X2916

TANGENTIAL-ISOGONAL CONJUGATE OF X2

X2916 is the tangential-isogonal conjugate of X2.
< 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) { 6, 1176 }: Central Line L(6, 1176) { 6, 22 }: Central Line L(6, 22) { 195, 511 }: Central Line L(195, 511) { 159, 599 }: Central Line L(159, 599) { 155, 1350 }: Central Line L(155, 1350) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_1176 = 1st SARAGOSSA POINT OF X(66) (0.5328, 0.1263) X_22 = EXETER POINT (0.4143, -0.1221) X_195 = -CEVA CONJUGATE OF X(3) (0.6761, 0.3331) X_511 = ISOGONAL CONJUGATE OF X(98) (0.2335, -0.3020) X_159 = -OF-TANGENTIAL-TRIANGLE (0.4211, -0.7266) X_599 = ISOTOMIC CONJUGATE OF X(598) (0.4748, 0.1327) X_155 = EIGENCENTER OF ORTHIC TRIANGLE (1.1658, 0.5033) X_1350 = REFLECTION OF X(6) IN X(3) (0.4000, -0.0631) X_2916 = TANGENTIAL-ISOGONAL CONJUGATE OF X(2) (0.4656, -0.0146) A B C X6 X1176 X22 X195 X511 X159 X599 X155 X1350 X2916 (a, b, c) = (5, 6, 7) | AB = 1

X2916 (TANGENTIAL-ISOGONAL CONJUGATE OF X2) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2916 = TANGENTIAL-ISOGONAL CONJUGATE OF X_2."""

        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,
            promote_point_to_top,
            reflection_in_point,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02916(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2916 = TANGENTIAL-ISOGONAL CONJUGATE OF X_2 on reference triangle ABC."""
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center"])
            X_1176 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) + c**(2) - a**(2))/(b**(2) + c**(2))', ID="X_1176", classes=["center"])
            X_2916 = reflection_in_point(model, X_6, X_1176, ID="X_2916", classes=["selected", "target"], guide=False)
            X_22 = eval_trilinear_point(model, A, B, C, 'a*(b**(4) + c**(4) - a**(4))', ID="X_22", classes=["center", "incident"])
            central_line(model, X_6, X_22, 6, 22, 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_511 = eval_trilinear_point(model, A, B, C, 'cos(A +  omega  )', ID="X_511", classes=["center", "incident"])
            central_line(model, X_195, X_511, 195, 511, incident=True)
            X_159 = eval_trilinear_point(model, A, B, C, '(a*((a**(2) + b**(2) + c**(2))*sin(2*A) + (c**(2) - b**(2) - a**(2))*sin(2*B) + (b**(2) - c**(2) - a**(2))*sin(2*C)))', ID="X_159", classes=["center", "incident"])
            X_599 = eval_trilinear_point(model, A, B, C, 'b*c*(a**(2) - 2*b**(2) - 2*c**(2))', ID="X_599", classes=["center", "incident"])
            central_line(model, X_159, X_599, 159, 599, incident=True)
            return promote_point_to_top(model, X_2916)


        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_2916 on the given reference triangle."""
            model = create_model('X_2916 = TANGENTIAL-ISOGONAL CONJUGATE OF X_2')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02916(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-02916.json"))
            write_center_svg(
                model_acute,
                here / "x-02916.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )