_ComputeBounds
static BRect _ComputeBounds(const BPoint* points, uint32 count);
fBounds = _ComputeBounds(fPoints, fCount);
BRect bounds = BPolygon::_ComputeBounds(pointArray, numPoints);
BRect bounds = BPolygon::_ComputeBounds(pointArray, numPoints);
BRect bounds = BPolygon::_ComputeBounds(pointArray, numPoints);
BRect bounds = BPolygon::_ComputeBounds(pointArray, numPoints);