geojsondataset

Introduce

geojson dataset,In the dataset, a large number of geojson can be automatically cut by geojson-seg and consumed by frame

Install

• CDN

<script type="text/javascript" src="https://unpkg.com/geojsondataset/dist/geojsondataset.js"
></script>

• NPM

  npm i geojsondataset

  #or

  yarn add geojsondataset

API

GeoDataSet

• constructor(options)

  • options.coordinateCount the count of per geojson file coordinates
  • options.loopFPS the count of fps when loop

  import { GeoDataSet } from "geojsondataset";
  
  const geoDataSet = new GeoDataSet({ coordinateCount: 3000, loopFPS: 2 });

• on(dataGroupId,handler) Listen for a data set to be dequeued

  • dataGroupId the id data group
  • handler callback ,when data is listed

  import { GeoDataSet } from "geojsondataset";
  
  const geoDataSet = new GeoDataSet({ coordinateCount: 3000, loopFPS: 2 });
  
  geoDataSet.on("testgeojson", (geojson) => {
    //do some things
  });

• off(dataGroupId,handler) remove Listen for a data set to be dequeued

  • dataGroupId the id data group
  • handler callback ,when data is listed

  import { GeoDataSet } from "geojsondataset";
  
  const geoDataSet = new GeoDataSet({ coordinateCount: 3000, loopFPS: 2 });
  
  const handler = (geojson) => {
    //do some things
  };
  geoDataSet.on("testgeojson", handler);
  geoDataSet.off("testgeojson", handler);

• addGeoData(dataGroupId,geojson) add geojson data to dataGroupId

  • dataGroupId the id data group
  • geojson geojson data

  import { GeoDataSet } from "geojsondataset";
  
  const geoDataSet = new GeoDataSet({ coordinateCount: 3000, loopFPS: 2 });
  
  const handler = (geojson) => {
    //do some things
  };
  geoDataSet.on("testgeojson", handler);
  
  fetch('./data/test.geojson').then(res=>res.json()).then(geojson=>{
     geoDataSet.addGeoData('testgeojson',geojson);
  
  })