geography

(ANSWER) How to export some Geography data from a Microsoft Sql Server 2008. You'll need to use the command line argument BCP to dump the data in it's original (native) format to a binary file. Then on the other server you can bulk insert this binary data back into a table of the same strucutre. here's some code. Export Command Line: bcp "geodata.dbo.GeographyData" out "C:\GeoData.bin" -T -n -S <servername> Notes This uses a Trusted connection use the bcp /? for more help for your export options if u need to be hardcore. Importing the data T-SQL: bulk insert GeographyData from 'C:\GeoData.bin'

I'm working with a geographic point using lat/long and need to find other points in our database within a 5 mile radius of that point. However, I can't seem to find out what the "units" are for STBuffer, it doesn't seem to conform to feet, miles, meters, kilometers, etc. The documentation only refers to them as "units", any suggestions? Thanks [...] from geography::STGeomFromText('POINT(x y)', 4326).STBuffer(z).STIntersects(geography::STGeomFromText('POINT(' + CAST(v.Longitude as varchar(max)) + ' ' + CAST(v.Latitude as varchar(max)) + ')', 4326)) = 1 STBuffer is in meters. More info here. To

Environment: SQL Server 2012 I'm using an online tool, the only one I could find so far, to plot polygons and points on the earth. http://www.birdtheme.org/useful/googletool.html I have two tables. One stores "areas" as polygons and the other table stores points amongst other things irrelevant to my question. For simplicity, I'll just reduce my scenario to sql variables. In the query below, I'm using the geography data type for well known points of interest. I drew a polygon around Robben Island, a point in Robben Island and a point in Alcatraz. DECLARE @robben_island geography = ('POLYGON((18

Is there a way to know in SQL Server 2008R2 if a point is at the south,east,etc...of another point? For example, I have an origin point(lat1,lng1) and I want to know where point(lat2,lng2) is located from that origin: north, west,etc... I'm trying to construct a wind rose graph and this might be useful to me. In order to calculate the bearing between two coordinates while using the Geography type in SQL Server 2008 R2, you can use this function: CREATE FUNCTION [dbo].[CalculateBearing] ( @pointA as geography ,@pointB as geography ) RETURNS decimal(18,12) AS BEGIN -- Declare the return variable

i have the following two tables:- GeoShapes GeoShapeId INT IDENTITY Name VARCHAR(100) ShapeFile GEOGRAPHY [ this is a closed Polygon of Lat/Longs ] CrimeLocations CrimeLocationId INT IDENTITY LatLong GEOGRAPHY [ this is a Lat/Long Point ] Now, i have around 10K GeoShape results and around 500CrimeLocations. I'm trying to figure out which GeoShapes all 500 crime lat/long points exist inside of. :( I just don't get it! I was trying to do an STIntersects on a subquery but that didn't work. Any suggestions? cheers! EDIT 1: I cannot use any GEOMETRY functions .. because (as stated above) these are

How do you draw the curve representing the shortest distance between 2 points on a flat map of the Earth? Of course, the line would not be a straight line because the Earth is curved. (For example, the shortest distance between 2 airports is curved.) EDIT: THanks for all the answers guys - sorry I was slow to choose solution :/ Paul Tomblin I get this sort of information from the Aviation Formulary . In this case: Distance between points The great circle distance d between two points with coordinates {lat1,lon1} and {lat2,lon2} is given by: d=acos(sin(lat1)*sin(lat2)+cos(lat1)*cos(lat2)*cos

How do I define a postgis 'geography' type in my C# class model so that OrmLite can easily pass it through to Postgresql so I can run spatial queries in addition to saving spatial data to the 'geography' column? The best library is NetTopologySuite for this case; you can use like this; protected GisSharpBlog.NetTopologySuite.Geometries.Geometry _geom; public GisSharpBlog.NetTopologySuite.Geometries.Geometry Geom { get { return _geom; } set { _geom = value; } } protected string _geomwkt; public virtual string GeomWKT { get { if (this.Geom != null) return this.Geom.ToText(); else return ""; }