X3350

INTERSECTION OF LINES X3X_2131 AND X4X_1073

< 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) { 4, 1073 }: Central Line L(4, 1073) { 3, 2131 }: Central Line L(3, 2131) { 6, 3344 }: Central Line L(6, 3344) { 2, 3349 }: Central Line L(2, 3349) { 57, 3342 }: Central Line L(57, 3342) { 1, 3352 }: Central Line L(1, 3352) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2 = CENTROID (0.5374, 0.2000) X_3344 = ISOGONAL CONJUGATE OF X(3343) (0.5027, 0.1321) X_4 = ORTHOCENTER (0.6122, 0.3958) X_1073 = -CROSS CONJUGATE OF X(3) (0.4792, -0.4343) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_2131 = ISOGONAL CONJUGATE OF X(2130) (0.5325, 0.1568) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_3349 = INTERSECTION OF LINES X(3)X(2130) AND X(4)X(2131) (0.5517, 0.2144) X_57 = ISOGONAL CONJUGATE OF X(9) (0.6138, 0.3110) X_3342 = ISOGONAL CONJUGATE OF X(3341) (0.4998, 0.0379) X_1 = INCENTER (0.5714, 0.2333) X_3352 = ISOGONAL CONJUGATE OF X(3351) (0.5206, 0.1791) X_3350 = INTERSECTION OF LINES X(3)X(2131) AND X(4)X(1073) (0.5892, 0.2523) A B C X2 X3344 X4 X1073 X3 X2131 X6 X3349 X57 X3342 X1 X3352 X3350 (a, b, c) = (5, 6, 7) | AB = 1

X3350 (INTERSECTION OF LINES X3X_2131 AND X4X_1073) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3350 = INTERSECTION OF LINES X_3X_2131 AND X_4X_1073."""

        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,
            isogonal_conjugate,
            orthocenter_of,
            point_from_barycentrics,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03350(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3350 = INTERSECTION OF LINES X_3X_2131 AND X_4X_1073 on reference triangle ABC."""
            X_3349 = point_from_barycentrics(model, A, B, C, 0.30966513, 0.33289879, 0.35743608, ID="X_3349", classes=["center"])
            X_3350 = isogonal_conjugate(model, A, B, C, X_3349, ID="X_3350", classes=["selected", "target"])
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_1073 = eval_trilinear_point(model, A, B, C, '((cot(A))/(cos(A) - cos(B)*cos(C)))', ID="X_1073", classes=["center", "incident"])
            central_line(model, X_4, X_1073, 4, 1073, incident=True)
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
            X_2131 = point_from_barycentrics(model, A, B, C, 0.36616655, 0.37250097, 0.26133249, ID="X_2131", classes=["center", "incident"])
            central_line(model, X_3, X_2131, 3, 2131, incident=True)
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            X_3344 = point_from_barycentrics(model, A, B, C, 0.41191386, 0.36788863, 0.22019751, ID="X_3344", classes=["center", "incident"])
            central_line(model, X_6, X_3344, 6, 3344, incident=True)
            return promote_point_to_top(model, X_3350)


        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_3350 on the given reference triangle."""
            model = create_model('X_3350 = INTERSECTION OF LINES X_3X_2131 AND X_4X_1073')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03350(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-03350.json"))
            write_center_svg(
                model_acute,
                here / "x-03350.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )