Finding log of a particular user ,SVN

Filed under Other by Irfan Raza on February 23, 2010 at 8:30 am {one comment}

Here is a example of finding log or chnages done by a user on a directory or file in SVN Repository:

To get log of current directory:-
svn log | sed -n '/username/,/-----$/ p'
To get log of a particular file:-
svn log filename.txt | sed -n '/username/,/-----$/ p'

Search around a particular Latitude and longitude by a given radius

Filed under Other by Irfan Raza on February 23, 2010 at 8:22 am {one comment}
This post is related to search around a particular latitude and longitude for a given radius in Km or Miles.
  • One degree of latitude is equal to about 69 or 70 miles or 111 Km.
  • Suppose you have to search in a circle of 4 miles ,the center of the the circle is lat,long you have.
  • Since 70 miles is equal to 1 degree lat then the latitude radius will be “4/70=0.057″ .
  • now suppose the center point lat, long is:latitude=26.262011,longitude=81.546562 then the range will be in which you have to search will be
  • minLat=26.262011- 0.057
  • maxLat=26.262011+ 0.057
  • minLong=81.546562 – 0.057
  • maxLong=81.546562 + 0.057
  • Now you can run a sql query to database with between statement like:- where latitude between “this” and “this” and longitude between “this” and “this” .
  • It will give you all the location’s lat ,long that are in that 4 miles circle around given lat long center point.
  • Some Resources for Understanding latitude and Longitude:
  • http://www.infoplease.com/homework/latlongfaq.html
  • http://www.infoplease.com/ipa/A0908193.html
  • http://www.hammondmap.com/catalog/classroom_activities/latlong1.html