X1249

ISOGONAL CONJUGATE OF X1073

< 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) { 4, 6 }: Van Aubel Line { 19, 57 }: Central Line L(19, 57) { 2, 253 }: Central Line L(2, 253) { 1, 281 }: Central Line L(1, 281) { 108, 198 }: Central Line L(108, 198) { 112, 376 }: Central Line L(112, 376) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1073 = -CROSS CONJUGATE OF X(3) (0.4792, -0.4343) X_4 = ORTHOCENTER (0.6122, 0.3958) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_19 = CLAWSON POINT (0.6246, 0.4244) X_57 = ISOGONAL CONJUGATE OF X(9) (0.6138, 0.3110) X_2 = CENTROID (0.5374, 0.2000) X_253 = -CROSS CONJUGATE OF X(2) (3.5087, 32.5688) X_1 = INCENTER (0.5714, 0.2333) X_281 = -CROSS CONJUGATE OF X(9) (0.5796, 0.3202) X_108 = Ψ(CIRCUMCENTER, INCENTER) (0.5320, 0.6114) X_198 = -CEVA CONJUGATE OF X(6) (0.4741, -0.0381) X_112 = Ψ(ORTHOCENTER, SYMMEDIAN POINT) (0.5162, 0.6121) X_376 = CENTROID OF THE ANTIPEDAL TRIANGLE OF X(2) (0.4626, 0.0042) X_1249 = ISOGONAL CONJUGATE OF X(1073) (-0.9482, -15.9845) A B C X1073 X4 X6 X19 X57 X2 X253 X1 X281 X108 X198 X112 X376 X1249 (a, b, c) = (5, 6, 7) | AB = 1

X1249 (ISOGONAL CONJUGATE OF X1073) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1249 = ISOGONAL CONJUGATE OF X_1073."""

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


        def construct_x_01249(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1249 = ISOGONAL CONJUGATE OF X_1073 on reference triangle ABC."""
            X_1073 = eval_trilinear_point(model, A, B, C, '((cot(A))/(cos(A) - cos(B)*cos(C)))', ID="X_1073", classes=["center"])
            X_1249 = isogonal_conjugate(model, A, B, C, X_1073, ID="X_1249", classes=["selected", "target"])
            X_4 = orthocenter_of(model, A, B, C, ID="X_4", classes=["center", "incident"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center", "incident"])
            central_line(model, X_4, X_6, 4, 6, incident=True)
            X_19 = eval_trilinear_point(model, A, B, C, 'tan(A)', ID="X_19", 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_19, X_57, 19, 57, incident=True)
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_253 = eval_trilinear_point(model, A, B, C, '((csc(A))/(tan(B) + tan(C) - tan(A)))', ID="X_253", classes=["center", "incident"])
            central_line(model, X_2, X_253, 2, 253, incident=True)
            return promote_point_to_top(model, X_1249)


        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_1249 on the given reference triangle."""
            model = create_model('X_1249 = ISOGONAL CONJUGATE OF X_1073')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01249(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-01249.json"))
            write_center_svg(
                model_acute,
                here / "x-01249.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )