X3934

X2023com(1st BROCARD TRIANGLE)

X3934 = centroid of ABCX76
< 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) { 2, 39 }: Central Line L(2, 39) { 5, 141 }: Central Line L(5, 141) { 32, 183 }: Central Line L(32, 183) { 83, 385 }: Central Line L(83, 385) { 187, 384 }: Central Line L(187, 384) { 140, 620 }: Central Line L(140, 620) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2 = CENTROID (0.5374, 0.2000) X_39 = BROCARD MIDPOINT (0.5778, 0.2305) X_5 = NINE-POINT CENTER (0.5561, 0.2489) X_141 = COMPLEMENT OF SYMMEDIAN POINT (0.5061, 0.1663) X_32 = 3rd POWER POINT (0.6400, 0.3332) X_183 = TRILINEAR PRODUCT X(75)X(182) (0.4700, 0.1275) X_83 = CEVAPOINT OF CENTROID AND SYMMEDIAN POINT (0.5651, 0.2360) X_385 = -HIRST INVERSE OF X(6) (2.2863, 2.0795) X_187 = INVERSE-IN-CIRCUMCIRCLE OF X(6) (SCHOUTE CENTER) (1.1986, 1.2559) X_384 = THE CONWAY POINT: EULER LINE INTERCEPT OF LINE X(32)X(76) (0.5532, 0.2412) X_140 = MIDPOINT OF X(3) AND X(5) (0.5281, 0.1755) X_620 = MIDPOINT OF X(618) AND X(619) (0.4308, 0.2580) X_3934 = com(1st BROCARD TRIANGLE) (0.5172, 0.1847) A B C X2 X39 X5 X141 X32 X183 X83 X385 X187 X384 X140 X620 X3934 (a, b, c) = (5, 6, 7) | AB = 1

X3934 (X2023com(1st BROCARD TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3934 = X_2023com(1st BROCARD 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,
            complement,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            nine_point_center_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03934(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3934 = X_2023com(1st BROCARD TRIANGLE) on reference triangle ABC."""
            X_39 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) + c**(2))', ID="X_39", classes=["center"])
            X_3934 = complement(model, A, B, C, X_39, ID="X_3934", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            central_line(model, X_2, X_39, 2, 39, incident=True)
            X_5 = nine_point_center_of(model, A, B, C, ID="X_5", classes=["center", "incident"])
            X_141 = eval_trilinear_point(model, A, B, C, 'b*c*(b**(2) + c**(2))', ID="X_141", classes=["center", "incident"])
            central_line(model, X_5, X_141, 5, 141, incident=True)
            X_32 = eval_trilinear_point(model, A, B, C, 'a**(3)', ID="X_32", classes=["center", "incident"])
            X_183 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)*cos(A-  omega  )', ID="X_183", classes=["center", "incident"])
            central_line(model, X_32, X_183, 32, 183, incident=True)
            return promote_point_to_top(model, X_3934)


        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_3934 on the given reference triangle."""
            model = create_model('X_3934 = X_2023com(1st BROCARD TRIANGLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03934(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-03934.json"))
            write_center_svg(
                model_acute,
                here / "x-03934.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )