如何从向量转换 <vector<Point> &gt;轮廓到CVPoint或cvpoint2d32f？

Question

How to convert from vector<vector<Point>> contours to CVPoint or cvpoint2d32f ? vector<vector<Point>> contours CvPoint cvp or cvpoint2d32f Cvp32

I have three objects in my contours , i just want to copy to CvPoint or CvPoint2d32F .

Answer 1

If you want to copy the i th vector and j th element in it to CvPoint :

CvPoint p = contours[i][j];

If you want to copy to cvPoint2D32f :

CvPoint2D32f p2 = cvPoint2D32f(contours[i][j].x, contours[i][j].y);

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PS: Suggestion: CvPoint or CvPoint2d32F are old OpenCV APIs , you should use new API Point or Point2f instead.