Operation Manual

Edit Points toolbar
Open the Edit Points toolbar (Figure 58) by going to View > Toolbars > Edit Points on the main
menu bar. It will then appear whenever you select an object that is a curve or polygon and the
Points icon on the Drawing toolbar. Available tools on the Edit Points toolbar will depend on the
object selected and which object point has been selected.
Figure 58: Edit Points toolbar
Tangents
Before you can use tangents on an object, you must convert the object to a curve. Go to Modify >
Convert > To Curve on the main menu bar or right-click on the object and select Convert > To
Curve from the context menu.
Note
Tangents are only used on curves. If an object has been converted to a polygon and
a tangent is added, the object is automatically converted to a curve.
Symmetric transition
Symmetric Transition converts a corner point or a smooth point into a symmetrical point. Both
control points of the corner point are aligned in parallel and have the same length. They can only
be moved simultaneously and the degree of curvature is the same in both directions.
1) Convert the object to a curve and click on the selection handle where you want to place the
tangent.
2) Click on the Symmetric Transition icon on the Edit Points toolbar.
3) Click and drag one of the tangent handles to change the shape of the object. Any
movement of one tangent handle is carried over symmetrically to the other handle, as
shown in Figure 59.
Chapter 3 Working with Objects and Object Points 61