latitude-longitude

I am calculating center Lat/Lng fron list of available Lat/Lng using C# and rendering on OpenLayer Map. I observed the calculation of getting center lat/lng will give me slightly difference in lat/lng . I am referring this link for the calculation Calculate the center point of multiple latitude/longitude coordinate pairs . C# Code: static void Main(string[] args) { List<GeoCoordinate> listCoordinate = new List<GeoCoordinate>(); listCoordinate.Add(new GeoCoordinate() { Latitude = 22.9833, Longitude = 72.5000 }); //Sarkhej listCoordinate.Add(new GeoCoordinate() { Latitude = 18.9750, Longitude =

F3 c8 42 14 - latitude //05.13637° should be nearby this coordinate 5d a4 40 b2 - longitude //100.47629° should be nearby this coordinate this is the hex data i get from GPS device, how to convert to readable coordinate? i don't have any manual document.please help.thanks 22 00 08 00 c3 80 00 20 00 dc f3 c8 42 14 5d a4 40 b2 74 5d 34 4e 52 30 39 47 30 35 31 36 34 00 00 00 this is my full bytes i received,but the engineer told me that F3 c8 42 14 is latitude and 5d a4 40 b2 is longitude I think the values are in 32-bit floating point. However, the bytes are slightly shifted in the stream that

I've to write a method that has the following signature public class Position { double longitude; double latitude; } boolean isInsideTheArea(Position center, double radius, Position point); So if point is inside the area that has the center as its center and radius as its radius in miles , this should return true , false otherwise. Use the Haversine formula to compute the distance between center and point . If that distance is greater than radius , return false ; otherwise return true . Pseudocode: def haversineDistance(a, b): # snip... return foo def isInsideTheArea (center, radius, point):

Closed. This question is off-topic. It is not currently accepting answers. Learn more . Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . I would like to get longitude/latitude data for the cities in my dataframe and add as 2 columns in my frame. I'm new to R and I do not know how to do it. Could someone help me on this My frame: > data <- read.xlsx("example_city.xlsx", 1) > data City Country 1 Stockholm Sweden 2 Oslo Norway 3 Rome Italy 4 Rome Italy 5 Stockholm Sweden 6 Stockholm Sweden 7 Paris France 8 Paris France 9 Hamburg Germany

Can you tell me if there is a formula to change a latitude and longitude into a single number? I plan to use this for a database table in software that provides routing for deliveries. The table row would have that number as well as the postal address. The database table would be sorted in ascending numeric order so the software can figure out which address the truck would need to go to first, second etc. Please can you respond showing VB or VB.Net syntax so I can understand how it works? For example I would use the following numbers for the latitude and longitude: Lat = 40.71412890 Long = -73

What would be the best approach to finding the set of coordinates, from say about 5,00, which lie within a path of points, given a specified width. eg an aircraft following several waypoints. Is there a good way to also sort them in the same order as the route. Calculation speed would be more important than accuracy, since I'm looking at producing a list of suggestions. From what I've looked at, I presume it's not straightforward, and the question is a bit broad, but any suggestions/pointers would be welcome, eg for: Best way to store lat / long, or use spherical coordinates Having additional

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