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X₃₂₄₇¶

INTERSECTION OF LINES X₁X_6 AND X₂X_2321

X₃₂₄₇ = crosssum of X₆ and X₃₃₀₃

X₃₂₄₇ (INTERSECTION OF LINES X₁X_6 AND X₂X_2321) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_3247 = INTERSECTION OF LINES X_1X_6 AND X_2X_2321."""

        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,
            incenter_of,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03247(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3247 = INTERSECTION OF LINES X_1X_6 AND X_2X_2321 on reference triangle ABC."""
            X_3247 = eval_trilinear_point(model, A, B, C, '(a + 3*b + 3*c)', ID="X_3247", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            central_line(model, X_1, X_6, 1, 6, incident=True)
            X_226 = eval_trilinear_point(model, A, B, C, '(csc(A))*(cos(B) + cos(C))', ID="X_226", classes=["center", "incident"])
            X_347 = eval_trilinear_point(model, A, B, C, '((-1 - cos(A) + cos(B) + cos(C))*(sec(A/2))**(2))', ID="X_347", classes=["center", "incident"])
            central_line(model, X_226, X_347, 226, 347, incident=True)
            X_519 = eval_trilinear_point(model, A, B, C, '(2*a - b - c)/a', ID="X_519", classes=["center", "incident"])
            X_966 = eval_trilinear_point(model, A, B, C, 'b*c*(a**(2) - 2*a*(b + c) - (b + c)**(2))', ID="X_966", classes=["center", "incident"])
            central_line(model, X_519, X_966, 519, 966, incident=True)
            return promote_point_to_top(model, X_3247)


        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_3247 on the given reference triangle."""
            model = create_model('X_3247 = INTERSECTION OF LINES X_1X_6 AND X_2X_2321')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03247(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-03247.json"))
            write_center_svg(
                model_acute,
                here / "x-03247.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X3247¶

X₃₂₄₇¶