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X₁₄₉₁¶

CROSSDIFFERENCE OF X₁ AND X₃₂

X₁₄₉₁ = reflection of X₆₅₉ in X₆₅₀

X₁₄₉₁ (CROSSDIFFERENCE OF X₁ AND X₃₂) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_1491 = CROSSDIFFERENCE OF X_1 AND X_32."""

        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,
            reflection_in_point,
            spieker_center_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01491(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1491 = CROSSDIFFERENCE OF X_1 AND X_32 on reference triangle ABC."""
            X_659 = eval_trilinear_point(model, A, B, C, '(a**(2) - b*c)*(b - c)', ID="X_659", classes=["center"])
            X_650 = eval_trilinear_point(model, A, B, C, 'cos(B) - cos(C)', ID="X_650", classes=["center"])
            X_1491 = reflection_in_point(model, X_659, X_650, ID="X_1491", classes=["selected", "target"], guide=False)
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
            X_514 = eval_trilinear_point(model, A, B, C, '(b - c)/a', ID="X_514", classes=["center", "incident"])
            central_line(model, X_10, X_514, 10, 514, incident=True)
            X_44 = eval_trilinear_point(model, A, B, C, 'b + c - 2*a', ID="X_44", classes=["center", "incident"])
            X_513 = eval_trilinear_point(model, A, B, C, 'b - c', ID="X_513", classes=["center", "incident"])
            central_line(model, X_44, X_513, 44, 513, incident=True)
            X_325 = eval_trilinear_point(model, A, B, C, '(csc(A))**(2)', ID="X_325", classes=["center", "incident"])
            X_523 = eval_trilinear_point(model, A, B, C, 'sin(B -C)', ID="X_523", classes=["center", "incident"])
            central_line(model, X_325, X_523, 325, 523, incident=True)
            return promote_point_to_top(model, X_1491)


        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_1491 on the given reference triangle."""
            model = create_model('X_1491 = CROSSDIFFERENCE OF X_1 AND X_32')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01491(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-01491.json"))
            write_center_svg(
                model_acute,
                here / "x-01491.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X1491¶

X₁₄₉₁¶