X693

ISOTOMIC CONJUGATE OF X100

< 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) { 2, 650 }: Central Line L(2, 650) { 320, 350 }: Central Line L(320, 350) { 325, 523 }: Central Line L(325, 523) { 514, 661 }: Central Line L(514, 661) { 76, 764 }: Central Line L(76, 764) { 100, 927 }: Central Line L(100, 927) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.1429, 0.4666) X_2 = CENTROID (0.5374, 0.2000) X_650 = CROSSDIFFERENCE OF X(1) AND X(3) (13.7143, -4.1991) X_320 = ISOTOMIC CONJUGATE OF X(80) (-2.6735, -3.5993) X_350 = -HIRST INVERSE OF X(75) (-3.5227, -3.1370) X_325 = -HIRST INVERSE OF X(69) (-0.3370, -0.7398) X_523 = ISOGONAL CONJUGATE OF X(110) (1.0856, -0.0096) X_514 = ISOGONAL CONJUGATE OF X(101) (1.0761, -0.0329) X_661 = CROSSDIFFERENCE OF X(1) AND X(21) (48.4286, -23.0952) X_76 = 3rd BROCARD POINT (0.4567, 0.1388) X_764 = TRILINEAR CUBE OF X(513) (1.2143, -0.1166) X_927 = ISOGONAL CONJUGATE OF X(926) (1.0037, 0.1836) X_693 = ISOTOMIC CONJUGATE OF X(100) (-25.8163, 8.9981) A B C X100 X2 X650 X320 X350 X325 X523 X514 X661 X76 X764 X927 X693 (a, b, c) = (5, 6, 7) | AB = 1

X693 (ISOTOMIC CONJUGATE OF X100) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_693 = ISOTOMIC CONJUGATE OF X_100."""

        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,
            centroid_of,
            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_00693(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_693 = ISOTOMIC CONJUGATE OF X_100 on reference triangle ABC."""
            X_692 = eval_trilinear_point(model, A, B, C, 'a**(2)/(b - c)', ID="X_692", classes=["center"])
            X_693 = isogonal_conjugate(model, A, B, C, X_692, ID="X_693", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_650 = eval_trilinear_point(model, A, B, C, 'cos(B) - cos(C)', ID="X_650", classes=["center", "incident"])
            central_line(model, X_2, X_650, 2, 650, incident=True)
            X_320 = eval_trilinear_point(model, A, B, C, '(1 - 2*cos(A))/a**(2)', ID="X_320", classes=["center", "incident"])
            X_350 = eval_trilinear_point(model, A, B, C, '(a**(2) - b*c)*b**(2)*c**(2)', ID="X_350", classes=["center", "incident"])
            central_line(model, X_320, X_350, 320, 350, incident=True)
            X_325 = eval_trilinear_point(model, A, B, C, '(csc(A))**(2)', ID="X_325", 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_325, X_523, 325, 523, incident=True)
            return promote_point_to_top(model, X_693)


        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_693 on the given reference triangle."""
            model = create_model('X_693 = ISOTOMIC CONJUGATE OF X_100')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00693(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-00693.json"))
            write_center_svg(
                model_acute,
                here / "x-00693.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )