Multi-Variate Thematic Mapping

How to create your own Bi-Variate Map: Lowell Middle Schools

1. Open up the following tables:
   C:\MapInfo\class\Lowell\Boundary
   C:\MapInfo\class\Lowell\Streets
   C:\MapInfo\class\Lowell\Waterways
   C:\MapInfo\staff\YOUR NAME\Middle Schools
   
2. Next we want to create our Thematic Map so we go to the word toolbar and select Map.
   1. Next we choose Create Thematic Map.
   2. Select Pie Charts and click Next. You are now shown the Create Thematic Map - Step 2 of 3 Box.
   3. Under Table select Middle_Schools.
   4. Within Fields from TABLE, choose two of the following:
      1. Asian
      2. Black
      3. Hispanic
      4. White
   5. To add fields Highlight the Field, and ten click Add. NOTE: That field should now appear in the Fields for Pie/Bar Chart.
   6. When you have two fields in the Fields for Pie/Bar Chart, click Next.
   7. You are now shown the Create Thematic Map - Step 3 of 3 Box. Click O.K. Voila!  Voila! You have just created your own Bi-Variate Thematic Map! How does it look?
      
3. Lets modify our map.
   1. Go to the word toolbar and select Map.
   2. Next we choose Modify Thematic Map.
   3. Select Styles under Customize.
   4. Now it's time to play!  Customize your map to your own specifications.
      
4. Save your WORKSPACE in your OWN GIS FOLDER which can be found under
   C:\mapinfo\staff\YOUR NAME Remember: This is a WORKSPACE, not a table, so choose File and then Save Workspace, name your workspace Middle Schools Pie.
   
5. Joining data from different Tables to Create a Bi-Variate Map - Open up the following tables:
   C:\MapInfo\class\Lowell\Boundary
   C:\MapInfo\Class\Lowell\Waterways
   C:\MapInfo\Class\Lowell\Other\Census 96
   C:\MapInfo\Class\Lowell\Other\Food Stores
           -or-
   C:\MapInfo\Class\Lowell\Other\Toxic Sites
   
6. Next we want to create our Thematic Map so…
1. Go to the word toolbar and select Map.
2. Next we choose Create Thematic Map.
3. Select Ranges and click Next. You are now shown the Create Thematic Map - Step 2 of 3 Box.
4. Under Table select Census 96
5. Under Fields select Join…
6. You are now shown Update Column for Thematic.
7. Under Get Value from Table: select either Food Stores or Toxic Sites.
   NOTE: This depends on which table you picked.
8. Under Calculate select Count.
9. Click OK. Now you are shown the Create Thematic Map - Step 2 of 3 Box again. Under Table, Census 96 should appear.
10. Under Fields, CountOf (table you picked) should appear.
    Click Next. Now you are shown the Create Thematic Map - Step 3 of 3 Box.
11. Click OK. Voila!  You have just created a Bi-Variate Thematic Map with data from 2 different tables!  How does it look?
    
7. Lets modify our map.
   1. Go to the Word Toolbar and select Map.
   2. Next we choose Modify Thematic Map.
   3. Select Styles under Customize. Nowit's time to play! Customize your map to your own specifications!
      
8. Save your WORKSPACE in your OWN GIS FOLDER which can be found under
   C:\mapinfo\staff\YOUR NAME Remember: This is a WORKSPACE, not a table, so choose File and then Save Workspace.

Now it's time to explain to your classmates what you have just done.
It is time to move onto the Next Section... Thematic Mapping Excercise.
 

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