X1814

INVERSE MIMOSA TRANSFORM OF X672

X1814 = reflection of X651 in X6
< 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) { 651, 6 }: Central Line L(651, 6) { 6, 7 }: Central Line L(6, 7) { 48, 77 }: Central Line L(48, 77) { 81, 105 }: Central Line L(81, 105) { 63, 212 }: Central Line L(63, 212) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_651 = TRILINEAR POLE OF LINE X(1)X(3) (0.3048, 0.5599) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_7 = GERGONNE POINT (0.5903, 0.2769) X_48 = CROSSPOINT OF X(1) AND X(63) (0.5412, 0.1246) X_77 = ISOGONAL CONJUGATE OF X(33) (0.5270, 0.1305) X_81 = CEVAPOINT OF INCENTER AND SYMMEDIAN POINT (0.5849, 0.2510) X_105 = Λ(INCENTER, SYMMEDIAN POINT) (0.9714, -0.0933) X_63 = ISOGONAL CONJUGATE OF X(19) (0.4566, 0.0823) X_212 = -CEVA CONJUGATE OF X(41) (0.4719, 0.0786) X_1814 = INVERSE MIMOSA TRANSFORM OF X(672) (0.8952, -0.0254) A B C X651 X6 X7 X48 X77 X81 X105 X63 X212 X1814 (a, b, c) = (5, 6, 7) | AB = 1

X1814 (INVERSE MIMOSA TRANSFORM OF X672) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1814 = INVERSE MIMOSA TRANSFORM OF X_672."""

        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,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            gergonne_point_of,
            promote_point_to_top,
            reflection_in_point,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01814(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1814 = INVERSE MIMOSA TRANSFORM OF X_672 on reference triangle ABC."""
            X_651 = eval_trilinear_point(model, A, B, C, '1/(cos(B) - cos(C))', ID="X_651", classes=["center"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center"])
            X_1814 = reflection_in_point(model, X_651, X_6, ID="X_1814", classes=["selected", "target"], guide=False)
            X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center", "incident"])
            central_line(model, X_6, X_7, 6, 7, incident=True)
            X_48 = eval_trilinear_point(model, A, B, C, 'tan(B) + tan(C)', ID="X_48", classes=["center", "incident"])
            X_77 = eval_trilinear_point(model, A, B, C, '1/(1 + sec(A))', ID="X_77", classes=["center", "incident"])
            central_line(model, X_48, X_77, 48, 77, incident=True)
            X_81 = eval_trilinear_point(model, A, B, C, '1/(b + c)', ID="X_81", classes=["center", "incident"])
            X_105 = eval_trilinear_point(model, A, B, C, '1/(b**(2) + c**(2) - a*(b + c))', ID="X_105", classes=["center", "incident"])
            central_line(model, X_81, X_105, 81, 105, incident=True)
            return promote_point_to_top(model, X_1814)


        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_1814 on the given reference triangle."""
            model = create_model('X_1814 = INVERSE MIMOSA TRANSFORM OF X_672')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01814(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-01814.json"))
            write_center_svg(
                model_acute,
                here / "x-01814.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )