geolocation

问题 What i have done so far: i'm developing an application where i have to display more than(50K) points/Markers on the Navteq map divided into different segments. for example: if i have 50K points i will divide all points into different segments. if i divide 50K points into 50 segments each segment would have 1000 points (may not be 50 segments , it may depend). right now it is working but it takes long time and hangs to render all the points on the MAP.so that i would like to perform

问题 I’m working on the iOS version of my phonegap-based navigation app. My app tracks the user’s location around a walk route using GPS and alerts the user using audio (navigator.notification.beep) and tactile (navigator.notification.vibrate) feedback when they reach a location at which there’s new instructions for them to follow. When my app is running in the foreground, both the audible beep and the vibration fire on reaching the geographic location but when the app is paused in the background,

问题 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? 回答1: 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

问题 [blocked] Access to geolocation was blocked over insecure connection to http://www.hnsjb.cn. Should I change my website to the https protocol? 回答1: iOS 10 and also desktop Safari 10 seem to require https connection now. Safari also seems to be more strict than what Chrome did earlier. No mixed content warnings are allowed, Chrome allows e.g. map tiles to load over normal http. 回答2: I could not find any guideline specific to Safari, but this issue has been discussed by other web browsers as

问题 I currently have a MySQL table that is structured as follows: id name lon lat ----- ----- ----------- ----------- 1 Mark -76.316528 40.036027 2 John -95.995102 41.25716 3 Paul -82.337036 29.645095 4 Dave -82.337036 29.645095 5 Chris -76.316528 40.036027 The way I currently query the DB to see if a user's location is within a certain mile radius of a given location is by doing this. function Haversine($lat_from, $lon_from, $lat_to, $lon_to) { $radius = 6371000; $delta_lat = deg2rad($lat_to-

问题 Is there a way to make a browser aware of iBeacon devices in its proximity? Similar to the way HTML5 Geolocation is working... If not would this be something that can be achieved with a browser plug-in that can provide the detail to be consumed by javascript? 回答1: Unfortunately, no. No web browsers have implemented any bridges between beacon detection and JavaScript. I don't think a plugin approach is possible on mobile browsers (either iOS or Android), because neither browser supports

问题 Is there a way to make a browser aware of iBeacon devices in its proximity? Similar to the way HTML5 Geolocation is working... If not would this be something that can be achieved with a browser plug-in that can provide the detail to be consumed by javascript? 回答1: Unfortunately, no. No web browsers have implemented any bridges between beacon detection and JavaScript. I don't think a plugin approach is possible on mobile browsers (either iOS or Android), because neither browser supports

问题 Note, due to changes to Google's "Timeline" this previous answer no longer works. Google offers a "Timeline" service which allows users to access their phone's location history. I want to extract my phone's current location. If I select "today" in Timeline, I can "Export this day to KML" This contains the data I need, but I don't know how to get these data programatically. I don't want to have to log in to the website every time I need this information. The URL it provides is - https://doc

问题 I am trying to scrape user location with respect to user names from twitter. Input: The user list has more than 50K User names AkkiPritam,6.77E+17,12/15/2015,#chennaifloods AkkiPritam,6.77E+17,12/15/2015,#bhoomikatrust AkkiPritam,6.77E+17,12/15/2015,#akshaykumar gischethans,6.77E+17,12/15/2015,#chennaifloods mid_day,6.77E+17,12/15/2015,#bollywood mid_day,6.77E+17,12/15/2015,#chennaifloods Nanthivarman16,6.77E+17,12/15/2015,#admkfails Nanthivarman16,6.77E+17,12/15/2015,#jayafails

问题 I am trying to scrape user location with respect to user names from twitter. Input: The user list has more than 50K User names AkkiPritam,6.77E+17,12/15/2015,#chennaifloods AkkiPritam,6.77E+17,12/15/2015,#bhoomikatrust AkkiPritam,6.77E+17,12/15/2015,#akshaykumar gischethans,6.77E+17,12/15/2015,#chennaifloods mid_day,6.77E+17,12/15/2015,#bollywood mid_day,6.77E+17,12/15/2015,#chennaifloods Nanthivarman16,6.77E+17,12/15/2015,#admkfails Nanthivarman16,6.77E+17,12/15/2015,#jayafails