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X₁₃₀₃¶

COLLINGS TRANSFORM OF X₃₈₉

X₁₃₀₃ (COLLINGS TRANSFORM OF X₃₈₉) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_1303 = COLLINGS TRANSFORM OF X_389."""

        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,
            centroid_of,
            cevapoint,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            orthocenter_of,
            point_from_barycentrics,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01303(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1303 = COLLINGS TRANSFORM OF X_389 on reference triangle ABC."""
            X_389 = eval_trilinear_point(model, A, B, C, 'cos(A) - cos(2*A)*cos(B - C)', ID="X_389", classes=["center"])
            X_512 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) - c**(2))', ID="X_512", classes=["center"])
            X_1303 = cevapoint(model, A, B, C, X_389, X_512, ID="X_1303", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_130 = eval_trilinear_point(model, A, B, C, '((sin(A))*(sin(2*B) + sin(2*C))*((sin(2*B) - sin(2*C))**(2))*((sin(2*A))**(2) + sin(2*B)*sin(2*C)))', ID="X_130", classes=["center", "incident"])
            central_line(model, X_2, X_130, 2, 130, incident=True)
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_129 = point_from_barycentrics(model, A, B, C, 0.22802261, -0.036048578, 0.80802596, ID="X_129", classes=["center", "incident"])
            central_line(model, X_4, X_129, 4, 129, incident=True)
            X_98 = eval_trilinear_point(model, A, B, C, 'sec(A +  omega  )', ID="X_98", classes=["center", "incident"])
            X_185 = eval_trilinear_point(model, A, B, C, '(cos(A))*(1 - cos(A)*cos(B - C))', ID="X_185", classes=["center", "incident"])
            central_line(model, X_98, X_185, 98, 185, incident=True)
            return promote_point_to_top(model, X_1303)


        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_1303 on the given reference triangle."""
            model = create_model('X_1303 = COLLINGS TRANSFORM OF X_389')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01303(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-01303.json"))
            write_center_svg(
                model_acute,
                here / "x-01303.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X1303¶

X₁₃₀₃¶