latitude-longitude

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How to find the nearest nighboring point coordinates in 2d grid using python

I try to find the nearest point in geoida database for every point stored in second database. Here\'s may approach, which is extremely slow. geoida.db stores +55000 coordinates[详细]

2023-04-13 03:36 分类：问答
How to calculate distance from lat/long in php?

What I am trying to do is I have entries in the database which have a lat/long stored with them. I want to calculate the distance between users lat/long and entries lat/long (in DB). After that, I wan[详细]

2023-04-11 07:43 分类：问答
How to find a geographic point between two other points

For my application I have to find the position of a point on Google map knowing only that it\'s located between 2 other points and the time (in ms) when the coordinates have been caught.[详细]

2023-04-11 00:15 分类：问答
Javascript Canvas Lat Lng Plotting

I want to create a data visualization similar to this: ...but开发者_如何学JAVA for the entire globe. The canvas size will be arbitrary but won\'t need to resize with the browser (I will set the wid[详细]

2023-04-10 20:13 分类：问答
Calculate distance between user's location and a fixed location

I am receiving multiple restaurants\' latitude/longitude from a server. I want to calculate the d开发者_StackOverflow中文版istance between each restaurant and the user\'s current latitude/longitude.Yo[详细]

2023-04-10 14:40 分类：问答
Comparing Latitude and Longitude

In my iPad application 开发者_如何学Pythoni am drawing one rectangle on map using overlay. I have lat/long of one edge as well as length and width of rectangle.[详细]

2023-04-09 03:16 分类：问答
Updating the centre point & zoom of MKMapView (iPhone)

I have been trying to centre the map view on the users location. This should also update as and when a change in locat开发者_如何学编程ion is registered. The issue I\'m having is upon loading the app[详细]

2023-04-08 00:38 分类：问答
Find latitude and longitude

Can any one help me in getting the latitude and longitude value of the place? The p开发者_开发技巧lace details must be gotten from the user as a input. The place detail can be ZIP code, city name, add[详细]

2023-04-07 23:52 分类：问答
Android: how to transform lat & lon in a given angle?

I have lat & lon that need to plot into floor map image. The problem is the floor map image\'s angle is not proportionate with the real world map. Anybody knows how to transform real lat & lon[详细]

2023-04-07 18:54 分类：问答
How to implement Network Triangulation?

I am developing an application in android 2.2 to identify location of user by Network: 1) First: location= (GsmCellLocation)tm.getCellLocation();[详细]

2023-04-07 11:13 分类：问答