from Circle
Creates a Rect around a circle.
This method traits the circle center as the rect center and circle's radius as side distance for each rect side.
This is equal to:
val cx = circle.center.x.
val cy = circle.center.y
val side = circle.radius
val rect = RectF(cx - side, cy - side, cx + side, cy + side)
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Parameters
circle
The circle with the center and side distance.