X1708

MIMOSA TRANSFORM OF X7

< 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 { 4, 46 }: Central Line L(4, 46) { 56, 72 }: Central Line L(56, 72) { 1, 201 }: Central Line L(1, 201) { 218, 222 }: Central Line L(218, 222) { 65, 405 }: Central Line L(65, 405) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_273 = ISOGONAL CONJUGATE OF X(212) (0.6191, 0.4329) X_1 = INCENTER (0.5714, 0.2333) X_2 = CENTROID (0.5374, 0.2000) X_7 = GERGONNE POINT (0.5903, 0.2769) X_4 = ORTHOCENTER (0.6122, 0.3958) X_46 = -CEVA CONJUGATE OF X(1) (0.6917, 0.4543) X_56 = EXSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.6316, 0.3438) X_72 = ISOGONAL CONJUGATE OF X(28) (0.4367, 0.0733) X_201 = -CEVA CONJUGATE OF X(12) (0.4897, 0.1062) X_218 = -CEVA CONJUGATE OF X(55) (0.6557, 0.3333) X_222 = -CEVA CONJUGATE OF X(56) (0.5653, 0.1568) X_65 = ORTHOCENTER OF THE INTOUCH TRIANGLE (0.6041, 0.2933) X_405 = EULER LINE INTERCEPT OF LINE X(1)X(6) (0.5325, 0.1870) X_1708 = MIMOSA TRANSFORM OF X(7) (0.7332, 0.4848) A B C X273 X1 X2 X7 X4 X46 X56 X72 X201 X218 X222 X65 X405 X1708 (a, b, c) = (5, 6, 7) | AB = 1

X1708 (MIMOSA TRANSFORM OF X7) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1708 = MIMOSA TRANSFORM OF X_7."""

        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,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            gergonne_point_of,
            incenter_of,
            orthocenter_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01708(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1708 = MIMOSA TRANSFORM OF X_7 on reference triangle ABC."""
            X_273 = eval_trilinear_point(model, A, B, C, 'sec(A)*(sec(A/2))**(2)', ID="X_273", classes=["center"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center"])
            X_1708 = ceva_conjugate(model, A, B, C, X_273, X_1, ID="X_1708", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center", "incident"])
            central_line(model, X_2, X_7, 2, 7, incident=True)
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_46 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C) - cos(A)', ID="X_46", classes=["center", "incident"])
            central_line(model, X_4, X_46, 4, 46, incident=True)
            X_56 = eval_trilinear_point(model, A, B, C, 'a/(b + c - a)', ID="X_56", classes=["center", "incident"])
            X_72 = eval_trilinear_point(model, A, B, C, '(b + c)*cot(A)', ID="X_72", classes=["center", "incident"])
            central_line(model, X_56, X_72, 56, 72, incident=True)
            return promote_point_to_top(model, X_1708)


        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_1708 on the given reference triangle."""
            model = create_model('X_1708 = MIMOSA TRANSFORM OF X_7')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01708(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-01708.json"))
            write_center_svg(
                model_acute,
                here / "x-01708.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )