# Pipe Laying
After drawing the path, you can route pipes along it, placing the pipes onto the path.


How to use:
Click "Piping." Select the type of pipe to be generated.
Select the path line. Choose whether to check "Select Chain, Switch Start Point" as needed.
Choose whether to use pipe parameters and grade-driven settings as required.
Dialog Box Control Instructions:
Select Chain: When checked, clicking on a line segment of the path will automatically pick the entire chain to which the segment belongs for routing the pipe. If the generated pipe type is a straight pipe, only individual line segments can be picked one by one, and chain selection is not supported. Chain selection is supported for bent pipes and flexible hoses.
Switch Start Point: When checked, you can change the starting position of the routed pipe. After selecting a continuous path, the start point can only be switched between the start and end points of the continuous segments. Straight pipes do not support switching the start point, while bent and flexible hoses do.
Use Pipe Parameters: When checked, all subsequent dimension parameters after path creation are grayed out and automatically use data from the "Pipe Parameters" settings. If unchecked, users can customize the pipe parameters.
Grade-Driven: When checked, you can select an existing grade rule to input data.