The Spline tool allows you to create curves when you are in the process of creating a new model or adding to an existing model. To access this tool, click 
().
The Spline command is used to create a spline through all the points that you specify.
Dialog elements
- Coordinates
- Specify, in order, the coordinates through which the spline will pass.
Click directly on the model.
Tip: To select multiple coordinates, hold down the control key. Click Add to add the selected coordinates to the Selected coordinates list. - Selected coordinates
- Shows the list of coordinates that you have selected for the new spline to pass through. Tip: Click on the coordinates in the Selected coordinates list and click Remove to remove any unwanted coordinates.
- Add
- Adds the specified coordinate to the list of coordinates through which the spline will pass.
- Remove
- Removes the specified coordinates from the list of coordinates through which the spline will pass.