location

Check if route contains a specific coordinates or not

由 眉间皱痕 提交于 2019-12-08 11:48:23
问题 I am currently developing an application in which i want to know if a route contains a certain set of lat long coordinates. Here is my code: public class PathActivity extends FragmentActivity implements OnMapReadyCallback, RoutingListener { private GoogleMap mMap; FetchLocation fetchLocation; LatLng start; LatLng end; ProgressDialog pd; List<Polyline> polylines; private static final int[] COLORS = new int[]{R.color.gradient_dark_pink}; FirebaseFirestore firestore; @Override protected void

Determining a location based on WIFI APs and Signal Strength

由 我只是一个虾纸丫 提交于 2019-12-08 08:41:14
问题 I need to determine location based upon N number of WIFI Access Points and their signal strengths. Is the best way to do this using a least-squares fit algorithm? How would I go about implementing such an algorithm? 回答1: Least Squares fitting should work if your noise in the signal strength is Gaussian, ie. follows a normal distribution. What you are really looking for is the maximum likelihood estimator for the mean of the signal strength, and you hope that that estimation corresponds in

how to get the location(lat/lng) on google maps v3 from the location(x,y)

由 你。 提交于 2019-12-08 08:24:56
问题 i have the (x,y) (event.pageX-$("#map_canvas").offset().left,event.pageY-$("#map_canvas").offset().top) but how to get the (lat,lng) thanks 回答1: In your initialize function for a map define: var overlay; overlay = new google.maps.OverlayView(); overlay.draw = function() {}; overlay.setMap(map); Next when you want to get the location run: var point=new google.maps.Point(x,y); var location=$overlay.getProjection().fromContainerPixelToLatLng(point); Best K 回答2: Enter left and top pixel offset (x

MapView with local search

由 南笙酒味 提交于 2019-12-08 08:24:33
问题 I've a question about doing a local search in Apple maps which I have already implemented into my app. The app should show the user where are "supermarkets" around him. My mapView also shows the user's current location but I don't really know how I should do this with the results of the market-locations. Maybe Apple provides a solution/advice for this. Thanks in advance. The results (supermarkets) should be displayed as in this picture. UPDATE: The function works perfectly but is it also

I need help finishing this 3 level dynamic dropdown

由 限于喜欢 提交于 2019-12-08 08:12:56
问题 I know there are tons of other topics based on this subject. My code is based on one of them. It works great. The only issue with it is that it's a 2 level dropdown. I need to add another dropdown so I can complete my Country, Region, City list. If you can look at my code and advice me how to add the 3rd dropdown(cities), that would be wonderful. index.php <html> <head> <script> function showHint(str) { var xmlhttp; if (str.length==0) { document.getElementById("regiondiv").innerHTML="";

Unity3D - Get smooth speed and acceleration with GPS data

由 左心房为你撑大大i 提交于 2019-12-08 07:56:29
问题 I'm using Unity3D and I created simple distance, speed and acceleration calculator using latitude and longitude of last position. I'm calculating last distance, speed and acceleration in each GPS update (approximately once per second). But sometimes (2-3 second interval) latitude and longitude values changes rapidly (in clear weather and no obstacles). That's why speed and acceleration values gets unreal results. For example, at stable 40 km/h speed, speed value becomes 60 km/h and returns to

Create database with specific data file location in Mysql for one database at runtime

由 一个人想着一个人 提交于 2019-12-08 07:51:20
问题 Can anyone give any input on how to create database in mysql where it should create its data file at runtime instead of storing it on default location specified in my.cnf. Is there any way for doing this in mysql anyone come across. 回答1: Use a --datadir option to specify the new data directory location each time you start the server. link 来源： https://stackoverflow.com/questions/1092103/create-database-with-specific-data-file-location-in-mysql-for-one-database-at-ru

Getting Android Location and return “unknown” or null when providers are unavailable

由 百般思念 提交于 2019-12-08 06:58:31
问题 I'm using this script by Fedor but I want a little difference: When both GPS and Network Provider is unavailable, I want to app to return null or "unknown" string. I modified the script, but when I run, it force closes, the logcat says: I have the following codes: MyLocation.java package com.example.GetALocation2; import java.util.Timer; import java.util.TimerTask; import android.content.Context; import android.location.Location; import android.location.LocationListener; import android

Print Longitude and Latitude in textbox Android

由 泄露秘密 提交于 2019-12-08 05:24:52
问题 I have looked about and cannot find any direct threads regarding what I am looking for. I am trying to create an Android application which dials out an emergency number at the push of a button (which I have got working) but cannot get the location (displayed in Longitude and Latitude) to display, I have tried doing it with Toast and EditText boxes. I am new to Android development so wanted to start with something easy, but the LongLat part is being troublesome. Any help would be greatly

How to send location to other user in XMPP ? Swift 3.0

由 。_饼干妹妹 提交于 2019-12-08 05:19:08
问题 I am developing chat app in that i need to send location other user. (One to One Chat) I have read xep-0080 but in XMPP framework XEP-80 class not avail-be. I have also checked XMPPPubSub Module but not getting how to send user location to other user. Reference links : https://github.com/robbiehanson/XMPPFramework/issues/506 How to pass location using XMPP in ios sdk? https://github.com/buddycloud/buddycloud-iOS-client Server : ejabber It's help full if provide snippet of code and tutorial
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