geocode | 易学教程

How to serialize and deserialize a JSON object from Google geocode using Java

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问题 I am working with Google Geocode responses, which are in JSON. The JSON format is as follows: { "status": "OK", "results": [ { "types": [ "street_address" ], "formatted_address": "1600 Amphitheatre Pkwy, Mountain View, CA 94043, USA", "address_components": [ { "long_name": "1600", "short_name": "1600", "types": [ "street_number" ] }, { "long_name": "Amphitheatre Pkwy", "short_name": "Amphitheatre Pkwy", "types": [ "route" ] }, { "long_name": "Mountain View", "short_name": "Mountain View",

Convert latitude and longitude coordinates to country name in R

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I have a list of latitude and longitude coordinates, and wish to find out which country they all reside in. I modified an answer from this question about lat-long to US states , and have a working function, but I run into the problem that the worldHires map (from the mapdata package) is hideously out of date and contains a lot of obsolete countries such as Yugoslavia and the USSR. How would I modify this function to use a more modern package, such as rworldmap ? I have only managed to frustrate myself so far... library(sp) library(maps) library(rgeos) library(maptools) # The single argument to

Android Geocoder quota limits

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Could someone advise on the quota limits to Google maps geocoding api? I'm using geocoding on android. The Google maps Api site states the limit is 2,500 per day. Is this total for the API key? or per IP address? I have found this article: http://code.google.com/apis/maps/articles/geocodestrat.html#quota-limits which states that the quota limit is tied to the ip address, however this is referring to websites. Can anyone answer this? Obviously this is a huge difference and 2,500 geocode lookups per day per device would be enough for most applications. Apollo SOFTWARE From what I understand it's

Geocoder doesn't always return a value

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问题 I am able to successfully get lat/long and pass it to the geocoder to get an Address. However, I don't always get an address back. Seems like it takes a couple of attempts? I'm not sure why. Is there a better way for me to obtain the address at this point? public List<Address> getAddresses(){ Geocoder geocoder = new Geocoder(getApplicationContext(), Locale.getDefault()); List<Address> addresses = new ArrayList(); try { addresses = geocoder.getFromLocation(latitude, longitude, 1); } catch

Increase the api limit in ggmap's geocode function (in R)

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问题 I'm trying to use the geocode function from the ggmaps library in R to get coordinates for specific locations. I'm able to use the function fine so far. The issue I'm running into is that I would like to increase my daily limit from 2,500 to 100,000 . The official Google documentation says that this is readily possible if you enable billing on the project, which I'm happy to do. When you proceed with this process, the Google Developers Console gives you a personalized API key. However, the

Getting OVER QUERY LIMIT after one request with geocode

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I'm using the ggmap's geocode to find the latitude and longitude of different cities. It worked completely fine yesterday but I get an OVER QUERY LIMIT after only one request today. In fact if I just load the library and run geocode it throws the OVER QUERY LIMIT error: > library(ggmap) > geocode("Paris") Information from URL : http://maps.googleapis.com/maps/api/geocode/json?address=Paris&sensor=false lon lat 1 NA NA Warning message: geocode failed with status OVER_QUERY_LIMIT, location = "Paris" I checked different topics on stackoverflow but nobody seems to have the same problem. I tried to

Calculate distance of two geo points in km c#

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问题 I`d like calculate the distance of two geo points. the points are given in longitude and latitude. the coordinates are: point 1: 36.578581, -118.291994 point 2: 36.23998, -116.83171 here a website to compare the results: http://www.movable-type.co.uk/scripts/latlong.html here the code I used from this link: Calculate distance between two points in google maps V3 const double PIx = Math.PI; const double RADIO = 6378.16; /// <summary> /// Convert degrees to Radians /// </summary> /// <param

Geocoder, how to test locally when ip is 127.0.0.1?

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问题 I can't get geocoder to work correct as my local ip address is 127.0.0.1 so it can't located where I am correctly. The request.location.ip shows "127.0.0.1" How can I use a different ip address (my internet connection ip) so it will bring break more relevant data? 回答1: A nice clean way to do it is using MiddleWare. Add this class to your lib directory: # lib/spoof_ip.rb class SpoofIp def initialize(app, ip) @app = app @ip = ip end def call(env) env['HTTP_X_FORWARDED_FOR'] = nil env['REMOTE

Android Geocoder quota limits

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问题 Could someone advise on the quota limits to Google maps geocoding api? I'm using geocoding on android. The Google maps Api site states the limit is 2,500 per day. Is this total for the API key? or per IP address? I have found this article: http://code.google.com/apis/maps/articles/geocodestrat.html#quota-limits which states that the quota limit is tied to the ip address, however this is referring to websites. Can anyone answer this? Obviously this is a huge difference and 2,500 geocode

Android Geocoder quota limits

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