Google maps query parameter clarification

I am implementing a feature in the website where I take the location of the users via 5 input boxes and then need to show location in the google maps, I know this process is called geocoding but again after doing some search I came across this link, http://www.seomoz.org/ugc/everything-you-never-wanted-to-know-about-google-maps-parameters This link tells that we can pass location as query string parameters to google map's url. Is this process valid and is their any restriction on its usage this way

2 Answers 2

The place I have always gone for Google Maps query parameters was this mapki page. Creating a URL for google maps is directing your user to google's website, and is subject to the terms of use for google maps.

See the link in the original question, the mapki link is dead.

content from Google Map Parameters (note this referred to the original http://maps.google.com, not to the "new" google maps, looks like it might have been originally authored by Mike Williams):

• q= Query - anything passed in the q parameter is treated as if it had been typed into the query box on the maps.google.com page. In particular:

• ll= Latitude,longitude of map centre - Note the order. Only decimal format is accepted. If this is used without a query, then the map is centred at the point but no marker or info window is displayed
• sll= Latitude,longitude of the point from which the business search should be performed. You could use this to perform an off-centre busness search. Google use it so "link to this page" can record a map that has had the centre moved after performing a business search.
• spn= Approximate lat/long span. The zoom level will be adjusted to fit if there's no &z parameter. Use this Mapki tool to find a lat and long.
• sspn= ?? lat/long of. what?
• hl= Host language - only a few languages are supported, e.g. &hl=fr for French.
• t= Map Type. The available options are "m" map, "k" satellite, "h" hybrid
• saddr= Source address. Use this when asking for driving directions any text added in brackets is displayed in the sidebar in bold
• daddr= Destination address(es). Use this when asking for driving directions any text added in brackets is displayed in the sidebar in bold "+to:" clauses can be appended to the destination to request multiple destination routing, like this "&dadr=Blackpool+to:Manchester+to:Leeds" text in brackets can also be added to the "+to:" clauses.
• mrad= Additional destination address. If you've got three points in your trip you can use &saddr, &daddr and &mrad instead of "+to:" clauses.
• start= Skips the first (start-1) matches
• num= Display, at most, this number of matches. The valid range is 0 to 10 (but 0 is a bit pointless).
• near= Can be used as the location part of a query instead of putting the whole thing into &q.
• f= Controls the style of query form to be displayed. &f=d displays the "directions" form (two input boxes: from, to), &f=l displays the "local" form (two input boxes: what, where). Otherwise the default search form is displayed (single input).
• output=html Uses the old style Google Local page format from before it merged with Google Maps, with the small map and large sidebar.
• output=js Outputs JavaScript object literals and function calls used by Google Maps, including encoded polyline data for driving directions, and stage information in HTML format.
• output=kml Outputs a KML file containing full Placemark information representing the current map.
• output=nl Outputs a small KML file containing a NetworkLink wrapper linking to a URL from which Google Earth and Google Maps can obtain the Placemark information.
• latlng= This is a weird one. It takes three numbers separated by commas. The first two numbers (presumably representing latitude and longitude multiplied by 1000000) are ignored. The third number seems to be a Google internal "Company ID" number for a particular business. E.g. &latlng=0,0,14944637421527611642 represents Blackpool Community Church. Specifying this parameter performs a Google Search for pages that reference that business, and displays a tiny map. Other parameters, in particular &q, must have valid contents (but need not relate to the target business) for this to work.
• cid= Similar to latlng, but generating a different map size. It takes three numbers separated by commas. The first two numbers (presumably representing latitude and longitude multiplied by 1000000) are ignored. The third number seems to be a Google internal "Company ID" number for a particular business. E.g. &cid=0,0,14944637421527611642 represents Blackpool Community Church. Specifying this parameter displays a large map of the identified company location. Other parameters, in particular &q, must have valid contents (but need not relate to the target business) for this to work.
• vp= The presence of this parameter causes maps.google.com to switch into Copyright Service mode. Instead of returning the html that draws a map, it returns information about the copyright ownership in Javascript format. The &vp parameter specifies the viewpoint (i.e. the centre of the map). Copyright Service only works when the &spn and &z parameters are also supplied, indicating the span and the zoom. Optional parameters are &t, which specifies the map type, and &key which specifies the API key of the site performing the request. E.g. http://maps.google.com/maps?spn=0.030372,0.068665&z=6&t=h&vp=53.859462,-3.038235
• om= The presence of this parameter with a value other than 1 causes the overview map to be closed. If the parameter is omitted, or present with the value 1, then the overview map is open.
• ie= Can be used to specify the character set. e.g. &ie=UTF8.
• pw= Activates print mode and initiates printing. There seems to be a problem at the moment with &pw=1, but using settings like &pw=2 is OK.
• z= Sets the zoom level.
• iwloc= Specifies where the infowindow will be displayed. In a business search &iwloc=A to &iwloc=J will open the info window over the corresponding business marker, and &iwloc=near will place it over the big green arrow if that's currently displayed. &iwloc=addr can be used on map search to explicitly request the info window to be open on the address, but that's the default anyway. Directions search supports &iwloc=start, &iwloc=end and &iwloc=pause1 etc.
• layer=t Activates the traffic overlay
• msa=b Activates the "My Maps" sidebar when used in conjunction with "maps.google.com/ms". It does nothing without the "/ms" and "/ms" does nothing without the "&msa=b".
• msa=0 Involved in My Maps processing. Possibly specifies the My Maps server number.
• msid= Specifies a My Maps identifier. When used in conjunction with "maps.google.com/ms" and &msa=0, the corresponding My Map is displayed.
• mrt=kmlkmz Skips the normal search and goes directly to User-Created Content. Only works if the query contains a location and something to search for. E.g. q=hotel&near=london&mrt=kmlkmz or q=hotel+in+london&mrt=kmlkmz.
• view= Can be used to select text view (view=text) or the normal map view (view=map)
• dirflg=h Switches on "Avoid Highways" route finding mode. Retrieved from "http://mapki.com/wiki/Google_Map_Parameters"