X2175

X2-ISOCONJUGATE OF X85

< 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) { 25, 181 }: Central Line L(25, 181) { 31, 184 }: Central Line L(31, 184) { 55, 219 }: Central Line L(55, 219) { 182, 238 }: Central Line L(182, 238) { 32, 560 }: Central Line L(32, 560) { 6, 692 }: Central Line L(6, 692) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_25 = HOMOTHETIC CENTER OF ORTHIC AND TANGENTIAL TRIANGLES (0.6329, 0.4497) X_181 = APOLLONIUS POINT (0.6163, 0.3093) X_31 = 2nd POWER POINT (0.6228, 0.3008) X_184 = INVERSE OF X(125) IN THE BROCARD CIRCLE (0.5788, 0.1496) X_55 = INSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.5490, 0.1921) X_219 = -CEVA CONJUGATE OF X(55) (0.4277, 0.0625) X_182 = MIDPOINT OF BROCARD DIAMETER (0.5500, 0.1846) X_238 = -LINE CONJUGATE OF X(37) (1.6190, 1.4775) X_32 = 3rd POWER POINT (0.6400, 0.3332) X_560 = 4th POWER POINT (0.6520, 0.3639) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_692 = -CEVA CONJUGATE OF X(101) (0.2833, 0.5715) X_2175 = -ISOCONJUGATE OF X(85) (0.6102, 0.2574) A B C X25 X181 X31 X184 X55 X219 X182 X238 X32 X560 X6 X692 X2175 (a, b, c) = (5, 6, 7) | AB = 1

X2175 (X2-ISOCONJUGATE OF X85) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_2175 = X_2-ISOCONJUGATE OF X_85."""

        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,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02175(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2175 = X_2-ISOCONJUGATE OF X_85 on reference triangle ABC."""
            X_2175 = eval_trilinear_point(model, A, B, C, '(cot(A/2)*(sin(A))**(3))', ID="X_2175", classes=["selected", "target"])
            X_25 = eval_trilinear_point(model, A, B, C, 'sin(A)*tan(A)', ID="X_25", classes=["center", "incident"])
            X_181 = eval_trilinear_point(model, A, B, C, 'a*(b + c)**(2)/(b + c - a)', ID="X_181", classes=["center", "incident"])
            central_line(model, X_25, X_181, 25, 181, incident=True)
            X_31 = eval_trilinear_point(model, A, B, C, 'a**(2)', ID="X_31", classes=["center", "incident"])
            X_184 = eval_trilinear_point(model, A, B, C, 'a**(2)*cos(A)', ID="X_184", classes=["center", "incident"])
            central_line(model, X_31, X_184, 31, 184, incident=True)
            X_55 = eval_trilinear_point(model, A, B, C, 'a*(b + c - a)', ID="X_55", classes=["center", "incident"])
            X_219 = eval_trilinear_point(model, A, B, C, 'cos(A)*cot(A/2)', ID="X_219", classes=["center", "incident"])
            central_line(model, X_55, X_219, 55, 219, incident=True)
            return promote_point_to_top(model, X_2175)


        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_2175 on the given reference triangle."""
            model = create_model('X_2175 = X_2-ISOCONJUGATE OF X_85')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02175(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-02175.json"))
            write_center_svg(
                model_acute,
                here / "x-02175.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )