X767

EVEN (3, 4) CIRCUMCIRCLE POINT

< 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) { 75, 101 }: Central Line L(75, 101) { 76, 100 }: Central Line L(76, 100) { 85, 109 }: Central Line L(85, 109) { 110, 274 }: Central Line L(110, 274) { 112, 286 }: Central Line L(112, 286) { 108, 331 }: Central Line L(108, 331) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_766 = EVEN (3, 4) INFINITY POINT (0.2628, -0.3187) X_75 = ISOTOMIC CONJUGATE OF INCENTER (0.4988, 0.1682) X_101 = Ψ(INCENTER, SYMMEDIAN POINT) (0.2143, 0.5249) X_76 = 3rd BROCARD POINT (0.4567, 0.1388) X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.1429, 0.4666) X_85 = ISOTOMIC CONJUGATE OF X(9) (0.5610, 0.2421) X_109 = Ψ(INCENTER, CIRCUMCENTER) (0.3636, 0.5938) X_110 = FOCUS OF KIEPERT PARABOLA (0.2516, 0.5478) X_274 = ISOGONAL CONJUGATE OF X(213) (0.5168, 0.1843) X_112 = Ψ(ORTHOCENTER, SYMMEDIAN POINT) (0.5162, 0.6121) X_286 = -CROSS CONJUGATE OF X(27) (0.6033, 0.3810) X_108 = Ψ(CIRCUMCENTER, INCENTER) (0.5320, 0.6114) X_331 = ISOTOMIC CONJUGATE OF X(219) (0.6062, 0.4046) X_767 = EVEN (3, 4) CIRCUMCIRCLE POINT (0.8487, -0.2706) A B C X766 X75 X101 X76 X100 X85 X109 X110 X274 X112 X286 X108 X331 X767 (a, b, c) = (5, 6, 7) | AB = 1

X767 (EVEN (3, 4) CIRCUMCIRCLE POINT) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_767 = EVEN (3, 4) CIRCUMCIRCLE POINT."""

        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,
            isogonal_conjugate,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_00767(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_767 = EVEN (3, 4) CIRCUMCIRCLE POINT on reference triangle ABC."""
            X_766 = eval_trilinear_point(model, A, B, C, '(a**(2)*(b**(4) + c**(4)) - a**(3)*(b**(3) + c**(3)))', ID="X_766", classes=["center"])
            X_767 = isogonal_conjugate(model, A, B, C, X_766, ID="X_767", classes=["selected", "target"])
            X_75 = eval_trilinear_point(model, A, B, C, '1/a**(2)', ID="X_75", classes=["center", "incident"])
            X_101 = eval_trilinear_point(model, A, B, C, 'a/(b - c)', ID="X_101", classes=["center", "incident"])
            central_line(model, X_75, X_101, 75, 101, incident=True)
            X_76 = eval_trilinear_point(model, A, B, C, '1/a**(3)', ID="X_76", classes=["center", "incident"])
            X_100 = eval_trilinear_point(model, A, B, C, '1/(b - c)', ID="X_100", classes=["center", "incident"])
            central_line(model, X_76, X_100, 76, 100, incident=True)
            X_85 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)/(b + c - a)', ID="X_85", classes=["center", "incident"])
            X_109 = eval_trilinear_point(model, A, B, C, 'a/(cos(B) - cos(C))', ID="X_109", classes=["center", "incident"])
            central_line(model, X_85, X_109, 85, 109, incident=True)
            return promote_point_to_top(model, X_767)


        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_767 on the given reference triangle."""
            model = create_model('X_767 = EVEN (3, 4) CIRCUMCIRCLE POINT')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_00767(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-00767.json"))
            write_center_svg(
                model_acute,
                here / "x-00767.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )