Using
the mouse and Exploring the map
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Mouse
wheel: Scroll the mouse wheel forward or up to zoom in. Each wheel click will
zoom the map by about 50 percent in height and width
Zoom-in toolbar: Click once on the
map to zoom-in to system defined zoom extent or
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Click and hold-in left button of mouse and drag a
rectangular box in user-defined area of interest

Zoom level button: Click on the plus button on the
zoom level control to zoom in. Click on minus to zoom out.
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Zoom-out toolbar:
Click once to zoom-out to system defined zoom extent or click and hold-in left
button of mouse and drag a rectangular box in user-defined area of interest
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Pan toolbar: Tool to navigate on
the map. Click and hold left mouse button to area of interest. Drag map to
left, to move the map area to west; drag map to right to move the map area to
east; drag map to top to move the map area to north and move down to pan to
south
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Full extent toolbar: By
clicking on this toolbar the whole map area is displayed – the map cover area
displayed when the map is accessed for the first time
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Back extent toolbar: Clicking
on this tool takes the map back to the previous extent. If you zoomed-in twice,
this tool will take to the first extent window
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Forward extent toolbar: After
zooming-in one, clicking on the map, once, or dragging a rectangular box,
results in a further system-defined zoom extent.

Located in the upper left
corner of the map display. Click and hold on the navigation image in the
direction you want to re-center the map. You can click on any spot on the
navigation image to fine-tune the movement.