The Topology Properties dialog box lets you view the status, feature classes, and rules associated with a topology.
To access topology properties, right-click the topology in the Project pane and choose Properties.
The Toplogies Properties dialog box has four tabs: General, Feature Classes, Rules, and Errors.
The General tab of the Toplogies Properties dialog box contains the following information:
- Name—The name of the topology.
- Cluster Tolerance—Any two vertices that fall within a horizontal distance of the cluster tolerance are assumed to be at the same location. During topology validation, the vertices that fall within the cluster tolerance will be given the same x,y coordinate.
- Z Cluster Tolerance—Any two vertices that fall within a vertical distance of the Z cluster tolerance are assumed to be at the same location. During topology validation, they will be given the same z-coordinate.
- Status—This section shows whether or not the topology has been validated and if there are dirty areas to examine.
Feature Classes tab
The Feature Classes tab shows the number of coordinate accuracy ranks and Z ranks in the topology and what rank is assigned to each participating feature class.
When you define a topology, you rank the feature classes within the topology to control how vertices are moved when they fall within the cluster tolerance of one another. Feature classes with a rank of 1 are considered to have the highest accuracy. Coordinate ranks allow you to ensure that reliably placed vertices are the anchor locations toward which less reliable vertices are moved during topology validation.
Topology rules define the permissible spatial relationships between features. The Rules tab displays the topology rules defined on feature classes and subtypes participating in the topology.
The Errors tab offers a summary of errors and exceptions found in the topology. Similar to the Rules tab, the grid shows the topology rules and their participating feature classes and subtypes. On the right of the grid, the errors and exceptions associated with each topology rule are displayed. Errors are generated when you validate a topology and a topology rule is violated. See Introduction to editing topology for more information.