X1002

ISOGONAL CONJUGATE OF X1001

< 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) { 42, 57 }: Central Line L(42, 57) { 6, 105 }: Central Line L(6, 105) { 55, 81 }: Central Line L(55, 81) { 2, 210 }: Central Line L(2, 210) { 8, 274 }: Central Line L(8, 274) { 65, 279 }: Central Line L(65, 279) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1001 = MIDPOINT OF X(1) AND X(9) (0.5412, 0.1974) X_42 = CROSSPOINT OF INCENTER AND SYMMEDIAN POINT (0.5880, 0.2495) X_57 = ISOGONAL CONJUGATE OF X(9) (0.6138, 0.3110) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_105 = Λ(INCENTER, SYMMEDIAN POINT) (0.9714, -0.0933) X_55 = INSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.5490, 0.1921) X_81 = CEVAPOINT OF INCENTER AND SYMMEDIAN POINT (0.5849, 0.2510) X_2 = CENTROID (0.5374, 0.2000) X_210 = -CEVA CONJUGATE OF X(37) (0.4925, 0.1466) X_8 = NAGEL POINT (0.4694, 0.1333) X_274 = ISOGONAL CONJUGATE OF X(213) (0.5168, 0.1843) X_65 = ORTHOCENTER OF THE INTOUCH TRIANGLE (0.6041, 0.2933) X_279 = ISOGONAL CONJUGATE OF X(220) (0.6236, 0.3540) X_1002 = ISOGONAL CONJUGATE OF X(1001) (0.5967, 0.2704) A B C X1001 X42 X57 X6 X105 X55 X81 X2 X210 X8 X274 X65 X279 X1002 (a, b, c) = (5, 6, 7) | AB = 1

X1002 (ISOGONAL CONJUGATE OF X1001) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1002 = ISOGONAL CONJUGATE OF X_1001."""

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


        def construct_x_01002(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1002 = ISOGONAL CONJUGATE OF X_1001 on reference triangle ABC."""
            X_1001 = eval_trilinear_point(model, A, B, C, 'a**(2) - a*(b + c) - 2*b*c', ID="X_1001", classes=["center"])
            X_1002 = isogonal_conjugate(model, A, B, C, X_1001, ID="X_1002", classes=["selected", "target"])
            X_42 = eval_trilinear_point(model, A, B, C, 'a*(b + c)', ID="X_42", classes=["center", "incident"])
            X_57 = eval_trilinear_point(model, A, B, C, '1/(b + c - a)', ID="X_57", classes=["center", "incident"])
            central_line(model, X_42, X_57, 42, 57, incident=True)
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            X_105 = eval_trilinear_point(model, A, B, C, '1/(b**(2) + c**(2) - a*(b + c))', ID="X_105", classes=["center", "incident"])
            central_line(model, X_6, X_105, 6, 105, incident=True)
            X_55 = eval_trilinear_point(model, A, B, C, 'a*(b + c - a)', ID="X_55", 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_55, X_81, 55, 81, incident=True)
            return promote_point_to_top(model, X_1002)


        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_1002 on the given reference triangle."""
            model = create_model('X_1002 = ISOGONAL CONJUGATE OF X_1001')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01002(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-01002.json"))
            write_center_svg(
                model_acute,
                here / "x-01002.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )