X3727

X2295com(INCENTRAL 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) { 1, 32 }: Central Line L(1, 32) { 257, 350 }: Central Line L(257, 350) { 37, 1953 }: Central Line L(37, 1953) { 517, 2295 }: Central Line L(517, 2295) { 960, 2238 }: Central Line L(960, 2238) { 55, 3148 }: Central Line L(55, 3148) 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_32 = 3rd POWER POINT (0.6400, 0.3332) X_257 = ISOGONAL CONJUGATE OF X(172) (0.5240, 0.1822) X_350 = -HIRST INVERSE OF X(75) (-3.5227, -3.1370) X_37 = CROSSPOINT OF INCENTER AND CENTROID (0.5567, 0.2158) X_1953 = BICENTRIC SUM OF PU(21) (0.5856, 0.2841) X_517 = ISOGONAL CONJUGATE OF X(104) (0.8180, 0.7154) X_2295 = -ISOCONJUGATE OF X(1178) (0.5682, 0.2347) X_960 = INTERSECTION OF LINES X(1)X(6) AND X(5)X(10) (0.5041, 0.1533) X_2238 = -ISOCONJUGATE OF X(741) (2.2505, 2.0410) X_55 = INSIMILICENTER(CIRCUMCIRCLE, INCIRCLE) (0.5490, 0.1921) X_3148 = -CEVA CONJUGATE OF X(6) (0.5769, 0.3032) X_3727 = com(INCENTRAL TRIANGLE) (0.5524, 0.2055) A B C X1 X32 X257 X350 X37 X1953 X517 X2295 X960 X2238 X55 X3148 X3727 (a, b, c) = (5, 6, 7) | AB = 1

X3727 (X2295com(INCENTRAL TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3727 = X_2295com(INCENTRAL 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,
            incenter_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03727(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3727 = X_2295com(INCENTRAL TRIANGLE) on reference triangle ABC."""
            X_3727 = eval_barycentric_point(model, A, B, C, '(a*(2*a*b*c + b**(3) + c**(3)))', ID="X_3727", classes=["selected", "target"])
            X_1 = incenter_of(model, A, B, C, ID="X_1", classes=["center", "incident"])
            X_32 = eval_trilinear_point(model, A, B, C, 'a**(3)', ID="X_32", classes=["center", "incident"])
            central_line(model, X_1, X_32, 1, 32, incident=True)
            X_257 = eval_trilinear_point(model, A, B, C, '1/(a**(3) + a*b*c)', ID="X_257", classes=["center", "incident"])
            X_350 = eval_trilinear_point(model, A, B, C, '(a**(2) - b*c)*b**(2)*c**(2)', ID="X_350", classes=["center", "incident"])
            central_line(model, X_257, X_350, 257, 350, incident=True)
            X_37 = eval_trilinear_point(model, A, B, C, 'b + c', ID="X_37", classes=["center", "incident"])
            X_1953 = eval_trilinear_point(model, A, B, C, 'sin(2*B) + sin(2*C)', ID="X_1953", classes=["center", "incident"])
            central_line(model, X_37, X_1953, 37, 1953, incident=True)
            return promote_point_to_top(model, X_3727)


        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_3727 on the given reference triangle."""
            model = create_model('X_3727 = X_2295com(INCENTRAL TRIANGLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03727(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-03727.json"))
            write_center_svg(
                model_acute,
                here / "x-03727.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )