X3774

X39com[INVERSE(nT(bc, b²))]

< 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) { 10, 37 }: Central Line L(10, 37) { 39, 518 }: Central Line L(39, 518) { 213, 872 }: Central Line L(213, 872) { 100, 1908 }: Central Line L(100, 1908) { 192, 1921 }: Central Line L(192, 1921) { 42, 3121 }: Central Line L(42, 3121) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_37 = CROSSPOINT OF INCENTER AND CENTROID (0.5567, 0.2158) X_39 = BROCARD MIDPOINT (0.5778, 0.2305) X_518 = ISOGONAL CONJUGATE OF X(105) (0.9154, 0.6489) X_213 = -CEVA CONJUGATE OF X(42) (0.6135, 0.2833) X_872 = INTERSECTION OF LINES X(37)X(42) AND X(43)X(75) (0.6029, 0.2656) X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.1429, 0.4666) X_1908 = MIDPOINT OF PU(8) (0.5880, 0.2495) X_192 = -CEVA CONJUGATE OF X(2) (CONGRUENT PARALLELIANS POINT) (0.6147, 0.2635) X_1921 = CROSSDIFFERENCE OF PU(12) (-1.0027, -0.8795) X_42 = CROSSPOINT OF INCENTER AND SYMMEDIAN POINT (0.5880, 0.2495) X_3121 = DANNEELS PERSPECTOR FOR X(37) (0.8041, 0.1436) X_3774 = com[INVERSE(nT(bc, b2))] (0.5921, 0.2475) A B C X10 X37 X39 X518 X213 X872 X100 X1908 X192 X1921 X42 X3121 X3774 (a, b, c) = (5, 6, 7) | AB = 1

X3774 (X39com[INVERSE(nT(bc, b²))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3774 = X_39com[INVERSE(nT(bc, b²))]."""

        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,
            promote_point_to_top,
            spieker_center_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03774(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3774 = X_39com[INVERSE(nT(bc, b²))] on reference triangle ABC."""
            X_3774 = eval_barycentric_point(model, A, B, C, '(a**(3)*(b + c)*(b**(2) + c**(2) + b*c))', ID="X_3774", classes=["selected", "target"])
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
            X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
            central_line(model, X_10, X_37, 10, 37, incident=True)
            X_39 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) + c**(2))', ID="X_39", classes=["center", "incident"])
            X_518 = eval_trilinear_point(model, A, B, C, '(a*b + a*c - b**(2) - c**(2))', ID="X_518", classes=["center", "incident"])
            central_line(model, X_39, X_518, 39, 518, incident=True)
            X_213 = eval_trilinear_point(model, A, B, C, '(b + c)*a**(2)', ID="X_213", classes=["center", "incident"])
            X_872 = eval_trilinear_point(model, A, B, C, '(a*(b + c))**(2)', ID="X_872", classes=["center", "incident"])
            central_line(model, X_213, X_872, 213, 872, incident=True)
            return promote_point_to_top(model, X_3774)


        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_3774 on the given reference triangle."""
            model = create_model('X_3774 = X_39com[INVERSE(nT(bc, b²))]')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03774(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-03774.json"))
            write_center_svg(
                model_acute,
                here / "x-03774.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )