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DeLorme Topo North America 9.0 User Guide
6
Basic Functions
Running DeLorme Topo North America
After you install the program, you can run it with the DVD to use the data without installing
it to your computer's hard drive. For more information on installing data to your hard drive,
see Saving Data to Your Hard Drive
.
To Access Data from the DVD
Choose one of the following ways to access the data using the DVD.
• If you installed a desktop shortcut, insert a DeLorme Topo North America DVD into
your computer's DVD drive and then double-click the DeLorme Topo North
America 9.0 icon.
OR
• Insert a DeLorme Topo North America DVD into your DVD drive. Click Start, point to
Programs > DeLorme > Topo North America 9.0, and then click DeLorme Topo
North America 9.0.
Zooming In and Out
You can use the drag and zoom feature, zoom tools, or the data zoom level (Data zoom
level is the relationship between what you see in a map view and how it exists in reality. It
is the amount of geographic data displayed on a computer monitor. The data zoom level is
similar to the traditional fractional relationship expressed on paper maps. For example,
1:24,000, 1:100,000, 1:500,000, and so on.) to quickly change the zoom level of the map
view.
Notes
• Increase the data zoom level number to show a smaller geographic area at greater
detail.
• Decrease the data zoom level number to show a larger geographic area at lesser
detail.
• If you view both the right (primary) and left (secondary) maps at different data
zoom levels, a box (or lines, depending on the current data zoom level) displays on
the map that is zoomed out the furthest. The box/lines indicate the area that is in
view on the other map.
• If you view the right and left maps at the same data zoom level but they are not
equally represented on the screen (50/50), a box (or lines) displays on the map that
is covering the most screen area. The box/lines indicate the area that is in view on
the other map.
To Drag and Zoom In
Use the following steps to zoom in either the right or left map.
1. Click and hold down the left mouse button as you drag the mouse in a down-right
direction on the map to encompass the area you want to display. A view box displays
on the screen and changes dimension as you move the mouse. A label displays the
data zoom level at the current map center.
2. Once you reach the map area or data zoom level you want to display, release the
mouse button. The area you selected fills the map window, the map re-centers, and