X305

ISOTOMIC CONJUGATE OF X25

< 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, 39 }: Central Line L(2, 39) { 22, 99 }: Central Line L(22, 99) { 95, 183 }: Central Line L(95, 183) { 264, 325 }: Central Line L(264, 325) { 304, 306 }: Central Line L(304, 306) { 287, 394 }: Central Line L(287, 394) 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_2 = CENTROID (0.5374, 0.2000) X_39 = BROCARD MIDPOINT (0.5778, 0.2305) X_22 = EXETER POINT (0.4143, -0.1221) X_99 = STEINER POINT (0.1109, 0.4322) X_95 = CEVAPOINT OF CENTROID AND CIRCUMCENTER (0.5172, 0.1562) X_183 = TRILINEAR PRODUCT X(75)X(182) (0.4700, 0.1275) X_264 = ISOTOMIC CONJUGATE OF CIRCUMCENTER (0.5720, 0.3293) X_325 = -HIRST INVERSE OF X(69) (-0.3370, -0.7398) X_304 = ISOTOMIC CONJUGATE OF X(19) (0.3683, 0.0513) X_306 = ISOTOMIC CONJUGATE OF X(27) (0.3924, 0.0579) X_287 = -HIRST INVERSE OF X(98) (0.7437, -0.0511) X_394 = -CEVA CONJUGATE OF X(3) (0.3778, 0.0284) X_305 = ISOTOMIC CONJUGATE OF X(25) (0.3258, 0.0397) A B C X25 X2 X39 X22 X99 X95 X183 X264 X325 X304 X306 X287 X394 X305 (a, b, c) = (5, 6, 7) | AB = 1

X305 (ISOTOMIC CONJUGATE OF X25) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_305 = ISOTOMIC CONJUGATE OF X_25."""

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


        def construct_x_00305(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_305 = ISOTOMIC CONJUGATE OF X_25 on reference triangle ABC."""
            X_305 = eval_trilinear_point(model, A, B, C, 'b**(4)*c**(4)*cos(A)', ID="X_305", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_39 = eval_trilinear_point(model, A, B, C, 'a*(b**(2) + c**(2))', ID="X_39", classes=["center", "incident"])
            central_line(model, X_2, X_39, 2, 39, incident=True)
            X_22 = eval_trilinear_point(model, A, B, C, 'a*(b**(4) + c**(4) - a**(4))', ID="X_22", classes=["center", "incident"])
            X_99 = eval_trilinear_point(model, A, B, C, 'b*c/(b**(2) - c**(2))', ID="X_99", classes=["center", "incident"])
            central_line(model, X_22, X_99, 22, 99, incident=True)
            X_95 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)*sec(B - C)', ID="X_95", classes=["center", "incident"])
            X_183 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)*cos(A-  omega  )', ID="X_183", classes=["center", "incident"])
            central_line(model, X_95, X_183, 95, 183, incident=True)
            return promote_point_to_top(model, X_305)


        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_305 on the given reference triangle."""
            model = create_model('X_305 = ISOTOMIC CONJUGATE OF X_25')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00305(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-00305.json"))
            write_center_svg(
                model_acute,
                here / "x-00305.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )