X1191

2nd SARAGOSSA POINT OF X56

< 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) { 1, 6 }: Incenter–Symmedian Line { 31, 56 }: Central Line L(31, 56) { 3, 595 }: Central Line L(3, 595) { 65, 614 }: Central Line L(65, 614) { 28, 957 }: Central Line L(28, 957) { 58, 999 }: Central Line L(58, 999) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1016 = -CROSS CONJUGATE OF X(99) (0.3832, 0.2666) X_1310 = COLLINGS TRANSFORM OF X(940) (0.1699, 0.4912) X_1 = INCENTER (0.5714, 0.2333) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_31 = 2nd POWER POINT (0.6228, 0.3008) X_56 = EXSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.6316, 0.3438) X_3 = CIRCUMCENTER (0.5000, 0.1021) X_595 = 2nd HATZIPOLAKIS-YIU POINT (0.6456, 0.3307) X_65 = ORTHOCENTER OF THE INTOUCH TRIANGLE (0.6041, 0.2933) X_614 = INTERSECTION OF LINES X(1)X(2) AND X(11)X(33) (0.6310, 0.2916) X_28 = CEVAPOINT OF X(19) AND X(25) (0.6285, 0.4382) X_957 = ISOGONAL CONJUGATE OF X(956) (0.6245, 0.3599) X_58 = ISOGONAL CONJUGATE OF X(10) (0.6107, 0.2850) X_999 = MIDPOINT OF X(1) AND X(57) (0.5926, 0.2722) X_1191 = 2nd SARAGOSSA POINT OF X(56) (0.6211, 0.2922) A B C X1016 X1310 X1 X6 X31 X56 X3 X595 X65 X614 X28 X957 X58 X999 X1191 (a, b, c) = (5, 6, 7) | AB = 1

X1191 (2nd SARAGOSSA POINT OF X56) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1191 = 2nd SARAGOSSA POINT OF X_56."""

        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,
            circumcenter_of,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            incenter_of,
            intersect_lines,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01191(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1191 = 2nd SARAGOSSA POINT OF X_56 on reference triangle ABC."""
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center"])
            X_31 = eval_trilinear_point(model, A, B, C, 'a**(2)', ID="X_31", classes=["center"])
            X_56 = eval_trilinear_point(model, A, B, C, 'a/(b + c - a)', ID="X_56", classes=["center"])
            central_line(model, X_1, X_6, 1, 6)
            central_line(model, X_31, X_56, 31, 56)
            X_1191 = intersect_lines(model, X_1, X_6, X_31, X_56, ID="X_1191", classes=["selected", "target"])
            X_3 = circumcenter_of(model, A, B, C, ID="X_3", classes=["center", "incident"])
            X_595 = eval_trilinear_point(model, A, B, C, 'r + R*(cos(2*A) - 1)', ID="X_595", classes=["center", "incident"])
            central_line(model, X_3, X_595, 3, 595, incident=True)
            return promote_point_to_top(model, X_1191)


        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_1191 on the given reference triangle."""
            model = create_model('X_1191 = 2nd SARAGOSSA POINT OF X_56')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01191(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-01191.json"))
            write_center_svg(
                model_acute,
                here / "x-01191.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )