Examples with Polygon com.mapbox.geojson.Polygon used on opensource projects

Example 1 with Polygon

use of com.mapbox.geojson.Polygon in project mapbox-plugins-android by mapbox.

the class GeoJsonPlugin method parseGeoJsonString.

/**
 * @param geoJson String of the GeoJSON file
 * @return DataModel list of polylines, polygons, and point with bounded
 */
private DataModel parseGeoJsonString(String geoJson) {
    int pointCount = 0;
    DataModel dataModel = new DataModel();
    LatLngBounds.Builder builder = new LatLngBounds.Builder();
    FeatureCollection featureCollection = FeatureCollection.fromJson(geoJson);
    List<Feature> listFeature = featureCollection.features();
    for (Feature feature : listFeature) {
        String featureType = feature.geometry().type();
        if (!TextUtils.isEmpty(featureType)) {
            if (featureType.equalsIgnoreCase("LineString")) {
                List<LatLng> latLngs = new ArrayList<>();
                LineString lineString = (LineString) feature.geometry();
                List<Point> coordinates = lineString.coordinates();
                for (Point position : coordinates) {
                    LatLng latLng = new LatLng(position.latitude(), position.longitude());
                    latLngs.add(latLng);
                    pointCount++;
                    builder.include(latLng);
                }
                PolyData polylinePolyData = new PolyData();
                polylinePolyData.setPoints(latLngs);
                polylinePolyData.setType(featureType);
                dataModel.addPolyline(polylinePolyData);
            } else if (featureType.equalsIgnoreCase("Point")) {
                Point point = (Point) feature.geometry();
                if (point != null) {
                    LatLng latLng = new LatLng(point.latitude(), point.longitude());
                    MarkerData markerData = new MarkerData();
                    markerData.setPoint(latLng);
                    markerData.setProperties(feature.properties());
                    dataModel.addMarker(markerData);
                    pointCount++;
                    builder.include(latLng);
                }
            } else if (featureType.equalsIgnoreCase("Polygon")) {
                List<LatLng> latLngs = new ArrayList<>();
                Polygon polygon = (Polygon) feature.geometry();
                List<Point> listPosition = polygon.coordinates().get(0);
                for (Point position : listPosition) {
                    LatLng latLng = new LatLng(position.latitude(), position.longitude());
                    latLngs.add(latLng);
                    pointCount++;
                    builder.include(latLng);
                }
                PolyData polygonPolyData = new PolyData();
                polygonPolyData.setPoints(latLngs);
                polygonPolyData.setType(featureType);
                dataModel.addPolygon(polygonPolyData);
            } else {
            // TODO
            }
        }
    }
    if (pointCount > 1) {
        dataModel.setBounds(builder.build());
    }
    return dataModel;
}