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X₃₃₅₇¶

MIDPOINT OF X₃ AND X₆₄

X₃₃₅₇ is the midpoint of X₃ and X₆₄.

X₃₃₅₇ (MIDPOINT OF X₃ AND X₆₄) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_3357 = MIDPOINT OF X_3 AND X_64."""

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


        def construct_x_03357(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3357 = MIDPOINT OF X_3 AND X_64 on reference triangle ABC."""
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            X_64 = eval_trilinear_point(model, A, B, C, '1/(cos(A) - cos(B)*cos(C))', ID="X_64", classes=["center"])
            X_3357 = midpoint(model, X_3, X_64, ID="X_3357", classes=["selected", "target"], guide=False)
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_74 = eval_trilinear_point(model, A, B, C, '1/(cos(A) - 2*cos(B)*cos(C))', ID="X_74", classes=["center", "incident"])
            central_line(model, X_4, X_74, 4, 74, incident=True)
            X_185 = eval_trilinear_point(model, A, B, C, '(cos(A))*(1 - cos(A)*cos(B - C))', ID="X_185", classes=["center", "incident"])
            X_378 = eval_trilinear_point(model, A, B, C, 'sec(A) + 2*cos(A)', ID="X_378", classes=["center", "incident"])
            central_line(model, X_185, X_378, 185, 378, incident=True)
            X_389 = eval_trilinear_point(model, A, B, C, 'cos(A) - cos(2*A)*cos(B - C)', ID="X_389", classes=["center", "incident"])
            X_1593 = eval_trilinear_point(model, A, B, C, 'cos(A) + sec(A)', ID="X_1593", classes=["center", "incident"])
            central_line(model, X_389, X_1593, 389, 1593, incident=True)
            return promote_point_to_top(model, X_3357)


        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_3357 on the given reference triangle."""
            model = create_model('X_3357 = MIDPOINT OF X_3 AND X_64')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03357(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-03357.json"))
            write_center_svg(
                model_acute,
                here / "x-03357.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X3357¶

X₃₃₅₇¶