In this exercise, you will delete a point that is referenced in several point groups. Then you will use the Show Changes to All Point Groups feature to check the point groups for changes and update the point groups to remove the deleted point.
On the Points menu, click Point Settings, then click the Preferences tab.
Under Point Group Manager, verify that the Check Status on Startup check box is selected.
This setting detects and reports changes to point groups if the project point database is altered.
Click OK.
On the Points menu, click Edit Points
Erase.Type N to select the Numbers option.
Type 1020 and press ENTER to erase point number 1020.
On the Points menu, click Point Management
Point Group Manager.Notice that three of the four point groups, Borehole, Day2, and Day2-DTM are now marked with different icons to indicate that they are out-of-date. In this case, the point groups are considered to be out-of-date because their point lists reference a point that no longer exists in the project.
Click the Show Changes to All Point Groups icon (the third icon from the left).
The Point Group Manager checks for changes to the point groups and then displays the Changed Point Groups dialog box.
The Add/Remove column indicates what type of action is required in order to update the point group. In this case, the column contains "Remove" because the point 1020 no longer exists in the project and should be removed from the point groups.
Click the Update Point Group(s) icon.
The point groups are updated and the Point Group Manager is redisplayed.
Notice that the Day2 and Day2-DTM point groups no longer have the out-of-date icon associated with them, but the Borehole group still does. This is because you locked the Borehole group so it cannot be updated.
Use the following steps to unlock the Borehole point group and update it.
Right-click the Borehole group and click Unlock Point Group Properties.
The lock symbol is removed from the Borehole point group.
Right-click the Borehole group again and click Update.
Close the Point Group Manager.
This concludes the point group lesson. In the next lesson, you'll learn about description keys.