X97

ISOGONAL CONJUGATE OF X53

< 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, 54 }: Central Line L(3, 54) { 2, 95 }: Central Line L(2, 95) { 216, 288 }: Central Line L(216, 288) { 110, 418 }: Central Line L(110, 418) { 276, 401 }: Central Line L(276, 401) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_53 = SYMMEDIAN POINT OF ORTHIC TRIANGLE (0.6164, 0.4390) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_54 = KOSNITA POINT (0.5880, 0.2176) X_2 = CENTROID (0.5374, 0.2000) X_95 = CEVAPOINT OF CENTROID AND CIRCUMCENTER (0.5172, 0.1562) X_216 = -CEVA CONJUGATE OF X(51) (0.5201, 0.1353) X_288 = CEVAPOINT OF X(6) AND X(54) (0.5936, 0.2442) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_418 = -CEVA-CONJUGATE OF X(216) (0.4854, 0.0640) X_276 = ISOGONAL CONJUGATE OF X(217) (0.5554, 0.2771) X_401 = BAILEY POINT (-0.0758, -1.4044) X_97 = ISOGONAL CONJUGATE OF X(53) (0.4798, 0.0756) A B C X53 X3 X54 X2 X95 X216 X288 X110 X418 X276 X401 X97 (a, b, c) = (5, 6, 7) | AB = 1

X97 (ISOGONAL CONJUGATE OF X53) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_97 = ISOGONAL CONJUGATE OF X_53."""

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


        def construct_x_00097(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_97 = ISOGONAL CONJUGATE OF X_53 on reference triangle ABC."""
            X_53 = eval_trilinear_point(model, A, B, C, 'tan(A)*cos(B - C)', ID="X_53", classes=["center"])
            X_97 = isogonal_conjugate(model, A, B, C, X_53, ID="X_97", classes=["selected", "target"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
            X_54 = eval_trilinear_point(model, A, B, C, 'sec(B - C)', ID="X_54", classes=["center", "incident"])
            central_line(model, X_3, X_54, 3, 54, incident=True)
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_95 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)*sec(B - C)', ID="X_95", classes=["center", "incident"])
            central_line(model, X_2, X_95, 2, 95, incident=True)
            X_216 = eval_trilinear_point(model, A, B, C, 'sin(2*A)*cos(B - C)', ID="X_216", classes=["center", "incident"])
            X_288 = eval_trilinear_point(model, A, B, C, '((sec(B - C))/(b*cos(C - A) + c*cos(B - A)))', ID="X_288", classes=["center", "incident"])
            central_line(model, X_216, X_288, 216, 288, incident=True)
            return promote_point_to_top(model, X_97)


        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_97 on the given reference triangle."""
            model = create_model('X_97 = ISOGONAL CONJUGATE OF X_53')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00097(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-00097.json"))
            write_center_svg(
                model_acute,
                here / "x-00097.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )