X1390

ISOGONAL CONJUGATE OF X1386

< 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) { 38, 57 }: Central Line L(38, 57) { 37, 105 }: Central Line L(37, 105) { 81, 518 }: Central Line L(81, 518) { 279, 388 }: Central Line L(279, 388) { 278, 427 }: Central Line L(278, 427) { 984, 985 }: Central Line L(984, 985) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1 = INCENTER (0.5714, 0.2333) X_984 = MIDPOINT OF X(8) AND X(192) (0.5421, 0.1984) X_38 = CROSSPOINT OF X(1) AND X(75) (0.5443, 0.1976) X_57 = ISOGONAL CONJUGATE OF X(9) (0.6138, 0.3110) X_37 = CROSSPOINT OF INCENTER AND CENTROID (0.5567, 0.2158) X_105 = Λ(INCENTER, SYMMEDIAN POINT) (0.9714, -0.0933) X_81 = CEVAPOINT OF INCENTER AND SYMMEDIAN POINT (0.5849, 0.2510) X_518 = ISOGONAL CONJUGATE OF X(105) (0.9154, 0.6489) X_279 = ISOGONAL CONJUGATE OF X(220) (0.6236, 0.3540) X_388 = ∩X(7)X(8) (0.5790, 0.2635) X_278 = ISOGONAL CONJUGATE OF X(219) (0.6278, 0.4577) X_427 = COMPLEMENT OF X(22) (0.5990, 0.3610) X_985 = ISOGONAL CONJUGATE OF X(984) (0.5961, 0.2693) X_1390 = ISOGONAL CONJUGATE OF X(1386) (0.5559, 0.2165) A B C X1 X984 X38 X57 X37 X105 X81 X518 X279 X388 X278 X427 X985 X1390 (a, b, c) = (5, 6, 7) | AB = 1

X1390 (ISOGONAL CONJUGATE OF X1386) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1390 = ISOGONAL CONJUGATE OF X_1386."""

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


        def construct_x_01390(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1390 = ISOGONAL CONJUGATE OF X_1386 on reference triangle ABC."""
            X_1386 = eval_trilinear_point(model, A, B, C, '(a*(a + b + c) + (a**(2) + b**(2) + c**(2)))', ID="X_1386", classes=["center"])
            X_1390 = isogonal_conjugate(model, A, B, C, X_1386, ID="X_1390", classes=["selected", "target"])
            X_38 = eval_trilinear_point(model, A, B, C, 'b**(2) + c**(2)', ID="X_38", classes=["center", "incident"])
            X_57 = eval_trilinear_point(model, A, B, C, '1/(b + c - a)', ID="X_57", classes=["center", "incident"])
            central_line(model, X_38, X_57, 38, 57, incident=True)
            X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
            X_105 = eval_trilinear_point(model, A, B, C, '1/(b**(2) + c**(2) - a*(b + c))', ID="X_105", classes=["center", "incident"])
            central_line(model, X_37, X_105, 37, 105, incident=True)
            X_81 = eval_trilinear_point(model, A, B, C, '1/(b + c)', ID="X_81", classes=["center", "incident"])
            X_518 = eval_trilinear_point(model, A, B, C, '(a*b + a*c - b**(2) - c**(2))', ID="X_518", classes=["center", "incident"])
            central_line(model, X_81, X_518, 81, 518, incident=True)
            return promote_point_to_top(model, X_1390)


        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_1390 on the given reference triangle."""
            model = create_model('X_1390 = ISOGONAL CONJUGATE OF X_1386')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01390(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-01390.json"))
            write_center_svg(
                model_acute,
                here / "x-01390.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )