X3926

X3053com[INVERSE(n(TANGENTIAL TRIANGLE))]

< 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) circumcircle: Circumcircle of △ABC { 2, 39 }: Central Line L(2, 39) { 3, 69 }: Central Line L(3, 69) { 20, 99 }: Central Line L(20, 99) { 32, 193 }: Central Line L(32, 193) { 4, 325 }: Central Line L(4, 325) { 187, 439 }: Central Line L(187, 439) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_2207 = -ISOCONJUGATE OF X(326) (0.6268, 0.5485) X_2 = CENTROID (0.5374, 0.2000) X_39 = BROCARD MIDPOINT (0.5778, 0.2305) X_69 = SYMMEDIAN POINT OF THE ANTICOMPLEMENTARY TRIANGLE (0.4122, 0.0654) X_20 = DE LONGCHAMPS POINT (0.3878, -0.1916) X_99 = STEINER POINT (0.1109, 0.4322) X_32 = 3rd POWER POINT (0.6400, 0.3332) X_193 = -CEVA CONJUGATE OF X(2) (0.7878, 0.4690) X_4 = ORTHOCENTER (0.6122, 0.3958) X_325 = -HIRST INVERSE OF X(69) (-0.3370, -0.7398) X_187 = INVERSE-IN-CIRCUMCIRCLE OF X(6) (SCHOUTE CENTER) (1.1986, 1.2559) X_439 = EULER X(193)-9th-SUBSTITUTION POINT (0.6570, 0.5128) X_3926 = com[INVERSE(n(TANGENTIAL TRIANGLE))] (0.2953, 0.0167) A B C X3 X2207 X2 X39 X69 X20 X99 X32 X193 X4 X325 X187 X439 X3926 (a, b, c) = (5, 6, 7) | AB = 1

X3926 (X3053com[INVERSE(n(TANGENTIAL TRIANGLE))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3926 = X_3053com[INVERSE(n(TANGENTIAL TRIANGLE))]."""

        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,
            circumcenter_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_03926(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3926 = X_3053com[INVERSE(n(TANGENTIAL TRIANGLE))] on reference triangle ABC."""
            X_2207 = eval_trilinear_point(model, A, B, C, '(sin(A)*(tan(A))**(2))', ID="X_2207", classes=["center"])
            X_3926 = isogonal_conjugate(model, A, B, C, X_2207, ID="X_3926", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_39 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) + c**(2))', ID="X_39", classes=["center", "incident"])
            central_line(model, X_2, X_39, 2, 39, incident=True)
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
            X_69 = eval_trilinear_point(model, A, B, C, '(cos(A))/a**(2)', ID="X_69", classes=["center", "incident"])
            central_line(model, X_3, X_69, 3, 69, incident=True)
            X_20 = eval_trilinear_point(model, A, B, C, 'cos(A) - cos(B)*cos(C)', ID="X_20", classes=["center", "incident"])
            X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
            central_line(model, X_20, X_99, 20, 99, incident=True)
            return promote_point_to_top(model, X_3926)


        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_3926 on the given reference triangle."""
            model = create_model('X_3926 = X_3053com[INVERSE(n(TANGENTIAL TRIANGLE))]')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03926(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-03926.json"))
            write_center_svg(
                model_acute,
                here / "x-03926.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )