X1741

MIMOSA TRANSFORM OF X189

< 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, 7 }: Centroid–Gergonne Line { 46, 281 }: Central Line L(46, 281) { 19, 1158 }: Central Line L(19, 1158) { 920, 1249 }: Central Line L(920, 1249) { 1712, 1713 }: Central Line L(1712, 1713) 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_7 = GERGONNE POINT (0.5903, 0.2769) X_46 = -CEVA CONJUGATE OF X(1) (0.6917, 0.4543) X_281 = -CROSS CONJUGATE OF X(9) (0.5796, 0.3202) X_19 = CLAWSON POINT (0.6246, 0.4244) X_1158 = CIRCUMCENTER OF EXTOUCH TRIANGLE (0.5179, 0.3262) X_920 = -CEVA CONJUGATE OF X(1) (0.8006, 0.5344) X_1249 = ISOGONAL CONJUGATE OF X(1073) (-0.9482, -15.9845) X_1712 = MIMOSA TRANSFORM OF (20) (0.5990, 1.1358) X_1713 = MIMOSA TRANSFORM OF X(27) (0.8274, 0.5373) X_1741 = MIMOSA TRANSFORM OF X(189) (0.8066, 0.5917) A B C X2 X7 X46 X281 X19 X1158 X920 X1249 X1712 X1713 X1741 (a, b, c) = (5, 6, 7) | AB = 1

X1741 (MIMOSA TRANSFORM OF X189) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1741 = MIMOSA TRANSFORM OF X_189."""

        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,
            gergonne_point_of,
            intersect_lines,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01741(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1741 = MIMOSA TRANSFORM OF X_189 on reference triangle ABC."""
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center"])
            X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center"])
            X_46 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C) - cos(A)', ID="X_46", classes=["center"])
            X_281 = eval_trilinear_point(model, A, B, C, 'sec(A)*cot(A/2)', ID="X_281", classes=["center"])
            central_line(model, X_2, X_7, 2, 7)
            central_line(model, X_46, X_281, 46, 281)
            X_1741 = intersect_lines(model, X_2, X_7, X_46, X_281, ID="X_1741", classes=["selected", "target"])
            X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", classes=["center", "incident"])
            X_1158 = eval_trilinear_point(model, A, B, C, 'a**(6) - b**(6) - c**(6) + b**(2)*c**(2)*(b**(2) + c**(2)) + 3*a**(2)*(b**(4) + c**(4) - a**(2)*b**(2) - a**(2)*c**(2)) + 2*a*b*c*(a**(3) - b**(3) - c**(3) - a*b*c + (a**(2) + b*c)*(b + c) - a*b**(2) - a*c**(2))', ID="X_1158", classes=["center", "incident"])
            central_line(model, X_19, X_1158, 19, 1158, incident=True)
            return promote_point_to_top(model, X_1741)


        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_1741 on the given reference triangle."""
            model = create_model('X_1741 = MIMOSA TRANSFORM OF X_189')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01741(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-01741.json"))
            write_center_svg(
                model_acute,
                here / "x-01741.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )