Description: The idea is to create a separate class library that can be used to draw three-dimensional pie charts. First, it looks very simple, because you already have a method called DrawPie in the Graphics class. This method receives the starting Angle and the expansion Angle as the parameters, so there is no longer any other problem. But what it implements is a flat pie chart, what I need is a three-dimensional perspective; If you are looking for such a control, this article will be perfect
PieChart solutions in this article include three kinds: PieSlice, PieChart3D and PieChartControl (inherited from System. Windows. Forms. The Panel controls). The PieSlice class provides the ability to draw 3-d pie charts, and you can set its start, expand Angle, color, height, and shadow type.
The PieChart3D class represents the entire diagram, with several constructors worthy of note that they can receive the following values:
Array of color values
Slice displacement (displacement) array
Thickness of section
Because the displacement is represented by the "depth" ratio and the ellipse radius of the slice; A minimum of 0 means there is no displacement, and a maximum of 1 represents this shape occupying the entire ellipse.
The thickness of the slice also represents a ratio (relative to the elliptical vertical distance) and the maximum permissible value is 0.5.
Of course, you can set the above values through the public function. Note: colors are reused if the number of colors is less than the number of slices. Likewise, if the displacement is gone, the last value will also be reused.
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