wordpress网站做成小程序,建筑工程网课视频,开发平台多少钱,网易企业邮箱可以保存多少邮件写程序时要想下各种可能出错的情况#xff0c;提前给出错误提示#xff0c;项目大了就可以比较容易找错误。
比如#xff0c;当特征点个数小于4时不能计算单应矩阵#xff0c;所以当个数小于4时先输出提示#xff1a;
if (matchePoints.size()10)for (int i 0; i… 写程序时要想下各种可能出错的情况提前给出错误提示项目大了就可以比较容易找错误。
比如当特征点个数小于4时不能计算单应矩阵所以当个数小于4时先输出提示
if (matchePoints.size()10)for (int i 0; i11; i){imagePoints1.push_back(keypoints1[matchePoints[i].Idx1].pt);imagePoints2.push_back(keypoints2[matchePoints[i].Idx2].pt);}else if (matchePoints.size() 4 )for (int i 0; i matchePoints.size(); i){imagePoints1.push_back(keypoints1[matchePoints[i].Idx1].pt);imagePoints2.push_back(keypoints2[matchePoints[i].Idx2].pt);}else{cout 特征点个数小于4 endl;exit(1);}再比如动态申请指针指向的内存空间时有可能出现内存申请不成功的情况所以每次申请完都先判断是否申请成功
double* wid (double*)malloc((num1) *sizeof(double));//存储每个矩形的宽
if (wid NULL)
{ cout Fail to allocate memory to wid endl; exit(1);
}
