X2625

CROSSSUM OF PU(73)

< 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) { 1101, 2618 }: Central Line L(1101, 2618) { 2616, 2626 }: Central Line L(2616, 2626) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2621 = TRILINEAR POLE OF PU(72) (0.5444, 0.2429) X_2626 = CROSSDIFFERENCE OF PU(73) (0.2607, 0.5635) X_1101 = TRILINEAR SQUARE OF X(110) (0.5344, 0.4306) X_2618 = DIFFERENCE OF PU(72) (-4.5086, 2.1795) X_2616 = POINT TANIA (5.9110, -1.8124) X_2625 = CROSSSUM OF PU(73) (0.7762, 0.3467) A B C X2621 X2626 X1101 X2618 X2616 X2625 (a, b, c) = (5, 6, 7) | AB = 1

X2625 (CROSSSUM OF PU(73)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2625 = CROSSSUM OF PU(73)."""

        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_02625(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2625 = CROSSSUM OF PU(73) on reference triangle ABC."""
            X_2625 = eval_trilinear_point(model, A, B, C, 'cot(A - B)*cot(A - C) - (cot(B - C))**(2)', ID="X_2625", classes=["selected", "target"])
            X_1101 = eval_trilinear_point(model, A, B, C, '((csc(B - C))**(2))', ID="X_1101", classes=["center", "incident"])
            X_2618 = eval_trilinear_point(model, A, B, C, 'tan(C - A) - tan(B - A)', ID="X_2618", classes=["center", "incident"])
            central_line(model, X_1101, X_2618, 1101, 2618, incident=True)
            X_2616 = eval_trilinear_point(model, A, B, C, 'tan(B - C)', ID="X_2616", classes=["center", "incident"])
            X_2626 = eval_trilinear_point(model, A, B, C, 'cot(A - B)*cot(A - C) + (cot(B - C))**(2)', ID="X_2626", classes=["center", "incident"])
            central_line(model, X_2616, X_2626, 2616, 2626, incident=True)
            return promote_point_to_top(model, X_2625)


        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_2625 on the given reference triangle."""
            model = create_model('X_2625 = CROSSSUM OF PU(73)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02625(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-02625.json"))
            write_center_svg(
                model_acute,
                here / "x-02625.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )