Add a PieItem to the display, providing a gradient fill for the pie color.
| C# | Visual Basic | Visual C++ |
- value (Double)
- The value associated with this PieItem instance.
- color1 (Color)
- The starting display color for the gradient Fill for this PieItem instance.
- color2 (Color)
- The ending display color for the gradient Fill for this PieItem instance.
- fillAngle (Single)
- The angle for the gradient Fill.
- displacement (Double)
- The amount this PieItem instance will be displaced from the center point.
- label (String)
- Text label for this PieItem instance.
