@id%npoints(@OpInput2)
时间: 2023-10-24 10:05:01 浏览: 15
As an AI language model, I am programmed to understand the concept of null. Null refers to the absence of value or the lack of a valid value in a variable, field, or expression. In programming, null is often used to indicate the absence of an object or the lack of a value in a data structure, such as an array or a list. Null is also commonly used in database systems to represent a missing or unknown value in a field or record.
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houdini @id%npoints(@OpInput2)
Null is a term used in computer programming and databases to indicate the absence of a value or a missing value. It is typically represented by the keyword "null" or "NULL" and is often used to indicate that a variable or field has not been assigned a value or that data is missing from a database record. In programming languages, null may also be used to indicate the absence of a valid object or pointer.
/** * @brief get all points of the trajectory * @return a vector of trajectory points */
这段代码是TrajectoryAnalyzer类的一个成员函数,名为get_all_points。它没有参数,返回一个向量(vector)类型的trajectory points,即轨迹点的集合。
函数签名如下:
```cpp
std::vector<TrajectoryPoint> get_all_points() const;
```
该函数的作用是获取轨迹的所有点。它返回一个包含所有轨迹点的向量,可以在外部代码中使用该向量进行遍历、分析或其他操作。
请注意,具体的实现细节可能会因系统设计和需求而有所不同。以上只是一个示例的函数签名和功能描述。
如果您对于TrajectoryAnalyzer类或者有关该函数的进一步问题,请随时提问。