1
vote
1answer
110 views

Calculation to convert db data to Lat/Lng degrees

In a database I have the following Lat/Lng data. I wish to convert it to a readable format. 177514245:34726053 => S 32 7.3947, E 115 51.4245 177513828:34726948 => S 32 7.3052, E 115 51.3828 ...
4
votes
1answer
235 views

Spatial index vs two coordinates indexes

I have a table with two columns: latitude and longitude. I want to get all objects inside a "rectangular" (well, rectangular in a lat/lon coordinate metric) bounding box: min-max latitude and min-max ...
2
votes
3answers
520 views

Looking for map calibration software and city database

I'm in need of a mapping software which, given a map, lets you calibrate it (choose which geographic coordinates project to which pixels on the map image) and then given a database of cities, you can ...