all files / mapbox-gl-draw/src/lib/ move_feature.js

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
1×
 
1×
41×
 
149×
92×
41×
 
41×
5×
 
 
36×
18×
 
 
18×
16×
 
 
2×
2×
 
 
 
const Constants = require('../constants');
 
module.exports = function(feature, lngDelta, latDelta) {
  const featureCoordinates = feature.getCoordinates();
 
  const moveCoordinate = (coord) => [coord[0] + lngDelta, coord[1] + latDelta];
  const moveRing = (ring) => ring.map(coord => moveCoordinate(coord));
  const moveMultiPolygon = (multi) => multi.map(ring => moveRing(ring));
 
  if (feature.type === Constants.geojsonTypes.POINT) {
    return feature.incomingCoords(moveCoordinate(featureCoordinates));
  }
 
  if (feature.type === Constants.geojsonTypes.LINE_STRING || feature.type === Constants.geojsonTypes.MULTI_POINT) {
    return feature.incomingCoords(featureCoordinates.map(moveCoordinate));
  }
 
  if (feature.type === Constants.geojsonTypes.POLYGON || feature.type === Constants.geojsonTypes.MULTI_LINE_STRING) {
    return feature.incomingCoords(featureCoordinates.map(moveRing));
  }
 
  if (feature.type === Constants.geojsonTypes.MULTI_POLYGON) E{
    return feature.incomingCoords(featureCoordinates.map(moveMultiPolygon));
  }
};