How do i convert vector<Point2f> to vector<Point>?

C++
1

Hii, i want to use fillConvexPoly function in OpenCV C++ and it takes vector as argument. Is there any way to convert vector to vector?
Any help would be appreciated, Thanks.

2

see the sample code below

you can convert like Mat(pts_f).convertTo(pts, CV_32S);

#include "opencv2/imgproc.hpp"
#include "opencv2/highgui.hpp"

using namespace std;
using namespace cv;

int main(int argc, char** argv)
{
    vector<vector<Point> > contours;
    Mat img = Mat::zeros(500, 500, CV_8UC1);

    circle(img, Point(250, 250), 100, Scalar(255));

    findContours(img, contours, RETR_LIST, CHAIN_APPROX_SIMPLE);

    vector<Point2f> pts_f;
    vector<Point> pts;
    Mat(contours[0]).convertTo(pts_f,CV_32F);

    Mat(pts_f).convertTo(pts, CV_32S);
    fillConvexPoly(img,  pts, Scalar(255));

    imshow("result", img);
    waitKey();

    return 0;
}
3

… related, once again

https://stackoverflow.com/questions/69463174/how-do-i-convert-vectorpoint2f-to-vectorpoint-in-opencv-c
and