Function boundingRect

jni/venus/opencv_utility.cpp:10–46

for int version use cv::boundingRect(points);

// for int version use cv::boundingRect(points);
Rect2f boundingRect(const std::vector<Point2f>& points)
{
	assert(points.size() >= 3);
#if 1
	const Point2f& p0 = points[0];
	float left = p0.x, right = p0.x, top = p0.y, bottom = p0.y;
	for(const Point2f& point: points)
	{
		if(point.x < left)
			left = point.x;
		else if(point.x > right)
			right = point.x;

		if(point.y < top)
			top = point.y;
		else if(point.y > bottom)
			bottom = point.y;
	}
 
#else
	assert(points.size() == 81);  // from 0 to 80
	float left = std::min(points[0].x, points[1].x);
	float right = std::max(points[11].x, points[12].x);
	float top = points[16].y + 1;
	float bottom = points[6].y + 1;

#  ifndef NDEBUG
	for(const Point2f& point: points)
	{
		assert(left <= point.x && point.x < right);
		assert(top <= point.y && point.y < bottom);
	}
#  endif  // NDEBUG
#endif

	return Rect2f(left, top, right - left, bottom - top);
}

float distance(const cv::Point2f& pt0, const cv::Point2f& pt1)
{