kandi X-RAY | turf Summary
kandi X-RAY | turf Summary
Top functions reviewed by kandi - BETA
- Computes the band .
- a helper function to walk out to cell coordinates
- Returns the exit coordinate of a cell
- determine the start position of a cell
- Iterates over the GeoJSON objects and adds them to the array
- Draws a trace path in the graph .
- Iterates over the GeoJSON objects and adds them to the array
- Computes the contour of the given data .
- Convert grid of grid to path coordinates .
- Finds a segment of a provided JSON .
turf Key Features
turf Examples and Code Snippets
Trending Discussions on turf
I have written a Java Program that converts XML to CSV. But currently it is converting partial only....
ANSWERAnswered 2022-Jan-22 at 22:25
I guess the inner
concat(AREANAME,',',DEAFAULT should be
ANSWERAnswered 2022-Mar-07 at 06:57
After a lot a effort i got the Solution Sometime undefined and null is generate default Therefor route line not render on android, but ios it will handle it by default So
I have been developing this app since 2019 and I had a released version of it and I was working on an update so there is a new version of the Android Studio came out I have updated Android Studio to
Android Studio Bumblebee | 2021.1.1 Patch 1
kotlin_version = "1.6.10" and
minSdkVersion 19, targetSdkVersion 31
I was solving some errors at the beginning like
duplicate classes and stuff until I faced this error with firebase when setting the data to firebase Database or Firestore, before this update my Code was working fine and I didn't change much I just added new functions to the app like
what is happening is that whenever I'm setting data or update some existing data in Firebase Databse or Firestore the app restart and leave no error to detect in the Logcat, Logcat will not be cleared it is just wont show error at the moment of restart, and my app will automatically set a new data to the Firestore or Firebase and some times restart when reading values,
In the new update, I have come across errors like
SQLiteConstraintException: UNIQUE constraint failed
E/android.vendin: Not starting debugger since process cannot load the jdwp agent. i dont know if it's related but those are showing.
this is a serious problem guys, I have an iOS version same app written in Swift they both share the same functions to write and read to the database I mean same code different Languages connected to the same database there is no errors everything works fine on iOS with the firebase itself, and the same code was working before this update that's mean there's no problem with my code, please if anyone knows anything or came across this kind of situation let me know I need some help, I'm stuck for a week now I have been searching all over the internet Didn't found any answer, if anyone needs a further declaration or sharing some code please let me know
emulator runing R version and the app was tested on a real Device SamsungNote S21
Note: if I Run the app the first time and write to firebase the app will crash or as I mentioned restart.
Note: but if I wrote to firebase and Re-run my app before the app write again or before the crash the app will works fone
ANSWERAnswered 2022-Mar-06 at 03:20
I see there are no problems with your dependencies and I think what you have is that you write data to the firebase database after getting some data using ValueEventListener, so even if your activity has destroyed ValueEventListener will still listen in the previous Activity according to this answer https://stackoverflow.com/a/63636051/8793968 @ and this answer https://stackoverflow.com/a/63636048/8793968 @ so it will restart and show no errors
im currently trying to validate that a polygon is completely within another polygon. But there is a use case for more complicated polygons where it should return false but turf understand it as a valid one.
Here is the sandbox.
And here are the polygons. https://gist.github.com/tomascenteno42/107c19531ebbcf8f8106c27282bf3891
ANSWERAnswered 2022-Mar-03 at 13:09
The problem is that, currently,
booleanWithin only handles a very limited case of testing convex polygons. That's because it only checks if the vertices of the 1st polygon are within the 2nd polygon.
This might not be get fixed before v7.
For now you might consider to use de9im library.
It's from turf's issue page.
I'm trying to zoom-in on a set of coordinates using react-map-gl. To do so, the library encourages us to use React's Refs. When instantiating the component in
render, I'm passing down a ref that should hold the underlying MapBox map object. I managed to make the behavior work. Only problem: it's highly inconsistent.
I'm calling a method called
componentDidUpdate. But it only works on the initial load. If I reload the page, I've got an error from Gatsby. If I close the error it will work again. Up until the next reload.
The error is that
null. I tried to put a conditional to verify that the value isn't
null before trying to access it, however this cause the animation to just never work. No matter how many times I reload, it will never be performed. Whereas without the conditional it could at least work half the time before crashing. So this already is a mystery in itself and if someone has an idea for why such behavior can happen, I'm all ears.
Still, I wasn't discouraged and tried to put the call to
setCamera in a
setTimeout and yes, it works! Even putting a very low timeout like 1 makes the code work 95% of the time. But I'm unsatisfied with it, because I understand that putting that kind of timers isn't what I'm supposed to do and to make things worse, it doesn't fix the issue consistently.
My understanding of the problem is that MapRef is still not set in
componentDidUpdate for some reason. It's being set sometimes later. I don't know if React supports threading or if some kind of async witchcraft is deceiving me behind the scenes, but what I'm wondering is when am I guaranteed for my ref to be properly set? Where or how should I write this code?
Thank you in advance to anyone who can help me on that. 🙂
Here's my sample code:...
ANSWERAnswered 2022-Feb-25 at 14:07
I've found a solution!
My issue was that
setCamera was dependent on two conditions and these two conditions could happen in any order.
- Fetch is successful and we have data to display.
- The map is loaded and we have a ref to it.
Instead of initializing
mapRef, in the constructor or in
render, I've made a function…
I have a map that has some overlapping points. I'm using a quadtree and turf.js to determine, when I click on a point, how many other points are within a 30 mile radius.
What I'd like to do (if there's more than one point in that radius) is use d3.forceSimulation to equally spread out the overlapping points.
This is a pretty close example of what I want to do, but uses d3v3 and google maps: http://bl.ocks.org/cdmahoney/raw/9876525/?raw=true
I have included d3.forceSimulation and when I click on a place with more than one point within the 30 mile radius, the points do take on the force-- but they move up to the left hand corner of the page.
Help very much appreciated!!...
ANSWERAnswered 2021-Dec-05 at 06:03
While I'd be tempted to not use a force layout for this, I'll work with the code you have here (though the question of the lines connecting the circles to their original location is not addressed here) and quickly address why the circles do not behave as you expect.
A force layout will create the appropriate properties on a node if they don't exist. For position of a node, these properties are d.x and d.y. Your data does not have x or y properties, so when you create the force, the nodes are initialized with values around the origin, [0,0], which is why they migrate to the top left corner. This problem can be solved by creating x and y properties:
Does anyone know why am I getting
Module should export a function: @turf/helpers when I add
@turf/helpers to my
buildModules in nuxt.config.js?
ANSWERAnswered 2021-Oct-09 at 19:26
Importing it as a regular NPM package and using it without colliding with the same variable name fixed the issue!
Indeed, this was not a Nuxt module.
after update from angular 11.2.6 to angular 12.2.7 the binding to the nouislider component is not working anymore. Running
ng serve prints this error:
The property and event halves of the two-way binding 'ngModel' are not bound to the same target.
Use the ng2-nouislider in a fresh installation it works fine.
ANSWERAnswered 2021-Oct-01 at 11:15
As you can see from the image below, that library's latest Angular version is 4.4.1 which is before way Angular Ivy. It is not expected to work seamlessly wih Angular 12.
But you have an even better solution. You can copy-paste the code of the component in the GitHub project and put it in your own. It's a relatively simple component so it will not be very difficult to migrate it. You will also have the advantage of not worrying about the dependency anymore which makes it more maintanable.
You can check the component's code here: https://github.com/tb/ng2-nouislider/tree/master/src
ANSWERAnswered 2021-Sep-21 at 08:57
An update query like this doesn't return a result set. Remove the return type:
I want to show the user the distance from the last drawn point to the cursor. In order to do so I need to add a change listener to the geometry of the feature.
Every time the user moves the mouse this change will get triggered and I need to calculate the distance. So in order to do so I want to use Turf.js. But the problem is that output distance is way to big. I think it has to do with the coordinate system I use.
In my project I the coordinates are in
EPSG:3857 and I think the distance function expects
ESPG:4326. I have tried to use ol proj in order to convert. But then I get an error stating: Uncaught TypeError: destinationProjection is null
olProj.transform(geom.getCoordinates().slice(-3), 'EPSG:3857', 'ESPG:4326');
ANSWERAnswered 2021-Sep-06 at 14:56
It is null because
'ESPG:4326' should be
'EPSG:4326'. But you do not need turf to do that
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