How can I add cv::Point to array or vector in C++ / OpenCV?

Question

I'm trying to add a cv::Point to an array or vector every iteration so I can use fitEllipse on the total data. I feel like there is a simple solution to this that I'm missing? I've tried declaring a double array but obviously I cannot convert from cv::Point to double. I'm new to using vectors and points so any help would be greatly appreciated. Thanks!

Answer 1

Try this out:

cv::vector<cv::Point> pointList;

Adding new point is easy:

pointList.push_back(newPoint); // newPoint is your cv::Point object

You can access to member elements in your list like this:

for (int n = 0; n < pointList.size(); n++)
{
    cv::Point myPoint = pointList[n];
}