X188

2nd MID-ARC POINT OF ANTICOMPLEMENTARY 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) { 2, 178 }: Central Line L(2, 178) { 9, 173 }: Central Line L(9, 173) { 40, 164 }: Central Line L(40, 164) { 166, 167 }: Central Line L(166, 167) { 1, 361 }: Central Line L(1, 361) { 174, 266 }: Central Line L(174, 266) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_266 = ISOGONAL CONJUGATE OF X(188) (0.6074, 0.2891) X_2 = CENTROID (0.5374, 0.2000) X_178 = 2nd MID-ARC POINT (0.5439, 0.2098) X_9 = MITTENPUNKT (0.5110, 0.1615) X_173 = CONGRUENT ISOSCELIZERS POINT (0.5924, 0.2741) X_40 = BEVAN POINT (0.4286, -0.0292) X_164 = INCENTER OF EXCENTRAL TRIANGLE (0.4930, 0.1115) X_166 = GERGONNE POINT OF EXCENTRAL TRIANGLE (0.5156, 0.1554) X_167 = NAGEL POINT OF EXCENTRAL TRIANGLE (0.4425, -0.0480) X_1 = INCENTER (0.5714, 0.2333) X_361 = -CEVA CONJUGATE OF X(1) (0.6578, 0.3310) X_174 = YFF CENTER OF CONGRUENCE (0.5813, 0.2549) X_188 = 2nd MID-ARC POINT OF ANTICOMPLEMENTARY TRIANGLE (0.5245, 0.1802) A B C X266 X2 X178 X9 X173 X40 X164 X166 X167 X1 X361 X174 X188 (a, b, c) = (5, 6, 7) | AB = 1

X188 (2nd MID-ARC POINT OF ANTICOMPLEMENTARY TRIANGLE) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_188 = 2nd MID-ARC POINT OF ANTICOMPLEMENTARY 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,
            centroid_of,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            mittenpunkt_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_00188(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_188 = 2nd MID-ARC POINT OF ANTICOMPLEMENTARY TRIANGLE on reference triangle ABC."""
            X_188 = eval_trilinear_point(model, A, B, C, 'csc(A/2)', ID="X_188", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_178 = eval_trilinear_point(model, A, B, C, '(cos(B/2) + cos(C/2))*csc(A)', ID="X_178", classes=["center", "incident"])
            central_line(model, X_2, X_178, 2, 178, incident=True)
            X_9 = mittenpunkt_of(model, A, B, C, ID="X_9", classes=["center", "incident"])
            X_173 = eval_trilinear_point(model, A, B, C, 'cos(B/2) + cos(C/2) - cos(A/2)', ID="X_173", classes=["center", "incident"])
            central_line(model, X_9, X_173, 9, 173, incident=True)
            X_40 = eval_trilinear_point(model, A, B, C, 'cos(B) + cos(C) - cos(A) - 1', ID="X_40", classes=["center", "incident"])
            X_164 = eval_trilinear_point(model, A, B, C, 'sin(B/2) + sin(C/2) - sin(A/2)', ID="X_164", classes=["center", "incident"])
            central_line(model, X_40, X_164, 40, 164, incident=True)
            return promote_point_to_top(model, X_188)


        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_188 on the given reference triangle."""
            model = create_model('X_188 = 2nd MID-ARC POINT OF ANTICOMPLEMENTARY TRIANGLE')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00188(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-00188.json"))
            write_center_svg(
                model_acute,
                here / "x-00188.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )