How to use the @mapbox/vector-tile.VectorTileFeature.types function in @mapbox/vector-tile
To help you get started, we’ve selected a few @mapbox/vector-tile examples, based on popular ways it is used in public projects.
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tangrams / tangram / src / sources / mvt.js View on Github 
geometry.coordinates = coordinates;
if (VectorTileFeature.types[feature.type] === 'Point') {
geometry.type = 'Point';
geometry.coordinates = geometry.coordinates[0][0];
}
else if (VectorTileFeature.types[feature.type] === 'LineString') {
if (coordinates.length === 1) {
geometry.type = 'LineString';
geometry.coordinates = geometry.coordinates[0];
}
else {
geometry.type = 'MultiLineString';
}
}
else if (VectorTileFeature.types[feature.type] === 'Polygon') {
geometry = decodeMultiPolygon(geometry); // un-flatten rings
}
layer_geojson.features.push(feature_geojson);
}
layers[l] = layer_geojson;
}
return layers;
}};
var geometry = feature_geojson.geometry;
var coordinates = feature.loadGeometry();
for (var r=0; r < coordinates.length; r++) {
var ring = coordinates[r];
for (var c=0; c < ring.length; c++) {
ring[c] = [
ring[c].x * scale,
ring[c].y * scale
];
}
}
geometry.coordinates = coordinates;
if (VectorTileFeature.types[feature.type] === 'Point') {
geometry.type = 'Point';
geometry.coordinates = geometry.coordinates[0][0];
}
else if (VectorTileFeature.types[feature.type] === 'LineString') {
if (coordinates.length === 1) {
geometry.type = 'LineString';
geometry.coordinates = geometry.coordinates[0];
}
else {
geometry.type = 'MultiLineString';
}
}
else if (VectorTileFeature.types[feature.type] === 'Polygon') {
geometry = decodeMultiPolygon(geometry); // un-flatten rings
}export function vectorTileFeatureToGeoJSON(vectorTileFeature, project) {
let coords = getCoordinates(vectorTileFeature);
const type = VectorTileFeature.types[vectorTileFeature.type];
const extent = vectorTileFeature.extent;
let i;
let j;
switch (vectorTileFeature.type) {
case 1:
coords = coords.map(pts => pts[0]);
project(coords, extent);
break;
case 2:
for (i = 0; i < coords.length; i++) {
project(coords[i], extent);
}
break;export function vectorTileFeatureToProp(vectorTileFeature, project) {
let coords = getCoordinates(vectorTileFeature);
const type = VectorTileFeature.types[vectorTileFeature.type];
const extent = vectorTileFeature.extent;
let i;
let j;
coords = classifyRings(coords);
for (i = 0; i < coords.length; i++) {
for (j = 0; j < coords[i].length; j++) {
project(coords[i][j], extent);
}
}
return coords.map(coordinates => ({
coordinates,
properties: vectorTileFeature.properties
}));
}
