Use the Along tab of the Position dialog to create a position at a chosen parameter along a selected object.
Workspace — Select the workspace you are working in. The available options are:
- Relative — The position being defined is relative to another position which becomes the origin of the workspace. The positions are aligned with the active workplane or the global workspace if no workplane is active.
Relative mode is not always available since there may not be a suitable relative co-ordinate. In this case, select a suitable position (such as the intersection of two lines) and make it the origin of a relative workspace with the Become Originoption.
- Workplane — The position being defined is relative to the active workplane if one exists.
- World — The position being defined is relative to the global coordinate system.Note: If any items are locked, the locks are discarded when you select a different workspace.
Object — Select an object using the mouse. When an object is selected, its name is displayed in the text box.
Select one of the following options and enter a value, or use the slider:
- Proportion — Enter a measurement for the proportional distance from the start of the object. For example, enter 0.5 for half way along or enter 0.25 for a quarter (or 25%) of the way along from the start of the object.
- Distance — Enter a measurement from the start of the object.
- The slider indicates the portion from the start of the object. By default, the slider has 10 divisions. You can change the number of graduations on the slider by using
. Use the arrows to select a value or type a value into the box.
Locked and 
Unlocked — Click to toggle between Locked and Unlocked.Locking a value ensures that it remains fixed regardless of what happens to other components. The lock remains on until you click again to unlock it. When an editing box is affected by a lock, it is dimmed to show that it is unavailable.
Unlock all — Click this button to unlock all of the values above.
Become origin — Click this button to position the origin at the coordinates specified in the dialog. Any relative coordinates are measured from this origin.
Apply — Inputs the position. If the current operation allows multiple points, the dialog remains displayed ready for you to enter more points. Otherwise, the dialog is closed.
OK — Inputs the position and closes the dialog.
Cancel — Aborts the position entry.