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google map

Posted on 2013-06-18
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Last Modified: 2013-09-04
I want to do two things with Google Map

1. I have 15 locations that I want to make into the map. How can I do that?
2. I want allow user to enter zip codes, and once the button is clicked, It will tell the user which location will be closer. like to sort vertically by shortest distance to longest.

I am not programmer and try to find easier way to handle it.
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Question by:solution1368
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Expert Comment

by:Jagadishwor Dulal
ID: 39258524
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Expert Comment

by:Tom Beck
ID: 39262289
Working example:
   <!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
    <meta charset="utf-8">
    <title>Google Maps JavaScript API v3 Example: Geocoding Simple</title>
    <style type="text/css">
      html { height: 100% }
        body { height: 100%; margin: 0; padding: 0 20px }
        #map-canvas { height: 70%; width: 80% }
		#list li { list-style: none }
      </style>
      <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js" type="text/javascript"></script>
    <script src="http://maps.googleapis.com/maps/api/js?sensor=false&v=3&libraries=geometry" type="text/javascript"></script>

    <script>
			var startingPoint = 123;
            var bounds = new google.maps.LatLngBounds();
			var geocoder;		
			
      $(document).ready(function() {            

            var map = new google.maps.Map(document.getElementById('map-canvas'));

            geocoder = new google.maps.Geocoder();
                  geocoder.geocode({'address': 'USA'}, function(results, status) {
                  map.fitBounds(results[0].geometry.viewport);
            });
	  });

            var chunk = 0, inerval;
			
            var locations = [
                  {
                        address: '48 W Seegers Rd, Arlington Heights, IL 60005',
                        company: 'Company B'
                  },
                  {
                        address: '220 N Michigan Ave, Chicago, IL 60601',
                        company: 'Company A'
                  },
                  {
                        address: '1670 Barclay Blvd, Buffalo Grove, IL 60089',
                        company: 'Company C'
                  },
                  {
                        address: '1665 Elk Blvd, Des Plaines, IL 60016',
                        company: 'Company D'
                  },
                  {
                        address: '1800 W Central Rd, Mount Prospect, IL 60056',
                        company: 'Company E'
                  },
                  {
                        address: '3400 Dundee Rd, Northbrook, IL 60062',
                        company: 'Company F'
                  },
                  {
                        address: '3100 Dundee Rd Ste 704, Northbrook, IL 60062',
                        company: 'Company G'
                  },
                  {
                        address: '188 W Randolph St Ste 600, Chicago, IL 60601',
                        company: 'Company H'
                  },
                  {
                        address: '69 W Washington St, Chicago, IL 60602',
                        company: 'Company I'
                  },
                  {
                        address: '269 W Washington St, Chicago, IL 60601',
                        company: 'Company J'
                  }
            ];
			
			function geolocate(){
            	inerval = setInterval(delayCode, 700);
			}
			
            function delayCode() {
				if(startingPoint != 123){
                  var step = 1;
                  if (chunk < locations.length) {
                        for (x = chunk; x < locations.length && x < chunk + step; x++) {
                              codeAddress(locations[x]);
                        }
                        chunk += step;
                  } else{
                        clearInterval(inerval);
                        compareDistances();
                  }
				}
            }

            function setDefaultAddress(address) {
                  var geocoder = new google.maps.Geocoder();
                  geocoder.geocode({'address': address}, function(results, status) {
                        if(status == google.maps.GeocoderStatus.OK) {
                              result = results[0].geometry.location;
                              startingPoint = result;
                              var mapOptions = {
                                    zoom: 15,
                                    center: startingPoint,
                                    mapTypeId: google.maps.MapTypeId.ROADMAP
                              }

                              map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
                              var marker = new google.maps.Marker({
                                    map: map,
                                    icon: "http://www.conceptfire-uk.com/wp-content/uploads/2011/07/icon-pin-color.png",
                                    position: startingPoint
                              });
							  geolocate();
                        }
                        else {
                              alert("Unable to find address: " + status);
                        }
                  });
            }

            function codeAddress(address) {
                  geocoder.geocode({ 'address':address.address }, function(results, status) {
                        if (status == google.maps.GeocoderStatus.OK) {
                        var location = results[0].geometry.location;
                        address.location = location;
                        address.distance = parseFloat(google.maps.geometry.spherical.computeDistanceBetween(startingPoint, location) * 0.000621371192).toFixed(2) ; //convert to miles with two decimal places
                        }
                        else {
                              alert('Geocode was not successful for the following reason: ' + status);
                        }
                  });
            }




            function compareDistances(){
                  locations.sort(function(a,b) {
                        return a.distance - b.distance;
                  });
                  //add the two closest markers
                  var marker1 = new google.maps.Marker({map: map, position: locations[0].location, title: locations[0].company, address: locations[0].address, distance: locations[0].distance});
                  var marker2 = new google.maps.Marker({map: map, position: locations[1].location, title: locations[1].company, address: locations[1].address, distance: locations[1].distance});
				  
				  var infowindow1 = new google.maps.InfoWindow();
			      google.maps.event.addListener(marker1, "click", function () {
                	  infowindow1.setContent('<b>' + this.title + '</b><br />' + this.address + '<br/>Distance: ' + this.distance + ' miles');
                	  infowindow1.open(map, this);
            	  });
				  var infowindow2 = new google.maps.InfoWindow();
				  google.maps.event.addListener(marker2, "click", function () {
                	  infowindow2.setContent('<b>' + this.title + '</b><br />' + this.address + '<br/>Distance: ' + this.distance + ' miles');
                	  infowindow2.open(map, this);
            	  });

                  //extend the bounds of the map to include the two closest markers and the starting point
                  bounds.extend(startingPoint);
                  bounds.extend(locations[0].location);
                  bounds.extend(locations[1].location);

                  //zoom the map to nicely fit the bounds of the two closest markers and the starting point
                  map.fitBounds(bounds);
				  
				  //display all addresses and their distance from the starting point
				  $('#list').html("");
				  $(locations).each(function(index){
					  $('#list').append('<li>' + (index+1) + '.)&nbsp;&nbsp;<b>' + locations[index].company + '</b>, ' + locations[index].address + ', <b>' + locations[index].distance + ' miles</b></li>');
				  });
            }

	 // });
    </script>
    
  </head>
  <body>
  <h3>Map Showing the Two Closest Companies to a the Zip Code Provided</h3>
  	<input type="text" id="zip" /><label for="zip"> Enter Zip Code</label><input type="button" value="Geo Locate" onClick="setDefaultAddress(document.getElementById('zip').value)" />
    <br />
    <br />
    <div id="map-canvas"></div>
    <ul id="list">
    </ul>
  </body>
</html>

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Author Comment

by:solution1368
ID: 39367732
Tommy: I copy/paste your code in html file. It is not working
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LVL 38

Expert Comment

by:Tom Beck
ID: 39368350
Sorry to hear that. Can you provide any additional details, error messages perhaps? Here's what I get when I run the code in Firefox. I typed in the zip code 60601 to get these results.Google Map -- Two closest markers plus a list of distances.
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Author Comment

by:solution1368
ID: 39372179
I use google chrome and once the button is clicked, it just show blank page.
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Accepted Solution

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Tom Beck earned 500 total points
ID: 39372208
I'm getting the same exact results in Chrome v28 (on a Mac) as I'm getting in Firefox so I am unable to reproduce the problem you are experiencing.
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