X334

ISOTOMIC CONJUGATE OF X238

< 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) { 12, 85 }: Central Line L(12, 85) { 75, 141 }: Central Line L(75, 141) { 10, 274 }: Central Line L(10, 274) { 2, 292 }: Central Line L(2, 292) { 150, 295 }: Central Line L(150, 295) { 320, 660 }: Central Line L(320, 660) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_238 = -LINE CONJUGATE OF X(37) (1.6190, 1.4775) X_12 = {X(1),X(5)}-HARMONIC CONJUGATE OF X(11) (0.5641, 0.2407) X_85 = ISOTOMIC CONJUGATE OF X(9) (0.5610, 0.2421) X_75 = ISOTOMIC CONJUGATE OF INCENTER (0.4988, 0.1682) X_141 = COMPLEMENT OF SYMMEDIAN POINT (0.5061, 0.1663) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_274 = ISOGONAL CONJUGATE OF X(213) (0.5168, 0.1843) X_2 = CENTROID (0.5374, 0.2000) X_292 = -HIRST INVERSE OF X(291) (1.0127, 0.0417) X_150 = REFLECTION OF X(20) IN X(103) (1.1837, -0.4499) X_295 = ISOGONAL CONJUGATE OF X(242) (1.0582, 0.0142) X_320 = ISOTOMIC CONJUGATE OF X(80) (-2.6735, -3.5993) X_660 = TRILINEAR POLE OF LINE X(1)X(39) (0.9483, -0.0755) X_334 = ISOTOMIC CONJUGATE OF X(238) (1.0545, 0.0278) A B C X238 X12 X85 X75 X141 X10 X274 X2 X292 X150 X295 X320 X660 X334 (a, b, c) = (5, 6, 7) | AB = 1

X334 (ISOTOMIC CONJUGATE OF X238) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_334 = ISOTOMIC CONJUGATE OF X_238."""

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


        def construct_x_00334(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_334 = ISOTOMIC CONJUGATE OF X_238 on reference triangle ABC."""
            X_334 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)/(a**(2) - b*c)', ID="X_334", classes=["selected", "target"])
            X_12 = eval_trilinear_point(model, A, B, C, '1 + cos(B - C)', ID="X_12", classes=["center", "incident"])
            X_85 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)/(b + c - a)', ID="X_85", classes=["center", "incident"])
            central_line(model, X_12, X_85, 12, 85, incident=True)
            X_75 = eval_trilinear_point(model, A, B, C, '1/a**(2)', ID="X_75", classes=["center", "incident"])
            X_141 = eval_trilinear_point(model, A, B, C, 'b*c*(b**(2) + c**(2))', ID="X_141", classes=["center", "incident"])
            central_line(model, X_75, X_141, 75, 141, incident=True)
            X_10 = spieker_center_of(model, A, B, C, ID="X_10", classes=["center", "incident"])
            X_274 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)/(b + c)', ID="X_274", classes=["center", "incident"])
            central_line(model, X_10, X_274, 10, 274, incident=True)
            return promote_point_to_top(model, X_334)


        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_334 on the given reference triangle."""
            model = create_model('X_334 = ISOTOMIC CONJUGATE OF X_238')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00334(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-00334.json"))
            write_center_svg(
                model_acute,
                here / "x-00334.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )