X3732

X3022com(EXCENTRAL 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) { 85, 169 }: Central Line L(85, 169) { 144, 153 }: Central Line L(144, 153) { 101, 514 }: Central Line L(101, 514) { 190, 646 }: Central Line L(190, 646) { 150, 1146 }: Central Line L(150, 1146) { 651, 653 }: Central Line L(651, 653) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_85 = ISOTOMIC CONJUGATE OF X(9) (0.5610, 0.2421) X_169 = -CEVA CONJUGATE OF X(1) (0.5497, 0.2510) X_144 = ANTICOMPLEMENT OF X(7) (0.4317, 0.0461) X_153 = REFLECTION OF X(20) IN X(100) (-0.1020, 1.1248) X_101 = Ψ(INCENTER, SYMMEDIAN POINT) (0.2143, 0.5249) X_514 = ISOGONAL CONJUGATE OF X(101) (1.0761, -0.0329) X_190 = YFF PARABOLIC POINT (0.0748, 0.3999) X_646 = BARYCENTRIC MULTIPLIER FOR YFF PARABOLA (-0.0898, 0.2051) X_150 = REFLECTION OF X(20) IN X(103) (1.1837, -0.4499) X_1146 = CENTER OF HYPERBOLA {{A,B,C,X(2),X(8)}} (0.6866, 0.0428) X_651 = TRILINEAR POLE OF LINE X(1)X(3) (0.3048, 0.5599) X_653 = TRILINEAR POLE OF LINE X(1)X(4) (0.5097, 0.6030) X_3732 = com(EXCENTRAL TRIANGLE) (0.1895, 0.5356) A B C X85 X169 X144 X153 X101 X514 X190 X646 X150 X1146 X651 X653 X3732 (a, b, c) = (5, 6, 7) | AB = 1

X3732 (X3022com(EXCENTRAL TRIANGLE)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3732 = X_3022com(EXCENTRAL 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_03732(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3732 = X_3022com(EXCENTRAL TRIANGLE) on reference triangle ABC."""
            X_3732 = eval_barycentric_point(model, A, B, C, '((a**(2) + b**(2) + c**(2) - 2*b*c)/(b - c))', ID="X_3732", classes=["selected", "target"])
            X_85 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)/(b + c - a)', ID="X_85", classes=["center", "incident"])
            X_169 = eval_trilinear_point(model, A, B, C, '- (sin(A))*(cos(A/2))**(2) + (sin(B))*(cos(B/2))**(2) + (sin(C))*(cos(C/2))**(2)', ID="X_169", classes=["center", "incident"])
            central_line(model, X_85, X_169, 85, 169, incident=True)
            X_144 = eval_trilinear_point(model, A, B, C, '(csc(A))*(tan(B/2) + tan(C/2) - tan(A/2))', ID="X_144", classes=["center", "incident"])
            X_153 = eval_barycentric_point(model, A, B, C, 'a**(7) - a**(6)*(b + c) - a**(5)*(b**(2) - 7*b*c + c**(2)) + a**(4)*(b + c)*(b**(2) - 6*b*c + c**(2)) - a**(3)*(b**(4) + 2*b**(3)*c - 10*b**(2)*c**(2) + 2*b*c**(3) + c**(4)) + a**(2)*(b - c)**(2)*(b + c)*(b**(2) + 6*b*c + c**(2)) + a*(b**(2) - c**(2))**(2)*(b**(2) - 5*b*c + c**(2)) - (b - c)**(4)*(b + c)**(3)', ID="X_153", classes=["center", "incident"])
            central_line(model, X_144, X_153, 144, 153, incident=True)
            X_101 = eval_trilinear_point(model, A, B, C, 'a/(b - c)', ID="X_101", classes=["center", "incident"])
            X_514 = eval_trilinear_point(model, A, B, C, '(b - c)/a', ID="X_514", classes=["center", "incident"])
            central_line(model, X_101, X_514, 101, 514, incident=True)
            return promote_point_to_top(model, X_3732)


        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_3732 on the given reference triangle."""
            model = create_model('X_3732 = X_3022com(EXCENTRAL TRIANGLE)')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03732(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-03732.json"))
            write_center_svg(
                model_acute,
                here / "x-03732.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )