X3267

ISOTOMIC CONJUGATE OF X112

< A B C >: Reference Triangle △ABC < K_a K_b K_c >: Anticomplementary Triangle △K_a K_b K_c [ A B ]: Sideline AB (Base c = 1) [ B C ]: Sideline BC (Side a) [ C A ]: Sideline CA (Side b) { 2, 2485 }: Central Line L(2, 2485) { 325, 523 }: Central Line L(325, 523) { 99, 935 }: Central Line L(99, 935) { 100, 2859 }: Central Line L(100, 2859) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) K_a = Anticomplementary Vertex K_a (1.6122, 0.5999) K_b = Anticomplementary Vertex K_b (-0.3878, 0.5999) K_c = Anticomplementary Vertex K_c (0.3878, -0.5999) X_2 = CENTROID (0.5374, 0.2000) X_2485 = RADICAL CENTER OF {CIRCUMCIRCLE, 1ST LEMOINE CIRCLE, NINE-POINT CIRCLE} (2.1894, 0.2056) X_325 = -HIRST INVERSE OF X(69) (-0.3370, -0.7398) X_523 = ISOGONAL CONJUGATE OF X(110) (1.0856, -0.0096) X_99 = STEINER POINT (0.1109, 0.4322) X_935 = POINT ALCOR (0.8281, 0.4929) X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.1429, 0.4666) X_2859 = SM(X(100), X(112)) (0.7817, 0.5276) X_3267 = ISOTOMIC CONJUGATE OF X(112) (-2.7666, 0.1888) A B C Ka Kb Kc X2 X2485 X325 X523 X99 X935 X100 X2859 X3267 (a, b, c) = (5, 6, 7) | AB = 1

X3267 (ISOTOMIC CONJUGATE OF X112) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3267 = ISOTOMIC CONJUGATE OF X_112."""

        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_03267(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3267 = ISOTOMIC CONJUGATE OF X_112 on reference triangle ABC."""
            X_112 = eval_trilinear_point(model, A, B, C, 'a/(sin(2*B) - sin(2*C))', ID="X_112", classes=["center"])
            X_3267 = isotomic_conjugate(model, A, B, C, X_112, ID="X_3267", classes=["selected", "target"])
            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_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
            X_935 = eval_barycentric_point(model, A, B, C, '1/((b**(2) - c**(2))*(b**(2) + c**(2) - a**(2))*(b**(4) + c**(4) - a**(4) - b**(2)*c**(2)))', ID="X_935", classes=["center", "incident"])
            central_line(model, X_99, X_935, 99, 935, incident=True)
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_2485 = eval_trilinear_point(model, A, B, C, '(a*(b**(2) - c**(2))*(b**(4) + c**(4) - a**(4)))', ID="X_2485", classes=["center", "incident"])
            central_line(model, X_2, X_2485, 2, 2485, incident=True)
            return promote_point_to_top(model, X_3267)


        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_3267 on the given reference triangle."""
            model = create_model('X_3267 = ISOTOMIC CONJUGATE OF X_112')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03267(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-03267.json"))
            write_center_svg(
                model_acute,
                here / "x-03267.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )