Is anyone familiar with Twitter API??

[cckh ()]

Hi, I have a question about Twitter API.

In Twitter Search API if you use
http://search.twitter.com/search.json?....&geocode=.....
it gives you tweets near the location you specified.
This is no problem.
My question is:
In those tweets returned from this search,
some of them (in fact most of them) does not contain any location information
nor geocodable information.

If this is the case, how does Twitter server decides these tweets are
near the specified location??

Or is it because those tweets DO contain location -related information,
but Twitter Search API DO NOT return them for some reason?

Thank you very much.

--
※ 發信站: 批踢踢實業坊(ptt.cc) 
◆ From: 143.215.18.78
→ ducksteven:https://dev.twitter.com/docs/api/1/get/search
→ ducksteven:according to the doc, if a tweet doesn't have
→ ducksteven:geocode, it will fallback to user's location.
→ cckh:thank you, but do you know what would happen if user
→ cckh:location is null too? meaning this tweet is not
→ cckh:locatable? If so, how is it returned by Search API??