X249

ISOGONAL CONJUGATE OF X115

< 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) { 186, 250 }: Central Line L(186, 250) { 187, 323 }: Central Line L(187, 323) { 297, 316 }: Central Line L(297, 316) { 110, 512 }: Central Line L(110, 512) { 99, 525 }: Central Line L(99, 525) { 648, 687 }: Central Line L(648, 687) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_115 = CENTER OF KIEPERT HYPERBOLA (0.7507, 0.0838) X_186 = INVERSE-IN-CIRCUMCIRCLE OF X(4) (0.7957, 0.8758) X_250 = ISOGONAL CONJUGATE OF X(125) (0.5892, 0.5347) X_187 = INVERSE-IN-CIRCUMCIRCLE OF X(6) (SCHOUTE CENTER) (1.1986, 1.2559) X_323 = ISOTOMIC CONJUGATE OF X(94) (-0.8839, -1.3275) X_297 = -HIRST INVERSE OF X(4) (0.8440, 1.0022) X_316 = DROUSSENT PIVOT (-0.7850, -1.9118) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_512 = ISOGONAL CONJUGATE OF X(99) (1.0394, -0.1040) X_99 = STEINER POINT (0.1109, 0.4322) X_525 = ISOGONAL CONJUGATE OF X(112) (-0.0468, 0.2556) X_648 = TRILINEAR POLE OF EULER LINE (0.4563, 0.5855) X_687 = TRILINEAR POLE OF LINE X(4)X(110) (1.3956, -3.1383) X_249 = ISOGONAL CONJUGATE OF X(115) (0.5045, 0.3948) A B C X115 X186 X250 X187 X323 X297 X316 X110 X512 X99 X525 X648 X687 X249 (a, b, c) = (5, 6, 7) | AB = 1

X249 (ISOGONAL CONJUGATE OF X115) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_249 = ISOGONAL CONJUGATE OF X_115."""

        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_00249(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_249 = ISOGONAL CONJUGATE OF X_115 on reference triangle ABC."""
            X_115 = eval_trilinear_point(model, A, B, C, 'b*c*(b**(2) - c**(2))**(2)', ID="X_115", classes=["center"])
            X_249 = isogonal_conjugate(model, A, B, C, X_115, ID="X_249", classes=["selected", "target"])
            X_186 = eval_trilinear_point(model, A, B, C, '4*cos(A) - sec(A)', ID="X_186", classes=["center", "incident"])
            X_250 = eval_trilinear_point(model, A, B, C, '(sec(A))*(csc(B - C))**(2)', ID="X_250", classes=["center", "incident"])
            central_line(model, X_186, X_250, 186, 250, incident=True)
            X_187 = eval_trilinear_point(model, A, B, C, 'a*(2*a**(2) - b**(2) - c**(2))', ID="X_187", classes=["center", "incident"])
            X_323 = eval_trilinear_point(model, A, B, C, 'sin(3*A)*(csc(A))**(2)', ID="X_323", classes=["center", "incident"])
            central_line(model, X_187, X_323, 187, 323, incident=True)
            X_297 = eval_trilinear_point(model, A, B, C, 'csc(2*A)*cos(A +  omega  )', ID="X_297", classes=["center", "incident"])
            X_316 = eval_trilinear_point(model, A, B, C, '(b*c*(b**(4) + c**(4) - a**(4) - b**(2)*c**(2)))', ID="X_316", classes=["center", "incident"])
            central_line(model, X_297, X_316, 297, 316, incident=True)
            return promote_point_to_top(model, X_249)


        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_249 on the given reference triangle."""
            model = create_model('X_249 = ISOGONAL CONJUGATE OF X_115')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00249(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-00249.json"))
            write_center_svg(
                model_acute,
                here / "x-00249.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )