X1813

INVERSE MIMOSA TRANSFORM OF X650

< 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) { 48, 77 }: Central Line L(48, 77) { 109, 110 }: Central Line L(109, 110) { 283, 296 }: Central Line L(283, 296) { 287, 307 }: Central Line L(287, 307) { 59, 677 }: Central Line L(59, 677) { 101, 651 }: Central Line L(101, 651) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) 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_109 = Ψ(INCENTER, CIRCUMCENTER) (0.3636, 0.5938) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_283 = -CROSS CONJUGATE OF X(21) (0.4475, 0.0704) X_296 = ISOGONAL CONJUGATE OF X(243) (0.7214, -0.0918) X_287 = -HIRST INVERSE OF X(98) (0.7437, -0.0511) X_307 = ISOTOMIC CONJUGATE OF X(29) (0.4659, 0.0959) X_59 = ISOGONAL CONJUGATE OF X(11) (0.5333, 0.4355) X_677 = TRILINEAR POLE OF LINE X(3)X(101) (1.3200, 0.4790) X_101 = Ψ(INCENTER, SYMMEDIAN POINT) (0.2143, 0.5249) X_651 = TRILINEAR POLE OF LINE X(1)X(3) (0.3048, 0.5599) X_1813 = INVERSE MIMOSA TRANSFORM OF X(650) (-0.1088, 0.3999) A B C X48 X77 X109 X110 X283 X296 X287 X307 X59 X677 X101 X651 X1813 (a, b, c) = (5, 6, 7) | AB = 1

X1813 (INVERSE MIMOSA TRANSFORM OF X650) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1813 = INVERSE MIMOSA TRANSFORM OF X_650."""

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


        def construct_x_01813(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1813 = INVERSE MIMOSA TRANSFORM OF X_650 on reference triangle ABC."""
            X_1813 = eval_trilinear_point(model, A, B, C, '(cos(A))/(cos(B) - cos(C))', ID="X_1813", classes=["selected", "target"])
            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_109 = eval_trilinear_point(model, A, B, C, 'a/(cos(B) - cos(C))', ID="X_109", classes=["center", "incident"])
            X_110 = eval_trilinear_point(model, A, B, C, 'csc(B - C)', ID="X_110", classes=["center", "incident"])
            central_line(model, X_109, X_110, 109, 110, incident=True)
            X_283 = eval_trilinear_point(model, A, B, C, '(cos(A))/(cos(B) + cos(C))', ID="X_283", classes=["center", "incident"])
            X_296 = eval_trilinear_point(model, A, B, C, '(cos(A))/((cos(A))**(2) - cos(B)*cos(C))', ID="X_296", classes=["center", "incident"])
            central_line(model, X_283, X_296, 283, 296, incident=True)
            return promote_point_to_top(model, X_1813)


        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_1813 on the given reference triangle."""
            model = create_model('X_1813 = INVERSE MIMOSA TRANSFORM OF X_650')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01813(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-01813.json"))
            write_center_svg(
                model_acute,
                here / "x-01813.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )