Use pie charts on your map to analyze more than one variable at a time. You can compare the size of the pie wedges in each chart to obtain information about a record in your table, or compare one pie wedge in all the pie charts to draw conclusions about a variable across all the records, or compare the diameter of the pie charts to obtain information about your entire table.
To create a map with pie charts:
- Click on a Map window containing the layer you wish to create the theme for.
- On the MAP tab, in the Content group, click Add Theme to open the Create Thematic Map - Step 1 of 3 wizard panel.
- Click Pie Charts and select a template from the list.
- Click Next to open the Create Thematic Map - Step 2 of 3 wizard panel.
- Choose the table on which you want to base the pie charts, and choose the fields or expressions containing the data values.
- Click Next to open the Create Thematic Map - Step 3 of 3 wizard panel. Use this panel to customize the map or its legend (see the Customizing a Pie Chart).
- Click OK.
Customizing a Pie Chart
Customize your Pie Chart thematic map using the Styles and/or Legend button. To go back to any of the earlier wizard panel to make changes, click Back. You can customize two areas on a pie chart map:
- Styles
- Map Legend
The Pie Charts styles include the diameter of the pies and the color of each pie wedge, the type of pie chart, the pies' scale, the charts' orientation, and other pie attributes, such as the border of the pies, the angle at which the first pie wedge begins, and the order of the pie wedges (clockwise, counter-clockwise).
To customize a pie chart map:
- Click on a Map window containing the layer you wish to create the theme for.
- On the MAP tab, in the Content group, click Add Theme to open the Create Thematic Map - Step 1 of 3 wizard panel.
- Click Pie Charts and select a template from the list.
- Click Next to open the Create Thematic Map - Step 2 of 3 wizard panel.
- Choose the table on which you want to base the pie charts, and choose the fields or expressions containing the data values.
- Click Next to open the Create Thematic Map - Step 3 of 3 wizard panel. Use this panel to customize the map or its legend.
- Click Styles to open the Customize Pie Styles dialog box.
- Choose the items you want to customize and make the desired changes.
- Click Options for additional customizing features.
- Click OK to save your changes.
Customizing the Legend of a Pie Chart
MapInfo Pro creates a legend automatically when you create a thematic map. Keep the default settings or customize your legend to suit your needs. Click Legend in the Customize section of the Create Thematic Map - Step 3 of 3 wizard panel to customize your map legend's fonts, titles, and more (see Customizing a Thematic Map Legend).