X895

ISOGONAL CONJUGATE OF X468

< 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) { 193, 3448 }: Central Line L(193, 3448) { 6, 110 }: Central Line L(6, 110) { 69, 125 }: Central Line L(69, 125) { 66, 193 }: Central Line L(66, 193) { 4, 542 }: Central Line L(4, 542) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_193 = -CEVA CONJUGATE OF X(2) (0.7878, 0.4690) X_3448 = ISOGONAL CONJUGATE OF X(3447) (1.1090, -0.4958) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_69 = SYMMEDIAN POINT OF THE ANTICOMPLEMENTARY TRIANGLE (0.4122, 0.0654) X_125 = CENTER OF JERABEK HYPERBOLA (0.6803, 0.0260) X_66 = ISOGONAL CONJUGATE OF X(22) (0.5912, 1.0593) X_4 = ORTHOCENTER (0.6122, 0.3958) X_542 = DIRECTION OF VECTOR AX + BX + CX, where X = X(98) (0.1649, 0.6534) X_895 = ISOGONAL CONJUGATE OF X(468) (0.9484, -0.0134) A B C X193 X3448 X6 X110 X69 X125 X66 X4 X542 X895 (a, b, c) = (5, 6, 7) | AB = 1

X895 (ISOGONAL CONJUGATE OF X468) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_895 = ISOGONAL CONJUGATE OF X_468."""

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


        def construct_x_00895(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_895 = ISOGONAL CONJUGATE OF X_468 on reference triangle ABC."""
            X_895 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) + c**(2) - a**(2))/(b**(2) + c**(2) - 2*a**(2))', ID="X_895", classes=["selected", "target"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            X_110 = eval_trilinear_point(model, A, B, C, 'csc(B - C)', ID="X_110", classes=["center", "incident"])
            central_line(model, X_6, X_110, 6, 110, incident=True)
            X_69 = eval_trilinear_point(model, A, B, C, '(cos(A))/a**(2)', ID="X_69", classes=["center", "incident"])
            X_125 = eval_trilinear_point(model, A, B, C, 'cos(A)*(sin(B - C))**(2)', ID="X_125", classes=["center", "incident"])
            central_line(model, X_69, X_125, 69, 125, incident=True)
            X_66 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(4) + c**(4) - a**(4))', ID="X_66", classes=["center", "incident"])
            X_193 = eval_trilinear_point(model, A, B, C, '(csc(A))*(cot(B) + cot(C) - cot(A))', ID="X_193", classes=["center", "incident"])
            central_line(model, X_66, X_193, 66, 193, incident=True)
            return promote_point_to_top(model, X_895)


        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_895 on the given reference triangle."""
            model = create_model('X_895 = ISOGONAL CONJUGATE OF X_468')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00895(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-00895.json"))
            write_center_svg(
                model_acute,
                here / "x-00895.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )