X959

ISOGONAL CONJUGATE OF X958

< 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, 65 }: Central Line L(2, 65) { 56, 81 }: Central Line L(56, 81) { 8, 181 }: Central Line L(8, 181) { 7, 274 }: Central Line L(7, 274) { 193, 330 }: Central Line L(193, 330) { 1, 573 }: Central Line L(1, 573) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_958 = INTERSECTION OF LINES X(1)X(6) AND X(2)X(12) (0.5166, 0.1682) X_2 = CENTROID (0.5374, 0.2000) X_65 = ORTHOCENTER OF THE INTOUCH TRIANGLE (0.6041, 0.2933) X_56 = EXSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.6316, 0.3438) X_81 = CEVAPOINT OF INCENTER AND SYMMEDIAN POINT (0.5849, 0.2510) X_8 = NAGEL POINT (0.4694, 0.1333) X_181 = APOLLONIUS POINT (0.6163, 0.3093) X_7 = GERGONNE POINT (0.5903, 0.2769) X_274 = ISOGONAL CONJUGATE OF X(213) (0.5168, 0.1843) X_193 = -CEVA CONJUGATE OF X(2) (0.7878, 0.4690) X_330 = ISOTOMIC CONJUGATE OF X(192) (0.4364, 0.1391) X_1 = INCENTER (0.5714, 0.2333) X_573 = ORTHOHARMONIC OF X(58) (0.4583, 0.2009) X_959 = ISOGONAL CONJUGATE OF X(958) (0.6111, 0.3031) A B C X958 X2 X65 X56 X81 X8 X181 X7 X274 X193 X330 X1 X573 X959 (a, b, c) = (5, 6, 7) | AB = 1

X959 (ISOGONAL CONJUGATE OF X958) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_959 = ISOGONAL CONJUGATE OF X_958."""

        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,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            isogonal_conjugate,
            nagel_point_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_00959(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_959 = ISOGONAL CONJUGATE OF X_958 on reference triangle ABC."""
            X_958 = eval_trilinear_point(model, A, B, C, '(b + c - a)*(a**(2) + a*b + a*c + 2*b*c)', ID="X_958", classes=["center"])
            X_959 = isogonal_conjugate(model, A, B, C, X_958, ID="X_959", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_65 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C)', ID="X_65", classes=["center", "incident"])
            central_line(model, X_2, X_65, 2, 65, incident=True)
            X_56 = eval_trilinear_point(model, A, B, C, 'a/(b + c - a)', ID="X_56", classes=["center", "incident"])
            X_81 = eval_trilinear_point(model, A, B, C, '1/(b + c)', ID="X_81", classes=["center", "incident"])
            central_line(model, X_56, X_81, 56, 81, incident=True)
            X_8 = nagel_point_of(model, A, B, C, ID="X_8", 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_8, X_181, 8, 181, incident=True)
            return promote_point_to_top(model, X_959)


        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_959 on the given reference triangle."""
            model = create_model('X_959 = ISOGONAL CONJUGATE OF X_958')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00959(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-00959.json"))
            write_center_svg(
                model_acute,
                here / "x-00959.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )