Question

我正试图写一本只归还一个村民、城镇或城市的文字。我正在使用以下YQL询问,但console的结果太具体,给我留下了第一。

select * from flickr.places where lat=51.558418 and lon=-1.781985 and api_key=YOU_FLICKR_API_KEY

这里是我对青少年的询问结果。

<?xml version="1.0" encoding="UTF-8"?>
<query xmlns:yahoo="http://www.yahooapis.com/v1/base.rng"
    yahoo:count="1" yahoo:created="2011-10-25T09:35:50Z" yahoo:lang="en-US">
    <diagnostics>
        <publiclyCallable>true</publiclyCallable>
        <url execution-start-time="1" execution-stop-time="123" execution-time="122"><![CDATA[http://api.flickr.com/services/rest/?method=flickr.places.findByLatLon&lat=51.558418&lon=-1.781985]]></url>
        <user-time>124</user-time>
        <service-time>122</service-time>
        <build-version>22535</build-version>
    </diagnostics> 
    <results>
        <places accuracy="16" latitude="51.558418" longitude="-1.781985" total="1">
            <place latitude="51.547" longitude="-1.802"
                name="West Leaze, Swindon, England, GB, United Kingdom"
                place_id="sddCvK9SW703gg" place_type="neighbourhood"
                place_type_id="22"
                place_url="/United+Kingdom/England/Swindon/West+Leaze"
                timezone="Europe/London" woeid="39722"/>
        </places>
    </results>
</query>

我想能够改变问题中的类型。我知道,我可以利用reg来孤立无援,但我不敢肯定,这是否会为所有地点工作,因此我更愿意让大会党仅仅恢复我所期望的结果。

Answer 1

缩略语

http://www.un.org/Depts/DGACM/index_french.htm

位置信息的准确性。世界一级为1,国家为3,地区为6,城市为11,街为16。目前范围为1-16。缺省是16个。

见flickr.places.FindByLatLon。

Putting that to use is as simple as providing accuracy =n in your where clause. A value of around 10 looks to be about the accuracy that you are looking for, but experiment to see what is best.

select * from flickr.places where 
lat=51.558418 and lon=-1.781985 and api_key=API_KEY_HERE
and accuracy=10

<>Aside

YQL表格所使用的数据来源/服务的文件一般可以通过查阅表格说明获得。

desc flickr.places

这提供了大量信息,通常包括与文件页至少一个链接。见meta section for the documentationURL items。

“desc

友情链接