Topology Edit Node
Feature Description
The Topology Edit Node function is used to edit topological edges or object nodes. After enabling topology editing, you can move, delete, or add nodes while maintaining the connectivity of shared boundaries. If a node is shared by multiple layer objects, all referenced objects will be edited synchronously.
Function Entry
- Edit Data tab ->Object Editing group->Topology Editing drop-down menu ->Topology Edit Node.
Operation Steps
- Enable the editing state of the relevant layers in the Layer Manager, then turn on Topology Edit Switches in the Edit Data tab ->Object Editing group->Topology Editing drop-down menu. After turning it on, the topological graph will be overlaid on the map.
- Select a topological edge, click the Topology Edit Node button, then all nodes on this topological edge will be displayed in an editable state. You can perform the following operations on the nodes:
- Move Node: Select one or more nodes (support holding Shift or Ctrl for multi-selection). Hold the left mouse button and drag. During the move, a rubber band stretching preview will appear on the map. After dragging to the desired position, release the left mouse button to preview the move effect, and click the left mouse button again to complete the move operation.
- New Node: Click the left mouse button at the position on the selected topological edge where you want to add a node to complete the node addition.
- Delete Node: Select one or more nodes on the topological edge, then press the Delete key to delete the selected nodes.
- For topological nodes (normal nodes not on edges), only the move operation is allowed. Directly hold the left mouse button and drag after selection.
- When editing nodes, if you do not want the shared objects connected to the selected topological edge or topological node to be modified, you can uncheck them in the Shared Object panel.
Notes:- Supports setting the topology edit tolerance. The tolerance refers to the distance between object nodes. Within this distance, edges and nodes are considered coincident and share the same location.
- By default, the system automatically calculates the minimum tolerance value based on the data. In general, it is recommended to use the default value.
- To modify it, click the Tolerance Settings button. In the pop-up Topology Edit Tolerance dialog box, manually modify the value. Then click the Reset button next to the input box to switch back to the default value.
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