public async Task <SpatialDataSet> LoadDatasetFromResource(Uri uri)
{
var file = await Windows.Storage.StorageFile.GetFileFromApplicationUriAsync(uri);
if (file != null)
{
using (var fileStream = await file.OpenStreamForReadAsync())
{
//Read the spatial data file
var reader = new GeoJsonFeed();
return(await reader.ReadAsync(fileStream));
}
}
return(null);
}
/// <summary>
/// Not currently used
/// </summary>
/// <returns></returns>
public async Task <SpatialDataSet> LoadDatasetFromFileSystem()
{
//Create a FileOpenPicker to allow the user to select which file to import
var openPicker = new FileOpenPicker()
{
ViewMode = PickerViewMode.List,
SuggestedStartLocation = PickerLocationId.Desktop
};
openPicker.FileTypeFilter.Add(".json");
var file = await openPicker.PickSingleFileAsync();
if (file != null)
{
using (var fileStream = await file.OpenStreamForReadAsync())
{
//Read the spatial data file
var reader = new GeoJsonFeed();
return(await reader.ReadAsync(fileStream));
}
}
return(null);
}
private void GetFileSettings(string fileType, out BaseFeed feed, out string defaultExt, out string filters)
{
switch (fileType)
{
case "wkt":
feed = new WellKnownText();
defaultExt = ".txt";
filters = "Text (.txt)|*.txt";
break;
case "shp":
feed = new ShapefileReader();
defaultExt = ".shp";
filters = "Shapefile (.shp)|*.shp";
break;
case "gpx":
feed = new GpxFeed();
defaultExt = ".gpx";
filters = "Xml (.xml)|*.xml|Gpx (.gpx)|*.gpx";
break;
case "georss":
feed = new GeoRssFeed();
defaultExt = ".xml";
filters = "Xml (.xml)|*.xml|Rss (.rss)|*.rss";
break;
case "kml":
feed = new KmlFeed();
defaultExt = ".kml";
filters = "Kml (.kml)|*.kml|Kmz (.kmz)|*.kmz|Xml (.xml)|*.xml";
break;
case "kmz":
feed = new KmlFeed();
defaultExt = ".kmz";
filters = "Kmz (.kmz)|*.kmz|Zip (.zip)|*.zip";
break;
case "geojson":
feed = new GeoJsonFeed();
defaultExt = ".js";
filters = "JavaScript (.js)|*.js|Json (.json)|*.json";
break;
case "bing-xml":
feed = new BingDataSourceFeed(BingDataSourceType.XML);
defaultExt = ".xml";
filters = "Xml (.xml)|*.xml";
break;
case "bing-csv":
feed = new BingDataSourceFeed(BingDataSourceType.CSV);
defaultExt = ".csv";
filters = "CSV (*.csv)|*.csv|Text (*.txt)|*.txt|All files (*.*)|*.*";
break;
case "bing-tab":
feed = new BingDataSourceFeed(BingDataSourceType.TAB);
defaultExt = ".txt";
filters = "Text (*.txt)|*.txt|TSV (*.tsv)|*.tsv|All files (*.*)|*.*";
break;
case "bing-pipe":
feed = new BingDataSourceFeed(BingDataSourceType.PIPE);
defaultExt = ".txt";
filters = "Text (*.txt)|*.txt|All files (*.*)|*.*";
break;
default:
feed = null;
defaultExt = string.Empty;
filters = string.Empty;
break;
}
}
