X3851

X3523com(EULER TRIANGLE)

< 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, 3528 }: Euler Line { 2, 3 }: Euler Line { 355, 3244 }: Central Line L(355, 3244) { 946, 3626 }: Central Line L(946, 3626) { 1352, 3629 }: Central Line L(1352, 3629) { 1479, 3614 }: Central Line L(1479, 3614) 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_3528 = EULER LINE INTERCEPT OF LINE X(35)X(1056) (0.4840, 0.0601) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_355 = FUHRMANN CENTER (0.5408, 0.2645) X_3244 = REFLECTION OF X(10) IN X(1) (0.6224, 0.2833) X_946 = MIDPOINT OF X(1) AND X(4) (0.5918, 0.3145) X_3626 = H-1(X(1); M, -2) (0.4949, 0.1583) X_1352 = REFLECTION OF X(6) IN X(5) (0.5122, 0.2306) X_3629 = H-1(X(6); M, 1/2) (0.6939, 0.3681) X_1479 = {X(1),X(4)}-HARMONIC CONJUGATE OF X(1478) (0.5371, 0.0965) X_3614 = 1st HUTSON-FEUERBACH POINT (0.5602, 0.2447) X_3851 = com(EULER TRIANGLE) (0.5641, 0.2699) A B C Ma Mb Mc X2 X3528 X3 X355 X3244 X946 X3626 X1352 X3629 X1479 X3614 X3851 (a, b, c) = (5, 6, 7) | AB = 1

X3851 (X3523com(EULER TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3851 = X_3523com(EULER 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,
            complement,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03851(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3851 = X_3523com(EULER TRIANGLE) on reference triangle ABC."""
            X_3528 = eval_trilinear_point(model, A, B, C, '(5*cos(A) - sin(B)*sin(C))', ID="X_3528", classes=["center"])
            X_3851 = complement(model, A, B, C, X_3528, ID="X_3851", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            central_line(model, X_2, X_3, 2, 3)
            X_355 = eval_trilinear_point(model, A, B, C, 'a*cos(A) - (b + c)*cos(B - C)', ID="X_355", classes=["center", "incident"])
            X_3244 = eval_trilinear_point(model, A, B, C, 'b*c*(4*a - b - c)', ID="X_3244", classes=["center", "incident"])
            central_line(model, X_355, X_3244, 355, 3244, incident=True)
            X_946 = eval_trilinear_point(model, A, B, C, 'b*c*(a**(3)*(b + c) + (b - c)**(2)*(a**(2) - a*b - a*c - b**(2) - c**(2) - 2*b*c))', ID="X_946", classes=["center", "incident"])
            X_3626 = eval_trilinear_point(model, A, B, C, 'b*c*(2*a - 3*b - 3*c)', ID="X_3626", classes=["center", "incident"])
            central_line(model, X_946, X_3626, 946, 3626, incident=True)
            return promote_point_to_top(model, X_3851)


        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_3851 on the given reference triangle."""
            model = create_model('X_3851 = X_3523com(EULER TRIANGLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03851(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-03851.json"))
            write_center_svg(
                model_acute,
                here / "x-03851.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )