X1832

ZOSMA TRANSFORM OF X15

< 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) { 12, 37 }: Central Line L(12, 37) { 4, 1251 }: Central Line L(4, 1251) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_12 = {X(1),X(5)}-HARMONIC CONJUGATE OF X(11) (0.5641, 0.2407) X_37 = CROSSPOINT OF INCENTER AND CENTROID (0.5567, 0.2158) X_4 = ORTHOCENTER (0.6122, 0.3958) X_1251 = ISOGONAL CONJUGATE OF X(1082) (0.5908, 0.2784) X_1832 = ZOSMA TRANSFORM OF X(15) (0.6158, 0.4153) A B C X12 X37 X4 X1251 X1832 (a, b, c) = (5, 6, 7) | AB = 1

X1832 (ZOSMA TRANSFORM OF X15) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1832 = ZOSMA TRANSFORM OF X_15."""

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


        def construct_x_01832(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1832 = ZOSMA TRANSFORM OF X_15 on reference triangle ABC."""
            X_12 = eval_trilinear_point(model, A, B, C, '1 + cos(B - C)', ID="X_12", classes=["center"])
            X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center"])
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center"])
            X_1251 = eval_trilinear_point(model, A, B, C, '(sin(A)*csc(A/2)*sec(A/2 +  pi  /6))', ID="X_1251", classes=["center"])
            central_line(model, X_12, X_37, 12, 37)
            central_line(model, X_4, X_1251, 4, 1251)
            X_1832 = intersect_lines(model, X_12, X_37, X_4, X_1251, ID="X_1832", classes=["selected", "target"])
            return promote_point_to_top(model, X_1832)


        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_1832 on the given reference triangle."""
            model = create_model('X_1832 = ZOSMA TRANSFORM OF X_15')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01832(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-01832.json"))
            write_center_svg(
                model_acute,
                here / "x-01832.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )