X1183

2nd SARAGOSSA POINT OF X21

< 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, 41 }: Central Line L(1, 41) { 6, 959 }: Central Line L(6, 959) { 8, 1036 }: Central Line L(8, 1036) { 391, 958 }: Central Line L(391, 958) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1 = INCENTER (0.5714, 0.2333) X_41 = -CEVA CONJUGATE OF X(31) (0.5823, 0.2244) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_959 = ISOGONAL CONJUGATE OF X(958) (0.6111, 0.3031) X_8 = NAGEL POINT (0.4694, 0.1333) X_1036 = ISOGONAL CONJUGATE OF X(388) (0.5632, 0.2044) X_391 = INTERSECTION OF LINES X(2,6) AND X(8,9) (0.4857, 0.1443) X_958 = INTERSECTION OF LINES X(1)X(6) AND X(2)X(12) (0.5166, 0.1682) X_1183 = 2nd SARAGOSSA POINT OF X(21) (0.5858, 0.2215) A B C X1 X41 X6 X959 X8 X1036 X391 X958 X1183 (a, b, c) = (5, 6, 7) | AB = 1

X1183 (2nd SARAGOSSA POINT OF X21) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_1183 = 2nd SARAGOSSA POINT OF X_21."""

        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,
            incenter_of,
            intersect_lines,
            nagel_point_of,
            promote_point_to_top,
            symmedian_point_of,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_01183(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_1183 = 2nd SARAGOSSA POINT OF X_21 on reference triangle ABC."""
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center"])
            X_41 = eval_trilinear_point(model, A, B, C, 'a**(2)*(b + c - a)', ID="X_41", classes=["center"])
            X_6 = symmedian_point_of(model, A, B, C, ID="X_6", classes=["center"])
            X_959 = eval_trilinear_point(model, A, B, C, '(1/((b + c - a)*(a**(2) + a*b + a*c + 2*b*c)))', ID="X_959", classes=["center"])
            central_line(model, X_1, X_41, 1, 41)
            central_line(model, X_6, X_959, 6, 959)
            X_1183 = intersect_lines(model, X_1, X_41, X_6, X_959, ID="X_1183", classes=["selected", "target"])
            X_8 = nagel_point_of(model, A, B, C, ID="X_8", classes=["center", "incident"])
            X_1036 = eval_trilinear_point(model, A, B, C, '(1/(1 + cos(B)*cos(C)))', ID="X_1036", classes=["center", "incident"])
            central_line(model, X_8, X_1036, 8, 1036, incident=True)
            return promote_point_to_top(model, X_1183)


        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_1183 on the given reference triangle."""
            model = create_model('X_1183 = 2nd SARAGOSSA POINT OF X_21')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_01183(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-01183.json"))
            write_center_svg(
                model_acute,
                here / "x-01183.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )