geolocation

Google Api Get nearest locations

由 南楼画角 提交于 2019-12-04 08:15:15
问题 I want to get the List of nearest locations of by passing an address of location. like: Los Angeles, should give me the list of all locations near to it either in json or xml format Is there any Google api for that purpose? 回答1: Google Places API has lists of places near a given point. For example you can search for bookshops near Convent Garden, London, UK. A good example can be found in the Google Maps Javascript API V3 Places Library documentation. You can also use the Geonames.org data

How to simulate browsing from various locations?

由 房东的猫 提交于 2019-12-04 07:36:43
问题 I want to check a particular website from various locations. For example, I see a site example.com from the US and it works fine. The colleague in Europe says he cannot see the site (gets a dns eror). Is there any way I can check that for my self instead of asking him every time? 回答1: Sometimes a website doesn't work on my PC and I want to know if it's the website or a problem local to me(e.g. my ISP, my router, etc). The simplest way to check a website and avoid using your local network

Point in Polygon using Winding Number

由 妖精的绣舞 提交于 2019-12-04 07:35:11
The question is: how do you determine if a point is within a polygon? This question has been asked and answered many times. There are multiple methods for determining whether a point is within a polygon. I've grokked the Winding Number algorithm, ported a solid answer from another SO thread into C# and written xUnit tests around it to ensure that I could refactor ruthlessly. The goal was to take an answer, all of which seem to use a procedural programming approach and variable names that are similar to those you'd find in a mathematical formula, and refactor it into a reasonably sound set of

Javascript Function - Convert Geolocation Code to Street Address

由 亡梦爱人 提交于 2019-12-04 07:33:25
I am looking for a javascript function or jquery library to convert geolocation code (e.g. 42.2342,32.23452) to street address For examples. navigator.geolocation.getCurrentPosition( function(pos) { $("#lat_field").val(pos.coords.latitude); $("#long_field").val(pos.coords.longitude); } ); Here is a google api URL to get address data http://maps.googleapis.com/maps/api/geocode/json?latlng=41.03531125,29.0124264&sensor=false I want to see "formatted_address" : "Hacı Hesna Hatun Mh., Paşa Limanı Cd 2-26, 34674 Istanbul, Türkiye", navigator.geolocation.getCurrentPosition( function(pos) { $("#lat

GPS Signal Strength Calculation

由 你。 提交于 2019-12-04 07:32:27
I want to display a signal bar for a GPS device using .NET CF. I'm able to read NMEA data and get the SNR signals. But they are a number of satellites with some active and some inactive with various SNRs. I thought about getting average of total SNR but it won't give a accurate value as three strong signal satellite is enough for GPS fix and with another 5 satellites with bad SNR can mess up the signal bar calculation. How am I gonna calculate GPS signal in percentages in a proper way? Use the GSA NMEA sentance to get the Dilution of Precision : This sentence provides details on the nature of

Why use the SQL Server 2008 geography data type?

由 限于喜欢 提交于 2019-12-04 07:21:23
问题 I am redesigning a customer database and one of the new pieces of information I would like to store along with the standard address fields (Street, City, etc.) is the geographic location of the address. The only use case I have in mind is to allow users to map the coordinates on Google maps when the address cannot otherwise be found, which often happens when the area is newly developed, or is in a remote/rural location. My first inclination was to store latitude and longitude as decimal

MySql using Float Data Type To Store Geographic Coordinates

由 寵の児 提交于 2019-12-04 07:04:32
I have a table that stores longitude and latitude coordinates (google maps) i have the columns defined as float however when i try to insert a value -61.45859899999999 and 10.28289 they are being rounded off to -61.46 and 10.30. How can i modify the columns to hold the data as is. I am using mysql toad . Under is the code for the table: CREATE TABLE `tblGeoCodes` ( `recNo` int(11) NOT NULL AUTO_INCREMENT, `longLocation` float(30,2) DEFAULT NULL, `latLocation` float(30,2) DEFAULT NULL There are two problems with your implementation. The reason the values are both being rounded to 2 digits of

On Google Spreadsheet, how do you call the CIty, Country of an IP?

由 安稳与你 提交于 2019-12-04 06:27:11
I would like to know if there is a formula/script one could use on Google Spreadsheet to obtain the City,Location of an array of IP addresses. i.e lets imagine that each cell on column A has 100 IP addresses, what formula/script should I use on column B to get the respective city and location? After some digging I've figured out how to do this. Copy the import_json_appsscript.js script on https://gist.github.com/chrislkeller/5719258 . This will be the script that will create the ImportJSON() function to a Google spreadsheet Go to Google spreadsheet, on the menu bar got to Tools > Script Editor

Formula/algorithm to offset GPS coordinations

由 為{幸葍}努か 提交于 2019-12-04 06:24:18
问题 I have GPS coordinates provided as degrees latitude, longitude and would like to offset them by a distance and an angle. E.g.: What are the new coordinates if I offset 45.12345 , 7.34567 by 22km along bearing 104 degrees ? Thanks 回答1: For most applications one of these two formulas are sufficient: "Lat/lon given radial and distance" The second one is slower, but makes less problems in special situations (see docu on that page). Read the introduction on that page, and make sure that lat/lon

How to retrieve a set of locations within particular range from user's location from SQLite database

由 偶尔善良 提交于 2019-12-04 06:18:35
问题 I have some location coordinates stored in my SQLite database table. I want to retrieve the locations within 1 km range from the use's current location. Right now I am fetching all values from database and have written a method to retrieve the values within my range. This leaves me great overhead as my table might contain more than 1000 coordinates. So i am looking for a better way to do this. Is it possible to directly retrieve locations within my range directly using SELECT query? I found
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