X3494

INTERSECTION OF LINES X1X_87 AND X3X_2053

< A B C >: Reference Triangle △ABC [ A B ]: Sideline AB (Base c = 1) [ B C ]: Sideline BC (Side a) [ C A ]: Sideline CA (Side b) { 1, 87 }: Central Line L(1, 87) { 3, 2053 }: Central Line L(3, 2053) { 32, 2319 }: Central Line L(32, 2319) { 384, 3502 }: Central Line L(384, 3502) { 3491, 3501 }: Central Line L(3491, 3501) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_3502 = ISOGONAL CONJUGATE OF X(3494) (0.6508, 0.3268) X_1 = INCENTER (0.5714, 0.2333) X_87 = -CROSS CONJUGATE OF X(1) (0.4794, 0.1691) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_2053 = -ISOCONJUGATE OF X(1423) (0.4486, 0.1337) X_32 = 3rd POWER POINT (0.6400, 0.3332) X_2319 = -ISOCONJUGATE OF X(1403) (0.4044, 0.1080) X_384 = THE CONWAY POINT: EULER LINE INTERCEPT OF LINE X(32)X(76) (0.5532, 0.2412) X_3491 = INTERSECTION OF LINES X(1)X(295) AND X(4)X(69) (0.5262, 0.2536) X_3501 = INTERSECTION OF LINES X(1)X(39) AND X(4)X(9) (0.5467, 0.2440) X_3494 = INTERSECTION OF LINES X(1)X(87) AND X(3)X(2053) (0.4381, 0.1402) A B C X3502 X1 X87 X3 X2053 X32 X2319 X384 X3491 X3501 X3494 (a, b, c) = (5, 6, 7) | AB = 1

X3494 (INTERSECTION OF LINES X1X_87 AND X3X_2053) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3494 = INTERSECTION OF LINES X_1X_87 AND X_3X_2053."""

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


        def construct_x_03494(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3494 = INTERSECTION OF LINES X_1X_87 AND X_3X_2053 on reference triangle ABC."""
            X_3494 = eval_trilinear_point(model, A, B, C, '((a**(2) + b**(2) + c**(2) - a*b - a*c + b*c)/(a*b + a*c - b*c))', ID="X_3494", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_87 = eval_trilinear_point(model, A, B, C, '1/(a*b + a*c - b*c)', ID="X_87", classes=["center", "incident"])
            central_line(model, X_1, X_87, 1, 87, incident=True)
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
            X_2053 = eval_trilinear_point(model, A, B, C, '(a*(b + c - a)/(a*b + a*c - b*c))', ID="X_2053", classes=["center", "incident"])
            central_line(model, X_3, X_2053, 3, 2053, incident=True)
            X_32 = eval_trilinear_point(model, A, B, C, 'a**(3)', ID="X_32", classes=["center", "incident"])
            X_2319 = eval_trilinear_point(model, A, B, C, '((b + c - a)/(a*b + a*c - b*c))', ID="X_2319", classes=["center", "incident"])
            central_line(model, X_32, X_2319, 32, 2319, incident=True)
            return promote_point_to_top(model, X_3494)


        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_3494 on the given reference triangle."""
            model = create_model('X_3494 = INTERSECTION OF LINES X_1X_87 AND X_3X_2053')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03494(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-03494.json"))
            write_center_svg(
                model_acute,
                here / "x-03494.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )