Handles are graphical attachments to objects that allow you to manipulate objects in the Layout editor. Two general types of handles exist: Implicit and Explicit. Implicit handles are created automatically, while Explicit handles are created by the user.
Implicit Handles
- In Layout, every primitive object (void, line, polygon) and compound object (via, footprint, sub-circuit) contains Implicit handles — identified by small red squares — which can be used to resize the object. There are two kinds of Implicit handles: Edge handles and Point handles. Edge handles pertain to lines and polygons, and can be used to drag an edge. Point handles pertain mainly to points, and can be dragged/deleted separately (but Point handles can also be inserted into the edges of lines and polygons). Edge and Point handles can be selected by clicking upon them, or by using the Handle Select Tool.
- Every Layout object contains an implicit Center handle — identified by two small red circles connected by a line — which can be used to rotate or drag the object.
- Selections containing multiple objects have one Implicit handle which is placed at the geometric center of the data.
Explicit Handles
- Footprints may contain Explicit handles — identified by small black squares — that are created by users and can be used to drag or resize the footprint.