Setting geofencing from coordinate 41.7523,12.8629

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP



Setting geofencing from coordinate 41.7523,12.8629



cant find scala code to find the list of coordinates which comes with in 1 mile distance from a particular coordinates 41.7523,12.8629.


scala


41.7523,12.8629



how can we geofencing for above given coordinate (spark scala)





what do you mean by "the code is not working"? do you get an error? do you get wrong answer? Please describe the output you get.
– Yaron
Aug 6 at 7:03




1 Answer
1



Using this function we can get one nearby point randomly within one mile radius:


nearby point randomly


one mile radius


def getPoints(xc:Double,yc:Double,radiusInMiles:Int)=
val ran = new scala.util.Random()
val conv = 1609.344
//Here, there are about 111,300 meters in a degree
val radiusIndeg = radiusInMiles*conv / 111300f;
val u = ran.nextDouble()
val v = ran.nextDouble()
val w = radiusIndeg*Math.sqrt(u)
val t = 2*Math.PI*v
val x = w*Math.cos(t)
val y = w*Math.sin(t)
val newX = x/Math.cos(Math.toRadians(yc))
val fLong = newX+xc
val fLat = y+yc
(fLong,fLat)



By calling the above function repeatedly in a for loop, we can get desired number of random points within 1 mile:


for(i<-1 to 30) yield getPoints(41.7523,12.8629,1)



To get 30 nearby points randomly,


In Scala REPL:
scala> for(i<-1 to 30) yield getPoints(41.7523,12.8629,1)
res25: scala.collection.immutable.IndexedSeq[(Double, Double)] = Vector((41.74982541032955,12.86481315224305), (41.754168266
959056,12.870364411375881), (41.75544877222746,12.85451037482713), (41.7612335738966,12.856539452781801), (41.76358834447362
,12.861061408964183), (41.763040037484664,12.867369860689339), (41.75110057115767,12.873299266989251), (41.74658541773817,12
.865223104625423), (41.74925109768552,12.868277572490877), (41.76504777008776,12.86109583406441), (41.75732730141462,12.8722
5307703036), (41.75762735062798,12.860633801016085), (41.75003276741254,12.856383089176347), (41.760707286583,12.85341268512
5267), (41.748073299368386,12.858209316913472), (41.76018412949083,12.866118423321987), (41.74213603200559,12.87308644848186
), (41.761324688000265,12.86506896052553), (41.749976...
scala> res25.foreach(println)
(41.74982541032955,12.86481315224305)
(41.754168266959056,12.870364411375881)
(41.75544877222746,12.85451037482713)
(41.7612335738966,12.856539452781801)
(41.76358834447362,12.861061408964183)
(41.763040037484664,12.867369860689339)
(41.75110057115767,12.873299266989251)
(41.74658541773817,12.865223104625423)
(41.74925109768552,12.868277572490877)
(41.76504777008776,12.86109583406441)
(41.75732730141462,12.87225307703036)
(41.75762735062798,12.860633801016085)
(41.75003276741254,12.856383089176347)
(41.760707286583,12.853412685125267)
(41.748073299368386,12.858209316913472)
(41.76018412949083,12.866118423321987)
(41.74213603200559,12.87308644848186)
(41.761324688000265,12.86506896052553)
(41.74997668526327,12.86038167090363)
(41.75228048449065,12.872686927175733)
(41.75972428137232,12.859596070561539)
(41.7562836928502,12.86187286720154)
(41.75715996439461,12.861374766455278)
(41.760604332388,12.867977103427238)
(41.74018421174905,12.865172431590485)
(41.74059829855585,12.86438943748021)
(41.7593627526156,12.873744103200057)
(41.747241804657264,12.8542871167178)
(41.76014663643563,12.858456116302811)
(41.740826160697715,12.867433800624394)

scala>





how we can get all the coordinates instead of 30 within one mile radius?
– Sheryl Brooke
Aug 23 at 6:25





How can one get all points? There will be infinite in number? You must fix a number first and you can find that many co-ordinates.
– RAGHHURAAMM
Aug 23 at 6:30





Just replace the number 30 in for loop with the desired number of co-ordinates.
– RAGHHURAAMM
Aug 23 at 6:31





i want all coordinates that comes under one mile .. i donot know how many it will come ?
– Sheryl Brooke
Aug 23 at 6:40






By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

-

Popular posts from this blog

Firebase Auth - with Email and Password - Check user already registered

Image
Clash Royale CLAN TAG #URR8PPP Firebase Auth - with Email and Password - Check user already registered I want to check when a user attempts to signup with createUserWithEmailAndPassword() in Firebase user Authentication method, this user is already registered with my app. createUserWithEmailAndPassword() 8 Answers 8 To detect whether a user with that email address already exists, you can detect when the call to createUserWithEmailAndPassword () fails with auth/email-already-in-use . I see that @Srinivasan just posted an answer for this. createUserWithEmailAndPassword () auth/email-already-in-use Alternatively, you can detect that an email address is already used by calling fetchSignInMethodsForEmail() (previous called fetchProvidersForEmail() ). fetchSignInMethodsForEmail() fetchProvidersForEmail() When the user trying to create an user with same email address, the task response will be "Response: The email address is already in use by another account." mFirebas
Read more

Dynamically update html content plain JS

Image
Clash Royale CLAN TAG #URR8PPP Dynamically update html content plain JS So I have a script bound in my index.html, which literally has to fetch an array of jsons from an api, then dynamically update my page when get response. But as a result I'm getting an as the only update of my page. here is my script fetch(url) .then((resp) => resp.json()) .then((resp) => resp.results.forEach(item => fetch(item.url) .then((response)=> response.json()) .then((response) => pokeArr.push(response)) .catch(console.log) ) ).catch(console.log) const filler = () => if(!pokeArr) return 0 pokeArr.map((i,j)=> return `<tr>$i.name</tr>` ) const pokeindex = () => document.getElementById('a').appendChild(document.createElement(filler())) pokeindex() When I'm consoling it, I can see in the console all the responses I get, so I'm at least doing the fetching part right. What's parberakan ? What's pokeArr ? – T.J. Crowder Aug 8 at 12
Read more

How to determine optimal route across keyboard

Image
Clash Royale CLAN TAG #URR8PPP How to determine optimal route across keyboard I'm trying to automate the typing process in a video game. Players are given an on-screen QWERTY keyboard layout that they can navigate with the control stick (up, down, left, right) in order to select a letter to type. I was wondering if there was a module for Python (or some other resource I could explore) that would help my program find a path across the keyboard as it types each letter in a given message. In other words, if the first letter typed was "A" and the next letter was "B", the module would know that the program should move 1 space down on the keyboard and 4 spaces to the right. Currently, I have the program resetting to the "G" key after each letter is typed (allowing me to use fixed-directions as the program parses each character in the desired message). As you can imagine, this is quite inefficient and defeats the purpose of automating the typing in the fir
Read more