Static Function RadialGradient ( CX As Float, CY As Float, Radius As Float, FX As Float, FY As Float, Colors As Integer[], Positions As Float[] [ , Extend As Integer ] ) As PaintBrush

Creates a new radial gradient paint brush that interpolates colors between a focal point ( FX , FY ) and end points on a circle defined by ( CX0 , CY0 , Radius0 ), and using color stops defined by the Colors and Positions arguments.

• CX : x coordinate for the center of the circle.
• CY : y coordinate for the center of the circle.
• Radius : radius of the circle.
• FX : x coordinate for the gradient focal point.
• FY : y coordinate for the gradient focal point.
• Colors : an array of color stops.
• Positions : the position of each color, 0 being the gradient start, and 1 the gradient end.

The coordinates here are in brush space. For a new brush, brush space is identical to user space, but the relationship between the spaces can be changed by setting the PaintBrush.Matrix 属性.