X3954

X2295com[INVERSE(n(INCENTRAL TRIANGLE))]

X3954 = complement of X17141
< 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) { 1, 6 }: Incenter–Symmedian Line { 38, 39 }: Central Line L(38, 39) { 76, 321 }: Central Line L(76, 321) { 274, 335 }: Central Line L(274, 335) { 10, 762 }: Central Line L(10, 762) { 100, 755 }: Central Line L(100, 755) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1 = INCENTER (0.5714, 0.2333) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_38 = CROSSPOINT OF X(1) AND X(75) (0.5443, 0.1976) X_39 = BROCARD MIDPOINT (0.5778, 0.2305) X_76 = 3rd BROCARD POINT (0.4567, 0.1388) X_321 = ISOTOMIC CONJUGATE OF X(81) (0.4800, 0.1527) X_274 = ISOGONAL CONJUGATE OF X(213) (0.5168, 0.1843) X_335 = ISOTOMIC CONJUGATE OF X(239) (1.0387, 0.0318) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_762 = TRILINEAR CUBE OF X(37) (0.5240, 0.1822) X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.1429, 0.4666) X_755 = EVEN (0, 4) CIRCUMCIRCLE POINT (0.9524, -0.1340) X_3954 = com[INVERSE(n(INCENTRAL TRIANGLE))] (0.5276, 0.1812) A B C X1 X6 X38 X39 X76 X321 X274 X335 X10 X762 X100 X755 X3954 (a, b, c) = (5, 6, 7) | AB = 1

X3954 (X2295com[INVERSE(n(INCENTRAL TRIANGLE))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3954 = X_2295com[INVERSE(n(INCENTRAL 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,
            construct_baseline_triangle,
            create_model,
            eval_barycentric_point,
            eval_trilinear_point,
            incenter_of,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03954(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3954 = X_2295com[INVERSE(n(INCENTRAL TRIANGLE))] on reference triangle ABC."""
            X_3954 = eval_barycentric_point(model, A, B, C, '(a*(b + c)*(b**(2) + c**(2)))', ID="X_3954", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            central_line(model, X_1, X_6, 1, 6, incident=True)
            X_38 = eval_trilinear_point(model, A, B, C, 'b**(2) + c**(2)', ID="X_38", 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_38, X_39, 38, 39, incident=True)
            X_76 = eval_trilinear_point(model, A, B, C, '1/a**(3)', ID="X_76", classes=["center", "incident"])
            X_321 = eval_trilinear_point(model, A, B, C, '(b + c)*b**(2)*c**(2)', ID="X_321", classes=["center", "incident"])
            central_line(model, X_76, X_321, 76, 321, incident=True)
            return promote_point_to_top(model, X_3954)


        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_3954 on the given reference triangle."""
            model = create_model('X_3954 = X_2295com[INVERSE(n(INCENTRAL TRIANGLE))]')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03954(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-03954.json"))
            write_center_svg(
                model_acute,
                here / "x-03954.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )