X3896

X3741com[INVERSE(n(3rd EULER TRIANGLE))]

< 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) { 65, 145 }: Central Line L(65, 145) { 42, 321 }: Central Line L(42, 321) { 38, 519 }: Central Line L(38, 519) { 100, 1402 }: Central Line L(100, 1402) { 239, 1621 }: Central Line L(239, 1621) { 10, 1962 }: Central Line L(10, 1962) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_65 = ORTHOCENTER OF THE INTOUCH TRIANGLE (0.6041, 0.2933) X_145 = ANTICOMPLEMENT OF NAGEL POINT (0.6735, 0.3333) X_42 = CROSSPOINT OF INCENTER AND SYMMEDIAN POINT (0.5880, 0.2495) X_321 = ISOTOMIC CONJUGATE OF X(81) (0.4800, 0.1527) X_38 = CROSSPOINT OF X(1) AND X(75) (0.5443, 0.1976) X_519 = ISOGONAL CONJUGATE OF X(106) (0.9566, 0.6107) X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.1429, 0.4666) X_1402 = -BETH CONJUGATE OF X(42) (0.6396, 0.3585) X_239 = -LINE CONJUGATE OF X(42) (4.2109, 3.7992) X_1621 = TCC-PERSPECTOR OF X(81) (0.5431, 0.1961) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_1962 = BICENTRIC SUM OF PU(32) (0.5646, 0.2243) X_3896 = com[INVERSE(n(3rd EULER TRIANGLE))] (0.6960, 0.3462) A B C X65 X145 X42 X321 X38 X519 X100 X1402 X239 X1621 X10 X1962 X3896 (a, b, c) = (5, 6, 7) | AB = 1

X3896 (X3741com[INVERSE(n(3rd EULER TRIANGLE))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3896 = X_3741com[INVERSE(n(3rd EULER TRIANGLE))]."""

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


        def construct_x_03896(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3896 = X_3741com[INVERSE(n(3rd EULER TRIANGLE))] on reference triangle ABC."""
            X_3896 = eval_barycentric_point(model, A, B, C, '(2*a**(2)-b*c) * (b+c)', ID="X_3896", classes=["selected", "target"])
            X_65 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C)', ID="X_65", classes=["center", "incident"])
            X_145 = eval_trilinear_point(model, A, B, C, 'b*c*(3*a - b - c)', ID="X_145", classes=["center", "incident"])
            central_line(model, X_65, X_145, 65, 145, incident=True)
            X_42 = eval_trilinear_point(model, A, B, C, 'a*(b + c)', ID="X_42", classes=["center", "incident"])
            X_321 = eval_trilinear_point(model, A, B, C, '(b + c)*b**(2)*c**(2)', ID="X_321", classes=["center", "incident"])
            central_line(model, X_42, X_321, 42, 321, incident=True)
            X_38 = eval_trilinear_point(model, A, B, C, 'b**(2) + c**(2)', ID="X_38", classes=["center", "incident"])
            X_519 = eval_trilinear_point(model, A, B, C, '(2*a - b - c)/a', ID="X_519", classes=["center", "incident"])
            central_line(model, X_38, X_519, 38, 519, incident=True)
            return promote_point_to_top(model, X_3896)


        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_3896 on the given reference triangle."""
            model = create_model('X_3896 = X_3741com[INVERSE(n(3rd EULER TRIANGLE))]')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03896(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-03896.json"))
            write_center_svg(
                model_acute,
                here / "x-03896.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )