Creating a Dot Density Map - MapInfo_Pro - 2023

A dot density map enables you to examine raw counts of data (such as population). Each dot represents a number of units. That number, multiplied by the total number of dots in the region, equals the data value for that region.

To create a dot density map:

1. Click on a Map window containing the layer you wish to create the theme for.
2. On the MAP tab, in the Content group, click Add Theme to open the Create Thematic Map - Step 1 of 3 wizard panel.
3. Click Dot Density and select a template from the list.
4. Click Next to open the Create Thematic Map - Step 2 of 3 wizard panel.
5. Choose the table on which you want to base the dot density map, and choose the field on which you want to obtain the data values.
6. 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 Customizing a Dot Density Map).

7. Click OK.

A dot density map displays based on either the default settings or whatever customized settings you entered.

Customizing a Dot Density Map

Customize your Dot Density thematic map using the Settings and/or Legend button. To go back to any of the earlier wizard panel to make changes, click Back. You can customize the following on a dot density map:

• Settings
• Map Legend

Customizing the Styles in a Dot Density Map

The Dot Density Styles dialog box enables you to customize the settings for your dot density map. The Settings include how many units each dot represents and the size of the dots. The color of the dots cannot be changed; it is always black.

To access the Dot Density Styles dialog box:

1. Click on a Map window containing the layer you wish to create the theme for.
2. On the MAP tab, in the Content group, click Add Theme to open the Create Thematic Map - Step 1 of 3 wizard panel.
3. Click Dot Density and select from the list.
4. Click Next to open the Create Thematic Map - Step 2 of 3 wizard panel.
5. Choose the table on which you want to base the dot density map, and choose the field on which you want to obtain the data values.
6. Click Next to open the Create Thematic Map - Step 3 of 3 wizard panel.
7. Click Settings to open the Customize Dot Density Settings dialog box.
8. Choose the items you want to customize and make the desired changes.
9. Click OK.

Customizing the Legend of a Dot Density Map

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).