latitude-longitude

I would like to execute an FQL query for retrieving all the public events in a specific area (using longitude,latitude and maximum distance or simply location name). Do you know if it's possible? Apparently, somebody is able to do it, somehow: http://elmcity.info/fb_events?location=tokyo It is possible indeed to receive events using location based "search" To do so you'll need the longitude and latitude coordinates of the location you want to search and a access_token with user_events permission (i think you could also use the public search) Here's an FQL example how can you get all the events

'lo all. I am a self-described admitted noob in iPhone programming (having a much longer perl & web background -- 30 years)...but took the plunge last week and bought a couple of good books. After cramming and reading well over 1000 pages -- and understanding it pretty well, I am well on my way to a good first Native iPhone app. My problem is this: I do not know how to do a simple Geographic (lat/long) point-in-polygon routine in Objective-C. I have 2 ways of doing this. One in C (the first code example) and one in JavaScript (the second code example): // this is the poly.h file int pnpoly(int

I have two data arrays that are on lat-lon grids. The first one, A, has the shape (89, 180). The second one, B, has the shape (94, 192). A's latitudes are in descending order from 88. to -88. & longitudes are in ascending order from 0. to 358. B's latitudes are in descending order from 88.54199982 to -88.54199982 & longitudes are in ascending order from 0. to 358.125. I want to regrid/interpolate B's data onto A's coordinate system so that I can get both arrays the same size and calculate the spatial correlation between them. (I can also regrid/interpolate A's data onto B's coordinate system

The documentation says that if pyEpehm is given a TLE and a time it will return the following. However, I'm having no luck converting the returned 'sublat' and 'sublon' to ECEF XYZ and back to LLA coordinates to verify. When I convert back the longitude is preserved but the latitude is off by about ~20 degrees for different tests. I am using functions that are verified with GPS ephemeris and I am very confident that the LLA to ECEF and back works for those parameters. Something else is going on here. Does anybody know if 'sublat' and 'sublon' are given in geocentric?? On artificial satellites,

i get lat and long in this format Latitude23.132679999999997, Longitude72.20081833333333 but i want to in this format Latitude = 23.132680 and Longitude 72.200818 how can i convert Shakti Malik double Latitude = 23.132679999999997; int precision = Math.pow(10, 6); double new_Latitude = double((int)(precision * Latitude))/precision; This will give you only 6 digits after decimal point. double d=23.132679999999997; DecimalFormat dFormat = new DecimalFormat("#.######"); d= Double.valueOf(dFormat .format(d)); Once I solved my problem like this - String.format("%.6f", latitude); Return value is