GPS for Dummies.pdf - Engineering Surveyor

294Part IV: Using Web-hosted Mapping ServicesYou can also just enter a city and state or a ZIP code to display anoverview map of an area. To display a driving route between two points, either in the form of amap or turn-by-turn directions, you click a directions button or link, andthen enter the address, city, state (or country), and optional ZIP (orpostal) code for the starting point and destination. As an example, theMapQuest driving directions search page is shown in Figure 18-2.After a map is displayed, you can zoom in and out to show more detail ora larger area, respectively. Most maps feature a zoom scale with a series ofboxes with a plus and minus sign at each end. Clicking a box nearer to theplus sign zooms in, and clicking a box closer to the minus sign zooms out.You can move around the map by clicking arrows or compass points thatborder the map; the map scrolls in the direction of the arrow or compass point.All map Web sites provide an online help link. Even if you’ve used a streetmap Web site for a while, it’s worth your time to read the help information.There’s a good chance that you’ll discover something new that might saveyou some time.Take a quick look at some street map Web sites.Figure 18-2:MapQuestdrivingdirectionssearchpage.