X1617

TCC-PERSPECTOR OF X57

X1617 is the tcc-perspector of X57.
< 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, 3 }: OI Line (Incenter–Circumcenter Line) { 25, 105 }: Central Line L(25, 105) { 31, 222 }: Central Line L(31, 222) { 22, 347 }: Central Line L(22, 347) { 388, 405 }: Central Line L(388, 405) { 221, 595 }: Central Line L(221, 595) 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_3 = CIRCUMCENTER (0.5000, 0.1021) X_25 = HOMOTHETIC CENTER OF ORTHIC AND TANGENTIAL TRIANGLES (0.6329, 0.4497) X_105 = Λ(INCENTER, SYMMEDIAN POINT) (0.9714, -0.0933) X_31 = 2nd POWER POINT (0.6228, 0.3008) X_222 = -CEVA CONJUGATE OF X(56) (0.5653, 0.1568) X_22 = EXETER POINT (0.4143, -0.1221) X_347 = ISOTOMIC CONJUGATE OF X(280) (0.4531, -0.0404) X_388 = ∩X(7)X(8) (0.5790, 0.2635) X_405 = EULER LINE INTERCEPT OF LINE X(1)X(6) (0.5325, 0.1870) X_221 = -CEVA CONJUGATE OF X(56) (0.5474, -0.0688) X_595 = 2nd HATZIPOLAKIS-YIU POINT (0.6456, 0.3307) X_1617 = TCC-PERSPECTOR OF X(57) (0.6629, 0.4014) A B C X1 X3 X25 X105 X31 X222 X22 X347 X388 X405 X221 X595 X1617 (a, b, c) = (5, 6, 7) | AB = 1

X1617 (TCC-PERSPECTOR OF X57) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1617 = TCC-PERSPECTOR OF X_57."""

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


        def construct_x_01617(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1617 = TCC-PERSPECTOR OF X_57 on reference triangle ABC."""
            X_59 = eval_trilinear_point(model, A, B, C, '1/(1 - cos(B - C))', ID="X_59", classes=["center"])
            X_934 = eval_trilinear_point(model, A, B, C, '1/((b - c)*(b + c - a)**(2))', ID="X_934", classes=["center"])
            X_1617 = crosspoint(model, A, B, C, X_59, X_934, ID="X_1617", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
            central_line(model, X_1, X_3, 1, 3, incident=True)
            X_25 = eval_trilinear_point(model, A, B, C, 'sin(A)*tan(A)', ID="X_25", 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_25, X_105, 25, 105, incident=True)
            X_31 = eval_trilinear_point(model, A, B, C, 'a**(2)', ID="X_31", classes=["center", "incident"])
            X_222 = eval_trilinear_point(model, A, B, C, 'cos(A)*tan(A/2)', ID="X_222", classes=["center", "incident"])
            central_line(model, X_31, X_222, 31, 222, incident=True)
            return promote_point_to_top(model, X_1617)


        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_1617 on the given reference triangle."""
            model = create_model('X_1617 = TCC-PERSPECTOR OF X_57')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01617(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-01617.json"))
            write_center_svg(
                model_acute,
                here / "x-01617.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )