            X_54 = eval_trilinear_point(model, A, B, C, 'sec(B - C)', ID="X_54", classes=["center", "incident"])
            X_140 = eval_trilinear_point(model, A, B, C, '2*cos(A) + cos(B - C)', ID="X_140", classes=["center", "incident"])
            central_line(model, X_54, X_140, 54, 140, incident=True)
            X_93 = eval_trilinear_point(model, A, B, C, 'sec(3*A)', ID="X_93", classes=["center", "incident"])
            X_186 = eval_trilinear_point(model, A, B, C, '4*cos(A) - sec(A)', ID="X_186", classes=["center", "incident"])
            central_line(model, X_93, X_186, 93, 186, incident=True)
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
            X_930 = eval_barycentric_point(model, A, B, C, '1/((b**(2) - c**(2))*(a**(4) + b**(4) + c**(4) - 2*a**(2)*b**(2) - 2*a**(2)*c**(2) - b**(2)*c**(2)))', ID="X_930", classes=["center", "incident"])
            central_line(model, X_3, X_930, 3, 930, incident=True)
            return promote_point_to_top(model, X_252)


        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_252 on the given reference triangle."""
            model = create_model('X_252 = ISOGONAL CONJUGATE OF X_143')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00252(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-00252.json"))
            write_center_svg(
                model_acute,
                here / "x-00252.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )