The target district is the selected record shown in the Districts Browser. One record is always selected as the target. In redistricting, the target district receives the map object(s) that you assign from another district(s). MapInfo Pro automatically sets the target district to be the first district in the Districts Browser, but you can change it to any district you desire by clicking on a district record's selection box in the first column of the Districts Browser.
There are two ways to set the target district:
- Select a record from the Districts Browser.
- Select a map object on the Map window, make the Districts Browser active, and on the MAP tab, in the Options group, click Redistricter, and Set Target. The district that owns the map object becomes the target district.
The target district is identified in the Districts Browser as the selected record. The target district is also identified on the StatusBar in the lower-left corner of the screen.
It is very easy to select a target district in the Districts Browser when you have a small number of districts. However, when you have many districts (the limit is 594), you may find it quicker to select a map object and choose the Set Target command. If your default setting is Most Recently Used (MAP tab, in the Options group, click Redistricter, and Options), when you select a map object that is out of view in the Browser, MapInfo Pro will bring the corresponding record up near the top of the Districts Browser. You can then use either method described above to set the target district.
To change the target district, simply select another district in the Districts Browser or select a map object in a different district and choose Set Target.
There is always one (and only one) target district selected at a time. You cannot unselect the district.
When you select map objects, MapInfo Pro temporarily assigns them to the target district and recalculates the totals for each district. The changes are instantly reflected in the Districts Browser. The object count for the target district increases as do the totals for the data columns to reflect the addition of the selected objects. At the same time, the object count and data totals for the source district decrease to reflect the removal of the object from that district.
Adding a New District
To add a new district when a redistricting session is in effect:
- With the District Browser as the active window, on the MAP tab, in the Options group, click Redistricter, and Add District. MapInfo Pro creates a new district and adds the district to the bottom of the Districts Browser. MapInfo Pro assigns a default name to the new district, such as District 7.
To change the new district's name:
- Click on the name as it appears in the Districts Browser.
- Type the new name.
Assigning Map Objects to the Target District
If you select map objects while a redistricting session is in effect, MapInfo Pro tentatively assigns those objects to the current target district.
To make this assignment permanent, on the MAP tab, in the Options group, click Redistricter, and Assign District.
When you choose Assign District, MapInfo Pro stores the target district's name in the row of each of the selected objects. Thus, if you assign objects to a district named Northeast, MapInfo Pro stores Northeast in the row of each selected object.
Changing the Name of a District
To change the name of a district:
- Click the district name as it appears in the Districts Browser window and type in a new name.
Changing the Fill Color of a District
To change the fill color of a district, click the Brush sample that appears in the Districts Browser window.
For a description of Pattern, Foreground, and Background see, Region Style Dialog Box.
Choosing the Target District
To choose the target district, do one of the following:
- Check the box of the appropriate row of the Districts Browser window.
- Select a map object, making the Districts Browser window active, and on the MAP tab, in the Options group, click Redistricter, and Set Target.
Ordering Districts and Grid Display
To order districts, do one of the following from the Redistricter Options dialog box:
- Choose Most Recently Used to display districts in the order that you most recently used them.
- Choose Alphabetical to display districts alphabetically. The Districts Browser is sorted and redisplayed when you click OK.
- Choose Unordered to display districts in the order they were created.
To save the display order:
- Choose Save as Default to save the display order setting as the default.
- Leave unchecked to use for current session only.