X3624

H(X10; M, 1/2)

X3624 = homothetic center of ABC and cross-triangle of Aquila and anti-Aquila triangles
< 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, 2 }: Nagel Line { 40, 140 }: Central Line L(40, 140) { 57, 191 }: Central Line L(57, 191) { 36, 405 }: Central Line L(36, 405) { 34, 451 }: Central Line L(34, 451) { 35, 474 }: Central Line L(35, 474) 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_2 = CENTROID (0.5374, 0.2000) X_40 = BEVAN POINT (0.4286, -0.0292) X_140 = MIDPOINT OF X(3) AND X(5) (0.5281, 0.1755) X_57 = ISOGONAL CONJUGATE OF X(9) (0.6138, 0.3110) X_191 = -CEVA CONJUGATE OF X(1) (0.4859, 0.1209) X_36 = INVERSE-IN-CIRCUMCIRCLE OF INCENTER (1.3333, 1.6330) X_405 = EULER LINE INTERCEPT OF LINE X(1)X(6) (0.5325, 0.1870) X_34 = -BETH CONJUGATE OF X(4) (0.6332, 0.4792) X_451 = -HIRST INVERSE OF X(424) (0.5621, 0.2645) X_35 = {X(1),X(3)}-HARMONIC CONJUGATE OF X(36) (0.5373, 0.1706) X_474 = EULER LINE INTERCEPT OF LINE X(10)X(56) (0.5441, 0.2176) X_3624 = H(X(10); M, 1/2) (0.5423, 0.2047) A B C X1 X2 X40 X140 X57 X191 X36 X405 X34 X451 X35 X474 X3624 (a, b, c) = (5, 6, 7) | AB = 1

X3624 (H(X10; M, 1/2)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3624 = H(X_10; M, 1/2)."""

        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,
            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_03624(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3624 = H(X_10; M, 1/2) on reference triangle ABC."""
            X_3624 = eval_trilinear_point(model, A, B, C, 'b*c*(3*a +2*b + 2*c)', ID="X_3624", 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_40 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C) - cos(A) - 1', ID="X_40", classes=["center", "incident"])
            X_140 = eval_trilinear_point(model, A, B, C, '2*cos(A) + cos(B - C)', ID="X_140", classes=["center", "incident"])
            central_line(model, X_40, X_140, 40, 140, incident=True)
            X_57 = eval_trilinear_point(model, A, B, C, '1/(b + c - a)', ID="X_57", classes=["center", "incident"])
            X_191 = eval_trilinear_point(model, A, B, C, '(b + c - a)*(b*c + c*a + a*b) + b**(3) + c**(3) - a**(3)', ID="X_191", classes=["center", "incident"])
            central_line(model, X_57, X_191, 57, 191, incident=True)
            return promote_point_to_top(model, X_3624)


        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_3624 on the given reference triangle."""
            model = create_model('X_3624 = H(X_10; M, 1/2)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03624(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-03624.json"))
            write_center_svg(
                model_acute,
                here / "x-03624.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )