如何在 C++ OpenCv 中使用向量点？
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How To Use Vector Points in C++ OpenCv?
提问by Pixel
Could you guys Please help me in providing good notes or links ?
你们能帮我提供好的笔记或链接吗？
For Ex : I need to create a vector and dump these x,y values in Vector ..
例如：我需要创建一个向量并将这些 x,y 值转储到 Vector ..
Data { X , Y } = {1,1} , {1,2} , {1,3}, {2,1},{2,2},{2,3},{3,1},{3,2},{3,3}
回答by zakinster
A vector of point in OpenCV is just a standard C++ STLvector containing OpenCV Pointobjects :
OpenCV 中的点向量只是包含OpenCV Point对象的标准C++ STL向量：
std::vector<Point> data;
data.push_back(Point(1,1));
data.push_back(Point(1,2));
data.push_back(Point(1,3));
data.push_back(Point(2,1));
...
Alternatively, if you're using C++11or later you can use a list initialization:
或者，如果您使用C++11或更高版本，则可以使用列表初始化：
std::vector<Point> data = {Point(1,1), Point(1,2), Point(1,3), Point(2,1)};
Take a look at the C++ reference for STL Vector
看一看STL Vector的C++ 参考
回答by Ed S.
So... you want to use a vector to store data... wherein each element is a pair of ints? Well, if you don't want to create your own type, use a tuple or pair:
所以......你想使用一个向量来存储数据......其中每个元素都是一对ints？好吧，如果您不想创建自己的类型，请使用元组或对：
#include <vector>
#include <utility>
// ...
std::vector<std::pair<int, int> v;
// ...
v.push_back(std::make_pair(1, 1));
// ...
auto p = c[offset];
int x = p.first;
int y = p.second;
