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X₁₈₃₁¶

ZOSMA TRANSFORM OF X₁₂

X₁₈₃₁ (ZOSMA TRANSFORM OF X₁₂) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_1831 = ZOSMA TRANSFORM OF X_12."""

        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,
            crosspoint,
            eval_trilinear_point,
            orthocenter_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01831(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1831 = ZOSMA TRANSFORM OF X_12 on reference triangle ABC."""
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center"])
            X_270 = eval_trilinear_point(model, A, B, C, '(sec(A))/(1 + cos(B - C))', ID="X_270", classes=["center"])
            X_1831 = crosspoint(model, A, B, C, X_4, X_270, ID="X_1831", classes=["selected", "target"])
            X_80 = eval_trilinear_point(model, A, B, C, '1/(1 - 2*cos(A))', ID="X_80", classes=["center", "incident"])
            central_line(model, X_4, X_80, 4, 80, incident=True)
            X_28 = eval_trilinear_point(model, A, B, C, '(tan(A))/(b + c)', ID="X_28", classes=["center", "incident"])
            X_501 = eval_trilinear_point(model, A, B, C, '(a*(a**(3) - b**(3) - c**(3) - b*c*(a + b + c) + a*b*(a - b) + a*c*(a - c))/(b + c))', ID="X_501", classes=["center", "incident"])
            central_line(model, X_28, X_501, 28, 501, incident=True)
            X_33 = eval_trilinear_point(model, A, B, C, '1 + sec(A)', ID="X_33", classes=["center", "incident"])
            X_1697 = eval_trilinear_point(model, A, B, C, '-1 + sin(A/2)*cos(B/2)*cos(C/2)', ID="X_1697", classes=["center", "incident"])
            central_line(model, X_33, X_1697, 33, 1697, incident=True)
            return promote_point_to_top(model, X_1831)


        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_1831 on the given reference triangle."""
            model = create_model('X_1831 = ZOSMA TRANSFORM OF X_12')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01831(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-01831.json"))
            write_center_svg(
                model_acute,
                here / "x-01831.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X1831¶

X₁₈₃₁¶