X892

ISOGONAL CONJUGATE OF X351

< 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) { 111, 381 }: Central Line L(111, 381) { 99, 523 }: Central Line L(99, 523) { 316, 524 }: Central Line L(316, 524) { 670, 850 }: Central Line L(670, 850) { 805, 888 }: Central Line L(805, 888) { 880, 886 }: Central Line L(880, 886) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_351 = CENTER OF THE PARRY CIRCLE (1.3537, 1.1619) X_111 = PARRY POINT (0.9885, -0.0457) X_381 = MIDPOINT OF X(2) AND X(4) (0.5748, 0.2979) X_99 = STEINER POINT (0.1109, 0.4322) X_523 = ISOGONAL CONJUGATE OF X(110) (1.0856, -0.0096) X_316 = DROUSSENT PIVOT (-0.7850, -1.9118) X_524 = ISOGONAL CONJUGATE OF X(111) (0.1376, -0.2297) X_670 = TRILINEAR POLE OF LINE X(2)X(39) (-0.0057, 0.2948) X_850 = BARYCENTRIC MULTIPLIER FOR KIEPERT HYPERBOLA (-6.8003, 1.7304) X_805 = o-(- 2, 2) CIRCUMCIRCLE POINT (0.9729, -0.0897) X_888 = ISOTOMIC CONJUGATE OF X(886) (0.2587, -0.3165) X_880 = INTERSECTION OF LINES X(6)X(76) AND X(99)X(670) (-2.0234, -2.0829) X_886 = INTERSECTION OF LINES X(99)X(669) AND X(512)X(670) (0.7371, -0.1549) X_892 = ISOGONAL CONJUGATE OF X(351) (1.0590, 0.0699) A B C X351 X111 X381 X99 X523 X316 X524 X670 X850 X805 X888 X880 X886 X892 (a, b, c) = (5, 6, 7) | AB = 1

X892 (ISOGONAL CONJUGATE OF X351) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_892 = ISOGONAL CONJUGATE OF X_351."""

        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_00892(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_892 = ISOGONAL CONJUGATE OF X_351 on reference triangle ABC."""
            X_351 = eval_trilinear_point(model, A, B, C, '(a*(b**(2) - c**(2))*(b**(2) + c**(2) - 2*a**(2)))', ID="X_351", classes=["center"])
            X_892 = isogonal_conjugate(model, A, B, C, X_351, ID="X_892", classes=["selected", "target"])
            X_111 = eval_trilinear_point(model, A, B, C, 'a/(2*a**(2) - b**(2) - c**(2))', ID="X_111", classes=["center", "incident"])
            X_381 = eval_trilinear_point(model, A, B, C, '2*cos(B - C) - cos(A)', ID="X_381", classes=["center", "incident"])
            central_line(model, X_111, X_381, 111, 381, incident=True)
            X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
            X_523 = eval_trilinear_point(model, A, B, C, 'sin(B -C)', ID="X_523", classes=["center", "incident"])
            central_line(model, X_99, X_523, 99, 523, incident=True)
            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"])
            X_524 = eval_trilinear_point(model, A, B, C, '(2*a**(2) - b**(2) - c**(2))/a', ID="X_524", classes=["center", "incident"])
            central_line(model, X_316, X_524, 316, 524, incident=True)
            return promote_point_to_top(model, X_892)


        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_892 on the given reference triangle."""
            model = create_model('X_892 = ISOGONAL CONJUGATE OF X_351')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00892(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-00892.json"))
            write_center_svg(
                model_acute,
                here / "x-00892.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )