Google Maps -> Making a circular route based on given distance? - google-maps

Trying to avoid reinventing the wheel here.
Anyone knows of any API that lets one create a route that starts and ends at the user's position, given as parameter the distance required for the route?
For example, you want to take a walk. A walk of a total of 5KM from home and back to home. Any API that will work with Google Maps to offer routes?
Thanks, as always.

You can implement this with the use of Google Maps API Directions Service which receives direction requests and returns computed results.
Furthermore, with this API, you can create a route that starts and ends at the user's position by Using Waypoints in Routes .
As mentioned,
Travel time is the primary factor which is optimized, but other factors such as distance, number of turns and many more may be taken into account when deciding which route is the most efficient.
Please note, however, that the use of Directions service must be in accordance with the policies described for the Google Maps Directions API.

Related

Possible to create a map with route planning via multiple preset locations depending on distance?

So, Imagine I have a car planning to travel some distance.
Is it possible to create a map on my web page, putting planned route (from location to location), my consumption of my car and it would tell me where I could fill it up again. But only via my preset location.
Could I use some of the API in google maps to create this?
Something similar to this would be Tesla route planner: https://www.tesla.com/en_CA/trips?redirect=no
You can start off with Maps JavaScript API's Directions Service which calculates directions between locations that also contains the distance and duration for the route.
Also check out the example here: https://developers.google.com/maps/documentation/javascript/examples/directions-simple
Hope this helps!

Can you get an ideal route of multiple destinations using a single API call?

I'm trying to see if there's a way in a single API call to find the ideal route, order not mattering, between X destinations.
For example, the program has 3 destinations, Jeff's house, Amy's house, and Valerie's house. Don't really care the order we go in, but we'd like to visit each house with the least amount of driving.
Right now, I have it set up such that we try every ordering of destinations, and settle on the one with the fastest time. But having so many API calls seems inefficient, but I can't see a way in the API to do what I want. Is what I want presently possible in the google maps API?
You can use Waypoints in Directions API web service which returns a route that includes pass throughs or stopovers at intermediate locations.
By default, the Directions service calculates a route through the
provided waypoints in their given order. Optionally, you may pass
optimize:true as the first argument within the waypoints parameter to
allow the Directions service to optimize the provided route by
rearranging the waypoints in a more efficient order.
Sample request:
https://maps.googleapis.com/maps/api/directions/json?
origin=Adelaide,SA&destination=Adelaide,SA
&waypoints=optimize:true|Barossa+Valley,SA|Clare,SA|Connawarra,SA|McLaren+Vale,SA
&key=YOUR_API_KEY
Note that requests using waypoint optimization are billed at a higher rate.
If you will be using client-side Maps JavaScript Directions Service. Refer to this documentation and example.
Hope this helps!

Look up walking time (calculated by Google maps) between two addresses (in a Google spreadsheet)

I have a Google spreadsheet with one column of physical addresses, and I want to have a second column be the time in minutes to walk between the address in column 1 and a second address (as determined by Google Maps). Any recommendations on how to accomplish this task?
From my understanding of the Google Maps terms of service, they:
don't like people using their service as a "batch geocoder". This means that
you will need to throttle your requests (place delays between each successive request, to avoid the OVER_QUERY_LIMIT error)
it is against the terms of service to use the geocoder (and maybe the distance service) without displaying a map graphic
If you still want to proceed,
you need some way of extracting the address from your spreadsheet. I think there's a Google docs API that will help you do that. I also found some custom Javascript code that does that for you easily. I don't have a link anymore :(
once you have the addresses readable from the Google Maps Javascript API, you can call the distance or directions API to get the walking distance
then you need to save that back to the spreadsheet.
It sounds like a possible application for the Distance Matrix Service.
But you can only use it if you will be displaying a map
Use of the Distance Matrix API must relate to the display of
information on a Google Map; for example, to determine
origin-destination pairs that fall within a specific driving time from
one another, before requesting and displaying those destinations on a
map. Use of the service in an application that doesn't display a
Google map is prohibited.

Google Maps API - Getting Street Coordinates

Google Maps API has any way to get the street coordinates of an location?
Is simple: I just want to get the nearest street coordinate. To got this i need, for example, all coordinates that compose a street.
Are there something like this?
You may use the directionService.
Pass the given address(or location) as origin and destination to directionsService.route() and use the travelMode DRIVING . The response should contain the nearest street.
Demo: http://jsfiddle.net/doktormolle/W3VGN/
I found this (ReverseGeocoding in v3): https://developers.google.com/maps/documentation/javascript/geocoding#ReverseGeocoding
Since this thread is old I suppose this could be useful.
These answers are all old, and Google has rearranged the maps API significantly since the answers.
In 2018, the best way to turn a location (long, lat) into a "point on road," is to use the snap-to-road or nearest-road service:
https://developers.google.com/maps/documentation/roads/snap
Note that this API charges a cent per API call, and can take up to 100 distinct points per call. If latency and complexity aren't problems, if you need to answer this question on a client, you could build a server that collects up to 100 requests from different clients, makes one request to Google, and then returns the request data back to the appropriate clients. (For this use, make sure to use nearest-road, not snap-to-road.)
Also, currently, Google Maps has a $200 per-month statement credit available, which may make smaller uses of this API not actually end up costing much (or anything at all.)

Get type of terrain by coordinate

I'm looking for a solution to be able determine landscape type by a given coordinate, for example check if current position is water/forest/town/road and so on. I found google.maps.MapTypeStyleElementType object specification in the Google Maps specification, but not sure if it could help me or not.
Probably, there are some another Maps API with such functioality? Or maybe I should refer to the different types of offline maps?
Nope, the link you send is just for styling the proper features, not to tell which feature is at a given coordinate. If you are interested in landscape, then Corine Land Cover is the thing you are looking for. It describes the types of biotops like forest, water, but also land use - meadow, field, buildings etc. However, I don't know if there is such an online service where you could query particular coordinates. Other solution for you would be to import these GIS layers (they are freely available) to your own gis map server. Maybe this is partially solved as there are e.g. projects how to incorporate these into openstreetmap.
Well not quite, but you could get close to what you're looking for by using the Google Reverse Geocoder and the Google Places API
Google Reverse Geocoding
http://code.google.com/apis/maps/documentation/geocoding/#ReverseGeocoding
If you send the service a geocode it will send back an address type and/or one of several adress components http://code.google.com/apis/maps/documentation/geocoding/#Types
Google Places API
http://code.google.com/apis/maps/documentation/places/
You could use the Google places API to search for for what's near. If the geocode is in the middle of the lake, the Places API may return something like "Lake Michigan" and then you'd know the terrain obviously.