Class: BaiduGeocoder::Geocoder

Inherits:
Object
  • Object
show all
Defined in:
lib/baidu_geocoder.rb

Constant Summary collapse

ApiHost = 
"http://api.map.baidu.com"
ApiAction = 
"/geocoder/v2/"
ApiUrl = 
ApiHost + ApiAction
DefaultAK = 
"LDw1AMLeanI9hEMjKG4DCzczYVaxAYFC"
DefaultLocation = 
{:lng => 116.421885, :lat => 39.938574, :status => false}.freeze
DefaultAddress = 
{:province => "北京市", :city => "市辖区", :district => "东城区", :formatted_address => "北京市市辖区东城区", :status => false}.freeze

Class Method Summary collapse

Class Method Details

.get_address_by_loc(lat, lng, ak = DefaultAK, http = HTTP) ⇒ Object

get address by location(latitude, longtitude)



42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
 
# File 'lib/baidu_geocoder.rb', line 42

def get_address_by_loc(lat, lng, ak = DefaultAK, http = HTTP)
  params = {:location => "#{lat},#{lng}"}.merge({:output => "json", :ak => ak})
  address = {}.merge(DefaultAddress)
  begin
    res = http.get(ApiUrl, :params => params).flush

    if res.code == 200
      json = JSON.parse(res.body)
      if "0".eql?(json["status"].to_s) && json["result"] && !json["result"].empty? \
        && json["result"]["addressComponent"] && !json["result"]["addressComponent"].empty? \
        && json["result"]["formatted_address"] && !json["result"]["formatted_address"].empty?
        address[:formatted_address] = json["result"]["formatted_address"]
        address[:province] = json["result"]["addressComponent"]["province"]
        address[:city] = json["result"]["addressComponent"]["city"]
        address[:district] = json["result"]["addressComponent"]["district"]
        address[:status] = true
      end
    end
  rescue Exception => e
    puts "Exception => #{e}"
  end

  address
end

.get_address_by_name(name, ak = DefaultAK) ⇒ Object 



67
68
69
70
71
72
 
# File 'lib/baidu_geocoder.rb', line 67

def get_address_by_name name, ak = DefaultAK
  loc = get_location_by_addr(name, ak)
  address = get_address_by_loc(loc[:lat], loc[:lng], ak)
  address[:status] = loc[:status] && address[:status]
  address
end

.get_location_by_addr(addr, city = nil, ak = DefaultAK, http = HTTP) ⇒ Object

get location by address



16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
 
# File 'lib/baidu_geocoder.rb', line 16

def get_location_by_addr(addr,city = nil, ak = DefaultAK, http = HTTP)
  names = {'宁夏' => '宁夏回族自治区', '新疆'=> '新疆维吾尔自治区', '西藏'=>  '西藏自治区', 
    '广西'=> '广西壮族自治区', '内蒙'=> '内蒙古自治区'}
  names.each do |k,v|
    addr.gsub!(/#{k}/, v)
  end
  params = {:address => addr, :city => city}.merge({:output => "json", :ak => ak})
  loc = {}.merge(DefaultLocation)
  begin
    res = http.get(ApiUrl, :params => params).flush
    if res.code == 200
      json = JSON.parse(res.body)
      if "0".eql?(json["status"].to_s) && json["result"] && !json["result"].empty? \
        && json["result"]["location"] && !json["result"]["location"] .empty?
        loc[:lng] = json["result"]["location"]["lng"]
        loc[:lat] = json["result"]["location"]["lat"]
        loc[:status] = true
      end
    end
  rescue Exception => e
    puts "Exception=> #{e}"
  end
  loc
end