- $"{{Ellipse: cx = %f{this.Cx}, cy = %f{this.Cy}, a = %f{this.A}, b = %f{this.B}, alpha = %f{this.Alpha}}}"
-
+ $"{{{nameof Ellipse}: {nameof this.Cx} = %f{this.Cx}, {nameof this.Cy} = %f{this.Cy}, {nameof this.A} = %f{this.A}, {nameof this.B} = %f{this.B}, {nameof this.Alpha} = %f{this.Alpha}}}"