# online(Line, Distance) & onliner(Line, Relative distance) & onlinex(Line, X coordinate) & onliney(Line, Y coordinate) \&onlinez(Line, Z coordinate)
**online(Line, Distance) → \[X coordinate (number), Y coordinate (number), Z coordinate (number)]**
This function calculates the point coordinate at the exact given distance along a line defined by its start and end coordinate values. **onliner(Line, Relative distance) → \[X coordinate (number), Y coordinate (number), Z coordinate (number)]**
This function calculates the point coordinate at the exact relative distance along a line defined by its start and end coordinate values. (0) specifies the start point and (1) specifies the end point. **onlinex(Line, X coordinate)** **→ \[X coordinate (number), Y coordinate (number), Z coordinate (number)]**
This function calculates the point coordinate given X coordinate along a line defined by its start and end coordinate values. **onliney(Line, Y coordinate)** **→ \[X coordinate (number), Y coordinate (number), Z coordinate (number)]**
This function calculates the point coordinate given Y coordinate along a line defined by its start and end coordinate values. **onlinez(Line, Z coordinate)** **→ \[X coordinate (number), Y coordinate (number), Z coordinate (number)]**
This function calculates the point coordinate given Z coordinate along a line defined by its start and end coordinate values.
**Example:**
```xml
```
 To view this example in the library, see ( )