Pitney Bowes MapInfo Professional - Manual (Page 218)

In most maps, nodes of various objects are usually connected, especially for adjoining streets and
boundaries that share a common border. Using the Move Duplicate Nodes Option under Map Window
Preferences, you can specify where MapInfo Professional looks for connected nodes in order to move
them in unison. Choose the None of the Layers button to turn the option off. Choose the Same Layer
button so that connected nodes in the same layer are moved when one of them is moved.
Autotracing Objects
You can trace the nodes of an object, for example, the Yucatan in Mexico using the Polyline or Polygon
tools. This makes it easier to digitize objects that share a border because you do not have to re-digitize
the shared border. You can also use this feature to trace an existing polygon/polyline network, for
example, a street, a county, or some other polyline or boundary. A Status Bar entry displays showing
that this mode is enabled.
To trace a border:
1. Open a Map layer you want to trace a polygon or polyline on.
2. Make the layer editable.
3. Press the S key to turn on the Snap process and the T key to turn on the Autotrace functionality.
4. Select the Polygon or Polyline tool from the Drawing toolbar and select the first node you want
to trace.
5. Drag the mouse along the nodes of the line or object you want to trace.
The rules that apply to AutoTrace are:
• To enable the AutoTrace mode, you must use the Polygon or Polyline tool.
• You must press S to enable the Snap feature to use the AutoTrace feature.
You can use the Shift or Ctrl key functionality for this mode. When you AutoTrace a polygon, the path
contains the least number of nodes necessary to complete the AutoTrace, which is similar to the Shift
key behavior. If you want to trace the longer path, press the Ctrl key to override default AutoTrace
direction. When you are autotracing a closed polyline, the trace line never crosses the start and end
points of the polyline (so the Ctrl key has no effect).
MapInfo Professional 12.5 218
Working with Text on the Map