X2937

TANGENTIAL-ISOGONAL CONJUGATE OF X195

X2937 is the tangential-isogonal conjugate of X195.
< 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) { 2, 3 }: Euler Line { 184, 195 }: Central Line L(184, 195) { 49, 511 }: Central Line L(49, 511) { 1216, 1495 }: Central Line L(1216, 1495) { 1154, 1614 }: Central Line L(1154, 1614) { 15, 2927 }: Central Line L(15, 2927) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_250 = ISOGONAL CONJUGATE OF X(125) (0.5892, 0.5347) X_930 = ANTICOMPLEMENT OF X(137) (0.0497, 0.3422) X_2 = CENTROID (0.5374, 0.2000) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_184 = INVERSE OF X(125) IN THE BROCARD CIRCLE (0.5788, 0.1496) X_195 = -CEVA CONJUGATE OF X(3) (0.6761, 0.3331) X_49 = CENTER OF SINE-TRIPLE-ANGLE CIRCLE (0.6275, 0.1789) X_511 = ISOGONAL CONJUGATE OF X(98) (0.2335, -0.3020) X_1216 = ISOGONAL CONJUGATE OF X(1179) (0.4484, 0.0709) X_1495 = CROSSSUM OF X(2) AND X(30) (0.8194, 1.4855) X_1154 = ISOGONAL CONJUGATE OF X(1141) (0.8932, 0.6667) X_1614 = TCC-PERSPECTOR OF X(54) (0.5582, -0.0024) X_15 = 1st ISODYNAMIC POINT (0.5519, 0.1878) X_2927 = TANGENTIAL-ISOGONAL CONJUGATE OF X(17) (0.4411, -0.0729) X_2937 = TANGENTIAL-ISOGONAL CONJUGATE OF X(195) (0.3615, -0.2604) A B C X250 X930 X2 X3 X184 X195 X49 X511 X1216 X1495 X1154 X1614 X15 X2927 X2937 (a, b, c) = (5, 6, 7) | AB = 1

X2937 (TANGENTIAL-ISOGONAL CONJUGATE OF X195) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2937 = TANGENTIAL-ISOGONAL CONJUGATE OF X_195."""

        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,
            centroid_of,
            circumcenter_of,
            construct_baseline_triangle,
            create_model,
            crosspoint,
            eval_barycentric_point,
            eval_trilinear_point,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02937(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2937 = TANGENTIAL-ISOGONAL CONJUGATE OF X_195 on reference triangle ABC."""
            X_250 = eval_trilinear_point(model, A, B, C, '(sec(A))*(csc(B - C))**(2)', ID="X_250", classes=["center"])
            X_930 = eval_barycentric_point(model, A, B, C, '1/((b**(2) - c**(2))*(a**(4) + b**(4) + c**(4) - 2*a**(2)*b**(2) - 2*a**(2)*c**(2) - b**(2)*c**(2)))', ID="X_930", classes=["center"])
            X_2937 = crosspoint(model, A, B, C, X_250, X_930, ID="X_2937", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center"])
            central_line(model, X_2, X_3, 2, 3)
            X_184 = eval_trilinear_point(model, A, B, C, 'a**(2)*cos(A)', ID="X_184", classes=["center", "incident"])
            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"])
            central_line(model, X_184, X_195, 184, 195, incident=True)
            X_49 = eval_trilinear_point(model, A, B, C, 'cos(3*A)', ID="X_49", classes=["center", "incident"])
            X_511 = eval_trilinear_point(model, A, B, C, 'cos(A +  omega  )', ID="X_511", classes=["center", "incident"])
            central_line(model, X_49, X_511, 49, 511, incident=True)
            return promote_point_to_top(model, X_2937)


        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_2937 on the given reference triangle."""
            model = create_model('X_2937 = TANGENTIAL-ISOGONAL CONJUGATE OF X_195')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02937(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-02937.json"))
            write_center_svg(
                model_acute,
                here / "x-02937.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )