Rectangular sort....

bool compRECx(cv::Rect &a, cv::Rect &b)
{
    
	return a.x < b.x;
}
bool compRECy(cv::Rect &a, cv::Rect &b)
{
    
	return a.y < b.y;
}

void HTChipDetector::resortrecAndloop(std::vector<cv::Rect> &rec, std::vector<cv::Point> &loop, int maxHj, int maxHj1, int flag)
{
    
	if (rec.size() > 1)
	{
    
		if (flag == 1)// First y Again x
		{
    
			std::sort(rec.begin(), rec.end(), compRECy);
			int x = 1;
			int y = 1;
			std::vector<cv::Rect> rectemp, recres;
			std::vector<std::vector<cv::Rect>> rectempV;
			loop.push_back(cv::Point(x, y));
			rectemp.push_back(rec[0]);
			int firsty = rec[0].y;
			for (int i = 1; i < rec.size(); i++)
			{
    
				if (rec[i].y - firsty > maxHj)// Too much spacing , Belongs to the next line 
				{
    
					std::sort(rectemp.begin(), rectemp.end(), compRECx);//x Save after sorting 
					rectempV.push_back(rectemp);
					rectemp.clear();
					x++;
					y = 0;
					firsty = rec[i].y;
				}
				rectemp.push_back(rec[i]);
				y++;
				loop.push_back(cv::Point(x, y));
			}
			std::sort(rectemp.begin(), rectemp.end(), compRECx);//x Save after sorting 
			rectempV.push_back(rectemp);
			for (int i = 0; i < rectempV.size(); i++)
			{
    
				if (rectempV[i].size() > 0)
				{
    
					recres.insert(recres.end(), rectempV[i].begin(), rectempV[i].end());
				}
			}
			rec = recres;

		}
		else
		{
    
			std::sort(rec.begin(), rec.end(), compRECx);
			int x = 1;
			int y = 1;
			std::vector<cv::Rect> rectemp, recres;
			std::vector<std::vector<cv::Rect>> rectempV;
			loop.push_back(cv::Point(x, y));
			rectemp.push_back(rec[0]);
			int firstx = rec[0].x;
			for (int i = 1; i < rec.size(); i++)
			{
    
				if (rec[i].x - firstx > maxHj1)// Too much spacing , Belongs to the next line 
				{
    
					std::sort(rectemp.begin(), rectemp.end(), compRECy);//x Save after sorting 
					rectempV.push_back(rectemp);
					rectemp.clear();
					y++;
					x = 0;
					firstx = rec[i].x;
				}
				rectemp.push_back(rec[i]);
				x++;
				loop.push_back(cv::Point(x, y));
			}
			std::sort(rectemp.begin(), rectemp.end(), compRECy);//x Save after sorting 
			rectempV.push_back(rectemp);
			for (int i = 0; i < rectempV.size(); i++)
			{
    
				if (rectempV[i].size() > 0)
				{
    
					recres.insert(recres.end(), rectempV[i].begin(), rectempV[i].end());
				}
			}
			rec = recres;
		}

	}

	return;
}