X2841

ISOGONAL CONJUGATE OF X2757

< 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) { 56, 106 }: Central Line L(56, 106) { 121, 124 }: Central Line L(121, 124) { 30, 511 }: Central Line L(30, 511) { 46, 978 }: Central Line L(46, 978) { 102, 1293 }: Central Line L(102, 1293) { 1364, 2098 }: Central Line L(1364, 2098) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2757 = SR(X(106), X(109)) (0.0111, 0.2484) X_56 = EXSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.6316, 0.3438) X_106 = Λ(INCENTER, CENTROID) (1.0000, 0.0000) X_121 = -OF-MEDIAL-TRIANGLE (0.3061, 0.2999) X_124 = -OF-MEDIAL-TRIANGLE (0.6243, 0.0030) X_30 = EULER INFINITY POINT (0.7469, 0.7481) X_511 = ISOGONAL CONJUGATE OF X(98) (0.2335, -0.3020) X_46 = -CEVA CONJUGATE OF X(1) (0.6917, 0.4543) X_978 = -CEVA CONJUGATE OF X(1) (0.7456, 0.4040) X_102 = Λ(INCENTER, ORTHOCENTER) (0.6364, -0.3897) X_1293 = COLLINGS TRANSFORM OF X(121) (0.0000, 0.2041) X_1364 = BRISSE TRANSFORM OF X(108) (0.6338, 0.0085) X_2098 = REFLECTION OF X(56) IN X(1) (0.5113, 0.1228) X_2841 = ISOGONAL CONJUGATE OF X(2757) (0.9665, -0.2004) A B C X2757 X56 X106 X121 X124 X30 X511 X46 X978 X102 X1293 X1364 X2098 X2841 (a, b, c) = (5, 6, 7) | AB = 1

X2841 (ISOGONAL CONJUGATE OF X2757) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2841 = ISOGONAL CONJUGATE OF X_2757."""

        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_02841(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2841 = ISOGONAL CONJUGATE OF X_2757 on reference triangle ABC."""
            X_2757 = point_from_barycentrics(model, A, B, C, 0.82828267, -0.2424244, 0.41414173, ID="X_2757", classes=["center"])
            X_2841 = isogonal_conjugate(model, A, B, C, X_2757, ID="X_2841", classes=["selected", "target"])
            X_56 = eval_trilinear_point(model, A, B, C, 'a/(b + c - a)', ID="X_56", classes=["center", "incident"])
            X_106 = eval_trilinear_point(model, A, B, C, 'a/(2*a - b - c)', ID="X_106", classes=["center", "incident"])
            central_line(model, X_56, X_106, 56, 106, incident=True)
            X_121 = eval_trilinear_point(model, A, B, C, '(b*c*(b + c - 2*a)*(b**(3) + c**(3) + a*(b**(2) + c**(2)) - 2*b*c*(b + c)))', ID="X_121", classes=["center", "incident"])
            X_124 = eval_trilinear_point(model, A, B, C, '(b*c*(b + c - a)*(b - c)**(2)*((b + c)*(b**(2) + c**(2) - a**(2) - b*c) + a*b*c))', ID="X_124", classes=["center", "incident"])
            central_line(model, X_121, X_124, 121, 124, incident=True)
            X_30 = eval_trilinear_point(model, A, B, C, 'cos(A) - 2*cos(B)*cos(C)', ID="X_30", classes=["center", "incident"])
            X_511 = eval_trilinear_point(model, A, B, C, 'cos(A +  omega  )', ID="X_511", classes=["center", "incident"])
            central_line(model, X_30, X_511, 30, 511, incident=True)
            return promote_point_to_top(model, X_2841)


        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_2841 on the given reference triangle."""
            model = create_model('X_2841 = ISOGONAL CONJUGATE OF X_2757')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02841(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-02841.json"))
            write_center_svg(
                model_acute,
                here / "x-02841.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )