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X₃₂₁₅¶

X₅₇-CEVA CONJUGATE OF X₄₈

X₃₂₁₅ (X₅₇-CEVA CONJUGATE OF X₄₈) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_3215 = X_57-CEVA CONJUGATE OF X_48."""

        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,
            ceva_conjugate,
            circumcenter_of,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03215(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3215 = X_57-CEVA CONJUGATE OF X_48 on reference triangle ABC."""
            X_57 = eval_trilinear_point(model, A, B, C, '1/(b + c - a)', ID="X_57", classes=["center"])
            X_48 = eval_trilinear_point(model, A, B, C, 'tan(B) + tan(C)', ID="X_48", classes=["center"])
            X_3215 = ceva_conjugate(model, A, B, C, X_57, X_48, ID="X_3215", classes=["selected", "target"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
            X_73 = eval_trilinear_point(model, A, B, C, 'sec(B) + sec(C)', ID="X_73", classes=["center", "incident"])
            central_line(model, X_3, X_73, 3, 73, incident=True)
            X_34 = eval_trilinear_point(model, A, B, C, '1 - sec(A)', ID="X_34", classes=["center", "incident"])
            X_46 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C) - cos(A)', ID="X_46", classes=["center", "incident"])
            central_line(model, X_34, X_46, 34, 46, incident=True)
            X_31 = eval_trilinear_point(model, A, B, C, 'a**(2)', ID="X_31", classes=["center", "incident"])
            X_65 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C)', ID="X_65", classes=["center", "incident"])
            central_line(model, X_31, X_65, 31, 65, incident=True)
            return promote_point_to_top(model, X_3215)


        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_3215 on the given reference triangle."""
            model = create_model('X_3215 = X_57-CEVA CONJUGATE OF X_48')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03215(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-03215.json"))
            write_center_svg(
                model_acute,
                here / "x-03215.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X3215¶

X₃₂₁₅¶