X3268

ISOTOMIC CONJUGATE OF X476

< 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) { 99, 110 }: Central Line L(99, 110) { 325, 523 }: Central Line L(325, 523) { 2, 1637 }: Central Line L(2, 1637) { 525, 1636 }: Central Line L(525, 1636) { 147, 2793 }: Central Line L(147, 2793) { 339, 2972 }: Central Line L(339, 2972) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_476 = TIXIER POINT (0.9824, 0.2685) X_99 = STEINER POINT (0.1109, 0.4322) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_325 = -HIRST INVERSE OF X(69) (-0.3370, -0.7398) X_523 = ISOGONAL CONJUGATE OF X(110) (1.0856, -0.0096) X_2 = CENTROID (0.5374, 0.2000) X_1637 = TRIPOLAR CENTROID OF X(4) (1.3086, 0.5422) X_525 = ISOGONAL CONJUGATE OF X(112) (-0.0468, 0.2556) X_1636 = TRIPOLAR CENTROID OF X(3) (-3.1554, -0.2797) X_147 = TARRY POINT OF ANTICOMPLEMENTARY TRIANGLE (-0.1660, 1.0561) X_2793 = ISOGONAL CONJUGATE OF X(2709) (0.2567, -0.3154) X_339 = ISOTOMIC CONJUGATE OF X(250) (0.6002, 0.0170) X_2972 = 6th MACBEATH POINT (0.5552, 0.0030) X_3268 = ISOTOMIC CONJUGATE OF X(476) (-1.0050, -0.4845) A B C X476 X99 X110 X325 X523 X2 X1637 X525 X1636 X147 X2793 X339 X2972 X3268 (a, b, c) = (5, 6, 7) | AB = 1

X3268 (ISOTOMIC CONJUGATE OF X476) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3268 = ISOTOMIC CONJUGATE OF X_476."""

        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_barycentric_point,
            eval_trilinear_point,
            isotomic_conjugate,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03268(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3268 = ISOTOMIC CONJUGATE OF X_476 on reference triangle ABC."""
            X_476 = eval_trilinear_point(model, A, B, C, '1/((1 + 2*cos(2*A))*sin(B - C))', ID="X_476", classes=["center"])
            X_3268 = isotomic_conjugate(model, A, B, C, X_476, ID="X_3268", classes=["selected", "target"])
            X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", 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_99, X_110, 99, 110, 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)
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_1637 = eval_barycentric_point(model, A, B, C, 'tan(A)*(tan(B) - tan(C))*(tan(B) + tan(C) - 2*tan(A))', ID="X_1637", classes=["center", "incident"])
            central_line(model, X_2, X_1637, 2, 1637, incident=True)
            return promote_point_to_top(model, X_3268)


        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_3268 on the given reference triangle."""
            model = create_model('X_3268 = ISOTOMIC CONJUGATE OF X_476')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03268(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-03268.json"))
            write_center_svg(
                model_acute,
                here / "x-03268.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )