2011

6 To create a complex property evaluation, insert an AND or OR operator,
and then insert another property, operator, and value combination.
Every operator must be preceded by a property. For example, to find
parcels whose last purchase date is after 1990 and before 2005, the
expression must look like this:
Purchase_Date > 1990 AND Purchase_Date < 2005
7 Validate your expression.
8 To reuse your expression in the future, from the Options list in the Data
Table, select Save Expression.
9 When the expression is complete and valid, click OK.
AutoCAD Map 3D highlights both the selected rows in the Data Table
and the associated features on your map.
Quick Reference
MAPDATATABLE
Allows you to view, edit, and filter feature data
Click Edit ➤ Data Table.
Menu
Table
Icon
MAPDATATABLECommand Line
In Map Explorer or Display Manager, click the Table
button
Task Pane
Data Table Dialog BoxDialog Box
Creating Calculated Properties
You can calculate a new property for any feature, based on its existing native
properties and any joined data for that feature layer. You can use the resulting
property to filter or select data. For example, you can calculate the area of
parcels and then select parcels whose areas are above a certain area value.
You can store the resulting calculation as a new property in the Data Table.
It will be available whenever you open the map in which you created it, but
1132 | Chapter 8 Analyzing Data