CDATA96 allows you to build a Thematic Map of one data variable and add a Bar Graph to the
Thematic Map to display another data variable.
Note: to achieve a visually appealing result the geographic level should be large.
In this example we are going to produced a Thematic Map of Australian, showing the
Unemployment Rate in each state. We will also include a Bar Graph that shows the Total Persons
born in Australia, Overseas & in the United Kingdom.
Firstly we will check your CDATA96 Setup Options. Select CDATA96 > Setup CDATA96 Options.
Select the Mapping tab and ensure the open method is Add to Map and Show Browser.
Select the Thematic tab and ensure the build method is 3 step dialog.
Ensure the open method is Add to Map & Show Browser.
Select OK to close the Setup Options dialog box.
Now we are going to create our geography select CDATA96 > QuickBuild >
Add Geography > select Australia as the State > and State as the Boundary Level >
Select All > OK. - the following dialog box is displayed.
Name your geography. eg. Australian States
Select OK. - your geography is placed into QuickBuild.
Next we create the data items that we are going to use to create our Thematic Map.
select CDATA96 > QuickBuild > Add Data > Highlight the Table BO1 Selected Characteristics
> Transfer > select Unemployment_Rate_P > Choose > select Australian_Born_Persons >
Choose > select Born _OS_Total_P > Highlight the Table Birthplace (Countries) by Sex >
Transfer > select United_Kingdom_P > Choose > OK. - the following dialog box is displayed.
Name your data. eg Unemployment Rate & Birthplace Data
Select Save. - your Custom Data item is placed into QuickBuild.
Now we are going to create our Thematic Map.
Select CDATA96 > QuickBuild > Select your geography. eg Australian States >
Select your data. eg Unemployment Rate & Birthplace Data > select Thematic >
select OK. - the 1st step dialog box is displayed.
Select Ranges > select Next. - the 2nd step dialog box is displayed.
In the Table field select Unemploymen_for_Australian
In the Field area select the data item to create our Thematic by.
Place a tick in the ignore Zeros or Blanks box.
Select Next. - the 3rd step dialog box is displayed.
Customise the Ranges if you would like to produce a more visually effective Thematic Map.
Do this by clicking on the Ranges or Styles icon and changing the variables/colours within.
Now we will amend the Title of our Legend.
Select the Legend icon
Change the Legend title to something more suitable. eg Unemployment Rate by Australian States,
and then Click on OK
Click on OK again and our Thematic Map is produced.
Now we create our Bar Chart to be placed on this Thematic Map.
Select Map > Create Thematic Map. - the 1st step dialog box is displayed again.
Select Bar Charts > select Next. - the 2nd Step dialog box is displayed again.
In the Table field select Unemployment_for_Australian.
Highlight the Australian_Born_Persons in the Fields from Table and select Add.
Highlight the Born_OS_Total_P in the Fields from Table and select Add.
Highlight the United_Kingdom_P in the Fields from Table and select Add.
Select Next. - the 3rd step dialog box is displayed again.
Customise the Styles if you would like to produce a more visually effective Bar Graph.
Do this by clicking on the Styles icon and changing the variables/colours within.
- the following dialog box is displayed.
Amend the colours of each data item to what you require, by clicking on the Brush icon.
Select the Chart Type required. ie Multiple Bars
Select the Chart Dimensions, Height, Value & Width - if required
By selecting Options you can change the Orientation, Bar Attributes & the Graduated Size - if required. Select OK.
Now we will amend the Title of our Legend.
Select the Legend icon. - the following dialog box is displayed.
Change the Legend title to something more suitable. eg Born in Australia - Overseas - United Kingdom.
Amend the Fonts of the Legend Title, Subtitle and Range Labels to what you desire.
Amend the Range Label Titles by highlighting the range Label and overtyping a more suitable range description.
Select OK. - your Legend is updated.
Select OK. - your Thematic Map is displayed.
To embed your Legend into you map, select File > Run Map Basic Program > select the Legends.mbx file > Open.
Then select Tools > Legend Manager > Create Embedded Legend.
- your legend is embedded into your map. - as below
Note: the Labels for the 9 states and the Unemployment Rate labels have been added using the Auto Label function, by selecting Map > Layer Control. The water has been added using the rectangle tool on the drawing toolbar as per hint Colouring Maps and Adding Frames.
Click here to see other Census resources on this site.
This page first published 18 February 2000, last updated 30 January 2006