X2925

TANGENTIAL-ISOGONAL CONJUGATE OF X15

X2925 is the tangential-isogonal conjugate of X15.
< 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) { 3, 13 }: Central Line L(3, 13) { 22, 1605 }: Central Line L(22, 1605) { 99, 1606 }: Central Line L(99, 1606) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_15 = 1st ISODYNAMIC POINT (0.5519, 0.1878) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_13 = 1st ISOGONIC CENTER (FERMAT POINT, TORRICELLI POINT) (0.5879, 0.2819) X_22 = EXETER POINT (0.4143, -0.1221) X_1605 = TCC-PERSPECTOR OF X(13) (0.5477, 0.3253) X_99 = STEINER POINT (0.1109, 0.4322) X_1606 = TCC-PERSPECTOR OF X(14) (0.8673, -0.5199) X_2925 = TANGENTIAL-ISOGONAL CONJUGATE OF X(15) (0.4517, 0.0032) A B C X15 X3 X13 X22 X1605 X99 X1606 X2925 (a, b, c) = (5, 6, 7) | AB = 1

X2925 (TANGENTIAL-ISOGONAL CONJUGATE OF X15) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2925 = TANGENTIAL-ISOGONAL CONJUGATE OF X_15."""

        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,
            intersect_lines,
            point_from_barycentrics,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02925(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2925 = TANGENTIAL-ISOGONAL CONJUGATE OF X_15 on reference triangle ABC."""
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            X_13 = eval_trilinear_point(model, A, B, C, 'csc(A +  pi  /3)', ID="X_13", classes=["center"])
            X_22 = eval_trilinear_point(model, A, B, C, 'a*(b**(4) + c**(4) - a**(4))', ID="X_22", classes=["center"])
            X_1605 = point_from_barycentrics(model, A, B, C, 0.24200161, 0.21576869, 0.54222969, ID="X_1605", classes=["center"])
            central_line(model, X_3, X_13, 3, 13)
            central_line(model, X_22, X_1605, 22, 1605)
            X_2925 = intersect_lines(model, X_3, X_13, X_22, X_1605, ID="X_2925", classes=["selected", "target"])
            X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
            X_1606 = point_from_barycentrics(model, A, B, C, 0.46878519, 1.3979153, -0.86670046, ID="X_1606", classes=["center", "incident"])
            central_line(model, X_99, X_1606, 99, 1606, incident=True)
            return promote_point_to_top(model, X_2925)


        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_2925 on the given reference triangle."""
            model = create_model('X_2925 = TANGENTIAL-ISOGONAL CONJUGATE OF X_15')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02925(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-02925.json"))
            write_center_svg(
                model_acute,
                here / "x-02925.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )