I\'m not sure where/how I specify this SQL Spatial Index hint on my query :- SELECT Whatever FROM Table1 a
I\'m new to PostgreSQL. For the default install of PostgreSQL (no extension like PostGIS), if t开发者_运维技巧here\'s geographic fields defined in my table, then what kinds of index does PostgreSQL
I read an article that says: The (x-min,y-min) and (x-max,y-max) coordinates determine the placement and dimensions of the bounding box.
I\'m working on moving some spatial searching capabilities from Postgres with PostGIS to SQL Server and I\'m seeing some pretty terrible performance, even with indexes.
I am working on Grails 1.3.2 with MySql. I need to store the latitude and longitude of certain locations in the database and then on the basis of the user\'s current location, I need to return the ite
does anyone have any experiences using the lucene\'s spatial search component (lucene 3.0)? I tried a very simple example but could not get the search to return anything, see below for all the codes
2D spatial indexing question: What do you call a data structure that is essentially an infinite* quadtree whose nodes contain neither absolute coordinates nor absolute scales -- in which the coordina
I found some open source R-Tree implementations in开发者_StackOverflow C#, but none with documentation nor signs of being used by someone else than the developer.The NetTopologySuite is a JTS port to
We have a list of x,y pairs. Every pair represents a point on a 2D space. I want to find the closest point from this list, to a specific point xq,yq. What is the best performance-critical algorithm fo