X3080

DANNEELS POINT OF X25

< 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, 3 }: Euler Line { 682, 1196 }: Central Line L(682, 1196) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_25 = HOMOTHETIC CENTER OF ORTHIC AND TANGENTIAL TRIANGLES (0.6329, 0.4497) X_1196 = 3rd SARAGOSSA POINT OF X(25) (0.6432, 0.2801) X_2 = CENTROID (0.5374, 0.2000) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_682 = POINT ARNEB (0.6397, 0.1604) X_3080 = DANNEELS POINT OF X(25) (0.6495, 0.4933) A B C X25 X1196 X2 X3 X682 X3080 (a, b, c) = (5, 6, 7) | AB = 1

X3080 (DANNEELS POINT OF X25) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3080 = DANNEELS POINT OF X_25."""

        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,
            ceva_conjugate,
            circumcenter_of,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03080(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3080 = DANNEELS POINT OF X_25 on reference triangle ABC."""
            X_25 = eval_trilinear_point(model, A, B, C, 'sin(A)*tan(A)', ID="X_25", classes=["center"])
            X_1196 = eval_trilinear_point(model, A, B, C, '(a*(b**(4) + c**(4) + a**(2)*b**(2) + a**(2)*c**(2) - 2*b**(2)*c**(2)))', ID="X_1196", classes=["center"])
            X_3080 = ceva_conjugate(model, A, B, C, X_25, X_1196, ID="X_3080", 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_682 = eval_trilinear_point(model, A, B, C, '(sec(B)*(csc(C))**(3) + sec(C)*(csc(B))**(3))', ID="X_682", classes=["center", "incident"])
            central_line(model, X_682, X_1196, 682, 1196, incident=True)
            return promote_point_to_top(model, X_3080)


        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_3080 on the given reference triangle."""
            model = create_model('X_3080 = DANNEELS POINT OF X_25')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03080(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-03080.json"))
            write_center_svg(
                model_acute,
                here / "x-03080.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )