问在安卓系统中从OpenCV Mat中获取圆向量？

EN

for (int i = 0; i < circles.cols(); i++)
{
    double vCircle[] = circles.get(0,i);
    double x = vCircle[0];
    double y = vCircle[1];
    double radius = vCircle[2];
}

vector<Vec3f> circles;

// do HoughCircles...

for(size_t i = 0; i < circles.size(); i++)
{
    Vec3f circle = circles[i];
    Point2f center(circle[0] /* x */, circle[1] /* y */);
    float radius = circle[2];

    // use the circle...
}

Mat circleImage = imread("circle.png", 0);
Mat circleDisp;

cvtColor(circleImage, circleDisp, CV_GRAY2RGB);

Mat circles;
HoughCircles(circleImage, circles, CV_HOUGH_GRADIENT, 2, circleImage.rows >> 2, 200, 100);

for( size_t i = 0; i < circles.cols; i++ )
{
    Vec3f vCircle = circles.at<Vec3f>(i);

    Point center(cvRound(vCircle[0]), cvRound(vCircle[1]));
    int radius = cvRound(vCircle[2]);
    // draw the circle center
    circle( circleDisp, center, 3, Scalar(0,255,0), -1, 8, 0 );
    // draw the circle outline
    circle( circleDisp, center, radius, Scalar(0,0,255), 3, 8, 0 );
}
namedWindow( "circles", 1 );
imshow( "circles", circleDisp );
waitKey();

HoughCircles(Mat image, Mat circles, int method, double dp, double minDist);

vector<Vec3f> myCircles = (vector<Vec3f>)circles;

HoughCircles(Mat image, vector<Vec3f>& circles, 
          int method, double dp, double minDist);