X3741

X321com[n(INCENTRAL)*n(MEDIAL)]

< A B C >: Reference Triangle △ABC < M_a M_b M_c >: Medial Triangle △M_a M_b M_c [ A B ]: Sideline AB (Base c = 1) [ B C ]: Sideline BC (Side a) [ C A ]: Sideline CA (Side b) { 2, 42 }: Nagel Line { 1, 2 }: Nagel Line { 116, 126 }: Central Line L(116, 126) { 38, 321 }: Central Line L(38, 321) { 256, 314 }: Central Line L(256, 314) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) M_a = Midpoint M_a of BC (0.8061, 0.2999) M_b = Midpoint M_b of CA (0.3061, 0.2999) M_c = Midpoint M_c of AB (0.5000, 0.0000) X_2 = CENTROID (0.5374, 0.2000) X_42 = CROSSPOINT OF INCENTER AND SYMMEDIAN POINT (0.5880, 0.2495) X_1 = INCENTER (0.5714, 0.2333) X_116 = MIDPOINT OF X(4) AND X(103) (0.6990, 0.0375) X_126 = -OF-MEDIAL-TRIANGLE (0.3119, 0.3228) X_38 = CROSSPOINT OF X(1) AND X(75) (0.5443, 0.1976) X_321 = ISOTOMIC CONJUGATE OF X(81) (0.4800, 0.1527) X_256 = 1st SHARYGIN POINT (0.5601, 0.2146) X_314 = ISOTOMIC CONJUGATE OF X(65) (0.4457, 0.1206) X_3741 = com[n(INCENTRAL)*n(MEDIAL)] (0.5121, 0.1752) A B C Ma Mb Mc X2 X42 X1 X116 X126 X38 X321 X256 X314 X3741 (a, b, c) = (5, 6, 7) | AB = 1

X3741 (X321com[n(INCENTRAL)*n(MEDIAL)]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3741 = X_321com[n(INCENTRAL)*n(MEDIAL)]."""

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


        def construct_x_03741(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3741 = X_321com[n(INCENTRAL)*n(MEDIAL)] on reference triangle ABC."""
            X_42 = eval_trilinear_point(model, A, B, C, 'a*(b + c)', ID="X_42", classes=["center"])
            X_3741 = complement(model, A, B, C, X_42, ID="X_3741", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            central_line(model, X_1, X_2, 1, 2, incident=True)
            X_116 = eval_trilinear_point(model, A, B, C, 'b*c*((b - c)**(2)*(b**(2) + b*c + c**(2) - a*b - a*c))', ID="X_116", classes=["center", "incident"])
            X_126 = eval_trilinear_point(model, A, B, C, '(b*c*(2*a**(2) - b**(2) - c**(2))*(b**(4) + c**(4) + a**(2)*(b**(2) + c**(2)) - 4*b**(2)*c**(2)))', ID="X_126", classes=["center", "incident"])
            central_line(model, X_116, X_126, 116, 126, incident=True)
            X_38 = eval_trilinear_point(model, A, B, C, 'b**(2) + c**(2)', ID="X_38", 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_38, X_321, 38, 321, incident=True)
            return promote_point_to_top(model, X_3741)


        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_3741 on the given reference triangle."""
            model = create_model('X_3741 = X_321com[n(INCENTRAL)*n(MEDIAL)]')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03741(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-03741.json"))
            write_center_svg(
                model_acute,
                here / "x-03741.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )