Create Polygon Topology - Select Centroids dialog box
 
 
 
NoteThis functionality applies only to drawing objects.

Use this dialog box to select the point and block objects to use as centroids for the polygons.

To create a polygon topology

Click Create tabTopology panelNew. At the Command prompt, enter maptopocreate.

Each polygon in a polygon topology has a centroid, which is a point or block element within the polygon, and contains information about the area it encloses. Centroid information is stored as object data and saved with the map. Each centroid is given a unique ID number, which is automatically processed whenever you use a topology command.

You can select all point or block elements in the map or select them manually. You can also filter (restrict) object selection to a subset of objects, in which you include only the objects that are on specified layers, are of specified block types, or in specified object classes.

Select All

Use all point or block objects that meet the filter criteria as centroids.

Select Manually

Include only the point or block objects that you manually select in the map. Click Select Objects to select the objects. Only objects that meet the filter criteria will be selected.

Layers

Specify the layers to use to filter (restrict) object selection to a subset of objects, in which you include only the objects that are on the specified layers. This filter is used for both automatic and manual selection of objects. To select from a list of layers in the map, click Select Layers. To use all layers, enter an asterisk (*) or leave the box blank.

Block Names

Specify the point or block objects to use to filter object selection. To use all points and blocks, enter an asterisk (*) or leave the box blank. To select from a list of block definitions in the drawing set, click Select Blocks. To select point objects, select ACAD_POINT.

Object Classes

Specify the object classes to use to filter (restrict) object selection to a subset of objects, in which you include only the objects that are in the specified object classes. To select from a list of object classes in the map, click Select Object Classes. To use all object classes, enter an asterisk (*) or leave the box blank.

Cancel

Close the dialog box without creating the topology.

Back

Display the previous dialog box in the list.

Next
Finish

Create the topology using the current settings. The Finish is available after you enter a valid, unique name for the topology.