Pitney Bowes MapInfo Professional - Manual (Page 203)

The maximum number of nodes for regions and polylines is 1,048,572 nodes for a single polygon region
or polyline. The limit drops by seven nodes for every two additional polygons.
To add a node:
1. On the Drawing Toolbar, click the Add Node button.
2. Move the cursor to the point on the segment where you want to add a node.
3. Click to add the node. Press the Backspace key to delete the last node added.
4. On the Edit menu, point to New Row. A new row is added to the bottom of the table.
Adding Nodes to an Object (Overlay Nodes Command)
To add nodes to an existing object:
1. Select one or more objects in the editable map layer of the active Map window. These are the objects
to which you want to add nodes.
2. Choose Objects > Set Target. The objects you selected in Step 1 appear in a different style to
indicate that they are the editing targets.
3. Select one or more objects from any layer of the active Map window. Presumably, these are objects
that intersect your target object(s).
4. Choose Objects > Overlay Nodes.
MapInfo Professional adds nodes, if appropriate, to the target object(s).
When you choose Overlay Nodes, MapInfo Professional adds nodes to the current target objects.
MapInfo Professional calculates all points where the target objects intersect the currently selected objects;
MapInfo Professional then adds nodes to the target objects at the points of intersection unless the target
objects already have nodes at those locations. If the target objects do not intersect the selected objects,
MapInfo Professional does not add any nodes.
If you use Overlay Nodes to add nodes to a line, MapInfo Professional converts the line to a polyline.
If you use Overlay Nodes to add nodes to an ellipse, rectangle or rounded rectangle object, MapInfo
Professional converts the object to a region. Overlay Nodes does not affect text or point objects, and
you may not use point or text objects to add nodes to other objects.
Drawing Objects
Drawing objects in MapInfo Professional is easy. Once you have made the layer editable, choose the
appropriate tool. Using the shape tools, you can draw arcs, ellipses, circles, lines, rectangles, and rounded
rectangles on your map. You can either draw the object directly on the Cosmetic Layer (and save it to
another or new layer later) or make a map layer editable and draw the objects there.
Once you have drawn the object, you can move the object, delete it, copy it to the Clipboard, or paste
it to another Map window.
Also, you can delete the last node of the object by pressing the Backspace key. If there is only one node
left in the object, it will not be deleted.
Specifying an Object's Spatial Attributes
If the selected object is editable (resides in an editable layer) then you can specify attributes for the
object by accessing that Objects Attributes dialog box.
If the object is not editable then you can only access a read-only dialog box. Note:
To specify an object's spatial attributes:
203 MapInfo Professional User Guide
Chapter 8: Drawing and Editing Objects