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Still empty tile.layers

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vershwal
2018-05-29 17:22:07 +05:30
parent 6780f919ff
commit 39d5bed300
1 changed files with 24 additions and 3 deletions
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27
modules/svg/mvt.js
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@@ -14,6 +14,9 @@ import {
import { geoExtent, geoPolygonIntersectsPolygon } from '../geo';
import { svgPath } from './index';
import { utilDetect } from '../util/detect';
import vt from '@mapbox/vector-tile';
import Protobuf from 'pbf';
var _initialized = false;
var _enabled = false;
@@ -145,13 +148,31 @@ export function svgMvt(projection, context, dispatch) {
function parseSaveAndZoom(extension, data) {
var tile = new vt.VectorTile(new Protobuf(data));
var layers = Object.keys(tile.layers);
if (!Array.isArray(layers))
layers = [layers]
var collection = {type: 'FeatureCollection', features: []};
layers.forEach(function (layerID) {
var layer = tile.layers[layerID];
if (layer) {
for (var i = 0; i < layer.length; i++) {
var feature = layer.feature(i).toGeoJSON(150, 194, 9);
if (layers.length > 1) feature.properties.vt_layer = layerID;
collection.features.push(feature);
}
}
});
switch (extension) {
/*default:
drawMvt.geojson(tile.toGeoJSON(x,y,z)).fitZoom();
break;
case '.mbtiles':
drawMvt.geojson(tile.toGeoJSON()).fitZoom();
break;*/
case '.pbf':
drawMvt.geojson(JSON.parse(collection)).fitZoom();
break;
case '.geojson':
case '.json':
drawMvt.geojson(JSON.parse(data)).fitZoom();