X3461

ISOGONAL CONJUGATE OF X3460

< 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, 2120 }: Central Line L(1, 2120) { 5, 2595 }: Central Line L(5, 2595) { 195, 3468 }: Central Line L(195, 3468) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_54 = KOSNITA POINT (0.5880, 0.2176) X_1 = INCENTER (0.5714, 0.2333) X_2120 = EIGENTRANSFORM OF X(5) (0.5135, 0.2811) X_5 = NINE-POINT CENTER (0.5561, 0.2489) X_2595 = CROSSSUM OF PU(68) (0.5650, 0.2411) X_195 = -CEVA CONJUGATE OF X(3) (0.6761, 0.3331) X_3468 = -CEVA CONJUGATE OF X(3336) (0.5161, 0.0130) X_3461 = ISOGONAL CONJUGATE OF X(3460) (0.6102, 0.2013) A B C X54 X1 X2120 X5 X2595 X195 X3468 X3461 (a, b, c) = (5, 6, 7) | AB = 1

X3461 (ISOGONAL CONJUGATE OF X3460) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3461 = ISOGONAL CONJUGATE OF X_3460."""

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


        def construct_x_03461(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3461 = ISOGONAL CONJUGATE OF X_3460 on reference triangle ABC."""
            X_3460 = point_from_barycentrics(model, A, B, C, 0.29060152, 0.26847785, 0.44092064, ID="X_3460", classes=["center"])
            X_3461 = isogonal_conjugate(model, A, B, C, X_3460, ID="X_3461", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_2120 = point_from_barycentrics(model, A, B, C, 0.30475192, 0.22664215, 0.46860594, ID="X_2120", classes=["center", "incident"])
            central_line(model, X_1, X_2120, 1, 2120, incident=True)
            X_5 = nine_point_center_of(model, A, B, C, ID="X_5", classes=["center", "incident"])
            X_2595 = eval_trilinear_point(model, A, B, C, '(cos(A - B)*cos(A - C) + (cos(B - C))**(2))', ID="X_2595", classes=["center", "incident"])
            central_line(model, X_5, X_2595, 5, 2595, incident=True)
            X_195 = eval_trilinear_point(model, A, B, C, 'a*(a**(8) + b**(8) + c**(8) - 4*a**(6)*(b**(2) + c**(2)) + a**(4)*(6*b**(4) + 6*c**(4) + 5*b**(2)*c**(2)) - a**(2)*(4*b**(6) + 4*c**(6) - b**(4)*c**(2) - b**(2)*c**(4)) - 2*b**(2)*c**(2)*(b**(4) + c**(4) - b**(2)*c**(2)))', ID="X_195", classes=["center", "incident"])
            X_3468 = eval_trilinear_point(model, A, B, C, '2 - sec(A) + sec(B) + sec(C)', ID="X_3468", classes=["center", "incident"])
            central_line(model, X_195, X_3468, 195, 3468, incident=True)
            return promote_point_to_top(model, X_3461)


        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_3461 on the given reference triangle."""
            model = create_model('X_3461 = ISOGONAL CONJUGATE OF X_3460')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03461(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-03461.json"))
            write_center_svg(
                model_acute,
                here / "x-03461.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )