Modifying Object Nodes
Any of the following node operations can be performed:
§ Moving a Node in the XY Plane
§ Moving a Node in the Z Plane
§ Moving a Node Based on Where the Mouse is Pointing
§ Deleting a Node from an Object
Moving a Node in the XY Plane
To move a node in the XY plane in the 3D Window:
1. Select a single object for editing. See the “Selecting Objects for Editing” section in this chapter for further information.
2. On the top bar of the object’s property sheet, click both Edit Nodes 
and XY Plane 
.
3. In the 3D Window, place the cursor over one of the object’s nodes. The node turns blue, and the cursor changes to Move mode 
.
4. Click the node and drag it to the required location in the XY Plane. Release the mouse button to set the node at the current location.
Moving a Node in the Z Plane
To move a node in the Z plane in the 3D Window:
1. Select a single object for editing. See the “Selecting Objects for Editing” section in this chapter for further information.
2. On the top bar of the object’s property sheet, click both Edit Nodes and Z Axis 
.
3. In the 3D Window, place the cursor over one of the object’s nodes. The node turns blue, and the cursor changes to Move mode 
.
4. Click the node and drag it up and down to change the node’s altitude. Release the mouse button to set the node at the current altitude.
Moving a Node Based on Where the Mouse is Pointing
This mode is recommended for moving nodes of an object that are above a 3DML layer or other terrain object.
To move a node based on where the mouse is pointing:
1. Select a single object for editing. See the “Selecting Objects for Editing” section in this chapter for further information.
2. On the top bar of the object’s property sheet, click Edit Nodes and then do either of the following:
§ If you want to set position based on mouse and snap the node to another object, click Snap Based on Snapping Options 
. See "Setting Snapping Options" in this chapter for information.
§ If you don’t want to snap the object to another object, click Set Position Based on Mouse 
.
Note: This mode is available for objects with any Altitude Method other than On Terrain.
3. In the 3D Window, place the cursor over one of the object’s nodes. The node turns blue, and the cursor changes to XYZ Magnet mode 
.
4. Click the node and drag it to the required location in the 3D Window. Release the mouse button to set the node at the current location. If snapping to an object, move and snap the node to an edge (green dot) or vertex (blue dot) of any existing polyline, polygon, or 2D shape.
Adding a Node to an Object
You can add a node to an object that is built from a few nodes (e.g., Polyline, 2D and 3D Polygon).
To add a node:
1. Select a single object for editing. See the “Selecting Objects for Editing” section in this chapter for further information.
2. On the top bar of the object’s property sheet, click Edit Nodes . A red dot appears wherever a node can be added to the object.
3. If you want to add a node, in the 3D Window, place the cursor over a red dot (it immediately turns light blue and the cursor changes to Move mode 
), and then drag it to the required location.
Deleting a Node from an Object
You can delete an existing node from an object that is built from a few nodes (e.g., Polyline, 2D and 3D Polygon).
To delete a node:
1. Select a single object for editing. See the “Selecting Objects for Editing” section in this chapter for further information.
2. On the top bar of the object’s property sheet, click Edit Nodes .
3. In the 3D Window, place the cursor over the object’s node you want to delete. The node turns blue, and the cursor changes to Move mode .
4. Right-click and select Delete Node on the shortcut menu.