小编Fli*_*ppy的帖子

正如标题所说,我正在使用StackPane来堆叠我的AnchorPanes(AnchorPaneName.setFront()).我想知道哪个AnchorPane位于顶部/前面.是否有可能获得前面的AnchorPane？

我想遍历一个二cv::Mat值化并保存值为255.

cv::Mat bin;                                                    
std::vector<cv::Point2i> binVec;
int h = 0;
int white = 254;    //Just for comparison with pointer of Matrix value
for (int i = 0; i < bin.rows; i++, h++) {
    for (int j = 0; j < bin.cols; j++, h++) {
        int* p = bin.ptr<int>(h);   //Pointer to bin Data, should loop through Matrix
        if (p >= &white)            //If a white pixel has been found, push i and j in binVec
            binVec.push_back(cv::Point2i(i, j));
    }
} …