Editing an existing control point requires you to first select the control point to be modified. To select a control point, move the cursor over it in the Display window, hold down the Ctrl key and left-click the control point. Once selected, the control point will be displayed as a bold yellow square. While in this state, the control point position can be changed by either entering its new coordinates in the XYZ text field in the Point Placement frame or by holding the left mouse button and dragging the point to a new location.

Edit Control Point
After selection, a curve’s control point will appear as a bold yellow square.

The selected control point can now be moved by one of two methods:

  • Left-click on the point and drag it to a new location.

  • Enter the new XYZ coordinates in the Point Placement frame or XYZ Offset in the Point Placement, Advanced frame.

If the new location is not satisfactory, the Restore command within the Point Placement frame can be used to move the control point back to its original location. The Delete command will remove the selected point entirely.