togeojson | convert KML and GPX to GeoJSON , without the fuss | Map library
kandi X-RAY | togeojson Summary
kandi X-RAY | togeojson Summary
This converts KML & GPX to GeoJSON, in a browser or with Node.js.
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Top functions reviewed by kandi - BETA
- Get the placemark from root .
- Get geometries from root node
- Get a sweep data structure
- get the points for a point
- get coord and values
- Return the line style object for the given extensions .
- get a route
- Parse a kml color value .
- Get a point
- Gets all coordinates
togeojson Key Features
togeojson Examples and Code Snippets
License : Strong Copyleft (CC BY-SA 4.0)
Copycd MyProject/app/assets
npm install togeojson
//the titanium map module
var Map = require('ti.map');
//the node module we installed
var togeojson = require('togeojson');
//a dependency of togeojson which we will alCommunity Discussions
Trending Discussions on togeojson
QUESTION
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 setCamera in 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 this.mapRef.current is 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:
...ANSWER
Answered 2022-Feb-25 at 14:07I'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…
QUESTION
I made a code below for creating shapes with some informations. I can edit thoose informations until my map is open. But after update geojson by "Export features to local file" and page reload, shapes remain unclickable and to correct the informations I have to delete some shapes and recreate them with proper parameters.
Question:
Is it possible to edit the shape's data each time I just open my page? Like I can edit the shapes itself by "Edit layers" button?
...ANSWER
Answered 2022-Jan-23 at 14:45Of course, I did it quickly, so you have to adapt to your own code. I removed L.GeoJSON.AJAX but nothing prevents you from continuing to use it, I advise you not to ;)
QUESTION
I have a map in the EPSG:4326 projection, and I'd like to use an EPSG:3857 tileset such as the one from Mapbox. However, I've so far not been able to make it work.
In this discussion ahocevar explains that arbitrary reprojection of vector tiles is not supported or planned because the vector clipping would be complex and introduce artifacts from curved clip-paths. The 3857 and 4326 are square relative to each other, but the code to support reprojecting between the two would complexify the library.
ahocevar also mentions a workaround involving image tiles sourced from a hidden map. However, this doesn't make sense because in any case, 3857 tiles do not line up with a 4326 tile grid, because no amount of transformation can change where the tile boundaries are.
I know there are examples of rendering to an offscreen canvas and using Mapbox GL, but both of these aren't ideal because they are going around the library (e.g. it doesn't work with map.getFeaturesAtPixel). I'm wondering if openlayers itself has a way to do this.
Here is an attempt: https://codesandbox.io/s/mvt-3857-to-4326-attempt-qsf07
Here's the relevant code:
...ANSWER
Answered 2021-Sep-03 at 20:38If it can be done for one tile as in https://codesandbox.io/s/drag-and-drop-custom-mvt-forked-2jr6n it can be done for all tiles in the view extent. To maintain a styleable vector format after reprojection it needs to be a Vector layer (using the MVT featureClass: Feature option to overcome the coordinates to tile pixels issue) as tile grids must have the same tile size within a zoom level, which would not be the case if you attempted to use a grid from one projection as tiles in another projection.
QUESTION
I have already (receive) an html page with leaflet map. I would like to display edges (links) informations when mouse over(or hover?). I can get the data from html-javascript via the following command `Roads.toGeoJSON().features
...ANSWER
Answered 2021-Jul-09 at 04:50The L.Tooltip is very helpful for this case. By default it is only displaying on mouseover. Doku
QUESTION
in Leaflet.Editable I need to draw several polygons, be able to edit them and at the end save them as GeoJSON or delete them all together by external button. I can do it with one polygon:
...ANSWER
Answered 2021-Jun-29 at 21:25Grouping the new polygons is the way to go, but you need to set up a group to hold them outside the callbacks for the controls. Add an empty group to the map first, then add the new polygons to that as you create them. Something along these lines should work:
QUESTION
I am using the Bootleaf IAG framework.
I can not figure out how to get the bounding coordinates of a filtered layer.
I am modifying the bootleaf code to query points with a polygon layer. The Query Widget already allows users to draw a polygon, but I want to select a polygon from a layer hosted on my arcgis server. I modified the filter widget by removing the text field and allowing my users to select polygon layers and values from a dropdown menu. This works fine.
Now I need to take the result of the layer.setWhere(where, handleError); code and merry it with the query below. I need selectedPolygon to equal the result of layer.setWhere(where, handleError); and use the bounding coordinates in the .within section of the query.
I have tried a number of things, L.latLngBounds, getBounds(), and toGeoJSON().features[0].geometry.coordinates to name a few, but but I can not figure out how to pull out the bounds. What is the correct code?
ANSWER
Answered 2021-Jun-09 at 01:16I don't know much about bootleaf, but here are some tips to get you started. Based on your question and comments, this will hopefully clear things up and instruct you on how to apply what you need in your scenario.
Hook UI tosetWhere
When the user selects an option from the UI, you can call setWhere on the layer you're providing from the arcgis server. Let's say there's a polygon layer, in my example, called statesFeatureLayer, which is an L.esri.featureLayer
QUESTION
I have an issue with the DrawManager drawing and exporting the overlays into a GeoJSON object.
I can draw a polygon with holes in the DrawManager and the overlays will show holes in the object. The problem is when exporting this to the DataLayer.
The datalayer makes exporting GeoJSON easy. Regarding holes: polygon data layer
...ANSWER
Answered 2021-Feb-24 at 04:42My suggestion would be not to add the polygons to the DataLayer until they need to be exported. Remove the code that adds the polygons to the DataLayer as they are drawn, then make your export function like this:
QUESTION
I created a map of Africa that shows all of Africa's administrative divisions. The purpose of this map is to show its users in which country each of the African languages is spoken.
When I try to export it to a web map, it adds a thick blue line that represents the boundaries of these divisions. How can I remove the thick blue line?
Another problem this map has is that when I hover over any of the divisions, a pop up appears that contains info about that division. The popup causes the map to move lower in order to fit. How can I prevent it?
The expected result that I have in mind is that when the users hover over any of the administrative divisions a pop up appears which provides the name of the division and the language that is spoken in that division.
SO I have tried:
- Checking if there is anywhere in my files where I can set the "Autopan" into false
- Using leaflet-responsive-popup
- Using Openlayers instead of Leaflet
But none of them worked. Currently what I am doing is deleting some columns.
I would appreciate any help or idea that can help me with fixing the issue.
The version of the QGIS that I am using is 3.16.1 - Hannover and the version of QGIS2WEB is 3.16.0.
The HTML and .js generated by QGIS2WEB is below:
...ANSWER
Answered 2020-Dec-16 at 15:47The implemantaion of the following depends how you import your data, but in gernal to disable the border you have to set stroke to false:
QUESTION
I've read through the docu on Turf.js pointsWithinPolygon and understand that it requires an array. I know what I want to accomplish but I'm not sure how to properly transform my L.geoJSON layers to satisfy the array condition. Please excuse the strange formatting as I've been playing around a lot lately and have lost some structure.
My points are:
...ANSWER
Answered 2020-Dec-14 at 07:10Don't add the feature to a GeoJSON-Group, to add the group again to a GeoJSON-Group. One time is enough.
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