Chapter 4. Exploring Data

4.1. Zooming In and Out of Maps
4.2. Selecting Data and Using the Identify Tool
4.3. Using the Pan Tool to Move a Map
4.4. Data Tooltips
Specifying Data Tooltip information
4.5. Measuring Distance and Area
4.6. Using the Data View
Sorting the Data View
Re-ordering columns in the Data View
Editing data in the Data View
Locating the selected data on the map
Re-ordering columns in the Data View
4.7. Adding, Removing, and Renaming Columns
Adding Columns to a Layer
Removing Columns from a Layer
Renaming Columns in a Layer
4.8. Using the Selection Window
4.9. Using the Point Data Window
4.10. Additional Layer Info

Cartographica is first and foremost a tool for exploration of data. This chapter describes many of the tools available for visualizing the data that you have. In concert with the analysis and presentation features, these tools provide a robust starting point for understanding the information within your data.

4.1. Zooming In and Out of Maps

There are several ways to zoom in and out of a map:

  • Use the scroll wheel on the mouse while holding down the Option key on the keyboard

  • Use the Zoom Dial on the right side of the Map Windows

  • Use the Zoom To menu items in View to jump to particular zoom levels

  • Use the zoom tool to zoom to points or areas using the mouse pointer

  • Use the Previous and Next Extent items in View move to the previous or next zoom locations

Zoom Dial

Figure 4.1. Zoom Dial

Click and hold the zoom dial and move it up to zoom in and down to zoom out.

You can also zoom by clicking your mouse when you are using the Zoom tool. The Zoom tool also has a toolbar icon looks like this:

When the Zoom tool is selected, the cursor becomes a small little magnifying glass. Click anywhere in the map to zoom in and center the map on that point. To zoom back out, click while holding the Option key on your keyboard.

You can also zoom by selecting an area with the mouse (like drawing a box around it) when you have the Zoom Tool toolbar icon selected. You will zoom in to the borders of the box you just drew.

To go to the last Zoom use the Previous Extent/Next Extent menu options available in the View menu. Essentially, these options are undo/redo for zooming.