public async Task<Image> GetStaticMapImageForCenterPushPin(MapRequest mapRequest)
{
var mapCenterPushPin = mapRequest.CenterPushpin;
var mapCenterPoint = mapCenterPushPin.Coordinate;
var mapDescription = mapRequest.MapDescription;
var centerPoint = string.Format("{0},{1}", mapCenterPoint.Latitude, mapCenterPoint.Longitude);
var mapPathParams = new SortedList<int, string>
{
{ 1, mapDescription.ImagerySet.ToString() },
{ 2, centerPoint },
{ 3, mapDescription.ZoomLevel.ToString() }
};
var mapImageQueryArgs = new List<KeyValuePair<string, string>>();
AddDisplayPushpins(mapRequest, mapImageQueryArgs);
AddMapSizeQueryArguments(mapDescription, mapImageQueryArgs);
AddDeclutterPinsQueryArguments(mapDescription.DeclutterPins, mapImageQueryArgs);
AddMapKeyQueryArguments(this.BingAPIKey, mapImageQueryArgs);
var mapImage = await this.restClient.DownloadImage(BingRestImageryRoadmapsEndpoint, mapPathParams, mapImageQueryArgs);
return mapImage.ReSize(mapDescription.MapImageScaleFactor);
}
public async Task<Stream> GenerateMapStream(MapRequest mapDescriptionRequest)
{
var stream = new MemoryStream();
using (var mapImage = await this.GenerateMapImage(mapDescriptionRequest))
{
mapImage.Save(stream, mapDescriptionRequest.MapDescription.ImageFormat);
}
return stream;
}
/// <inheritdoc />
public async Task<byte[]> GenerateMap(
MapRequest mapDescriptionRequest)
{
byte[] mapImageBytes;
using (var mapImage = await this.GenerateMapImage(mapDescriptionRequest))
{
mapImageBytes = mapImage == null ? null : mapImage.ToByteArray(mapDescriptionRequest.MapDescription.ImageFormat);
}
return mapImageBytes;
}
private static void AddDisplayPushpins(MapRequest mapRequest, List<KeyValuePair<string, string>> mapImageQueryArgs)
{
//If pushping presented and want them to be printed. what do do for map area?
IEnumerable<MapPushpin> displayPushpins = null;
if (mapRequest.Pushpins != null)
{
displayPushpins = mapRequest.Pushpins.Where(pp => !pp.HidePushpin);
}
if (displayPushpins != null || mapRequest.CenterPushpin != null)
{
AddPushPinQueryArgumentsWithLabels(displayPushpins, mapRequest.CenterPushpin, mapImageQueryArgs);
}
}
public async Task<Image> GetStaticMapImage(MapBoundingBox mapAreaBoundingBox, MapRequest mapRequest)
{
var mapDescription = mapRequest.MapDescription;
var mapPathParams = new SortedList<int, string> { { 1, mapDescription.ImagerySet.ToString() } };
var mapImageQueryArgs = new List<KeyValuePair<string, string>>();
AddMapSizeQueryArguments(mapDescription, mapImageQueryArgs);
AddMapAreaQueryArguments(mapAreaBoundingBox, mapImageQueryArgs);
AddDisplayPushpins(mapRequest, mapImageQueryArgs);
AddMapKeyQueryArguments(this.BingAPIKey, mapImageQueryArgs);
var mapImage = await this.restClient.DownloadImage(BingRestImageryRoadmapsEndpoint, mapPathParams, mapImageQueryArgs);
return mapImage.ReSize(mapDescription.MapImageScaleFactor);
}
/// <inheritdoc />
public async Task<Image> GenerateMapImage(
MapRequest mapDescriptionRequest)
{
if (mapDescriptionRequest == null)
{
throw new ArgumentNullException("mapDescriptionRequest");
}
if (mapDescriptionRequest.MapDescription == null)
{
throw new NoNullAllowedException("MapDescription");
}
List<MapPoint> pushpinCoordinates = null;
MapBoundingBox mapAreaBoundingBox = null;
Image mapImage = null;
if (mapDescriptionRequest.MapBoundingBoxType == MapBoundingBoxType.BestFitPoints)
{
if (mapDescriptionRequest.Pushpins == null || !mapDescriptionRequest.Pushpins.Any())
{
throw new ArgumentNullException("MapBoundingBoxType.BestFitPushPin doesnt allow mapDescriptionRequest.Pushpins to be null.");
}
if (mapDescriptionRequest.Pushpins.Count() == 1)
{
throw new NotSupportedException("MapBoundingBoxType.BestFitPoints must have more than or equal to two points. Change to MapBoundingBoxType.CenterPushPin if you want center point and zoom level based besetfit view.");
}
var pushpinList = mapDescriptionRequest.Pushpins.ToList();
pushpinCoordinates = pushpinList.Select(pp => pp.Coordinate).ToList();
mapAreaBoundingBox = this.mapCalculations.CalculateBoundingBox(pushpinCoordinates);
mapImage = await this.imageryProvider.GetStaticMapImage(
mapAreaBoundingBox,
mapDescriptionRequest);
var customPushpins = mapDescriptionRequest.Pushpins.Where(pp => pp.CustomPushpinIcon != null);
if (customPushpins.Any())
{
var mapMetadata =
await this.imageryProvider.GetStaticMapMetaData(mapAreaBoundingBox, mapDescriptionRequest);
var mapShapeLayer = await this.mapShapeLayerDrawing.DrawShapeLayerAsync(mapDescriptionRequest.Geometry, mapAreaBoundingBox, mapDescriptionRequest.MapDescription);
var mapLayers = new List<Image>();
if (mapShapeLayer != null)
{
mapLayers.Add(mapShapeLayer);
}
var pushpinMapLayer = this.mapLayerDrawing.GetMapLayer(mapMetadata, mapDescriptionRequest);
mapLayers.Add(pushpinMapLayer);
mapImage = this.MergeMapLayers(mapImage, mapLayers);
}
}
else if (mapDescriptionRequest.MapBoundingBoxType == MapBoundingBoxType.ExplicitBoundingBox)
{
if (mapDescriptionRequest.MapExplicitBoundingBox == null)
{
throw new ArgumentNullException("MapExplicitBoundingBox cant be null when using MapBoundingBoxType.ExplicitBoundingBox mode.");
}
var mapLayers = new List<Image>();
mapAreaBoundingBox = mapDescriptionRequest.MapExplicitBoundingBox;
mapImage = await this.imageryProvider.GetStaticMapImage(
mapAreaBoundingBox,
mapDescriptionRequest);
var mapShapeLayer = await this.mapShapeLayerDrawing.DrawShapeLayerAsync(mapDescriptionRequest.Geometry, mapAreaBoundingBox, mapDescriptionRequest.MapDescription);
if (mapShapeLayer != null)
{
mapLayers.Add(mapShapeLayer);
}
mapImage = this.MergeMapLayers(mapImage, mapLayers);
}
else if (mapDescriptionRequest.MapBoundingBoxType == MapBoundingBoxType.CenterPushPin)
{
if (mapDescriptionRequest.CenterPushpin == null)
{
throw new ArgumentNullException("Center Pushpin cant be null when using MapBoundingBoxType.CenterPushPin mode.");
}
mapImage = await this.imageryProvider.GetStaticMapImageForCenterPushPin(mapDescriptionRequest);
}
else
{
throw new NotSupportedException("Unsupported MapBoundingBoxType");
}
mapImage.Save(@"D:\Temp\MapImages\" + Guid.NewGuid() + "." + mapDescriptionRequest.MapDescription.ImageFormat, mapDescriptionRequest.MapDescription.ImageFormat);
return mapImage;
}
public Image GetMapLayer(IMapMetadata analyticMapMetadata, MapRequest mapRequest)
{
MapDescription mapDescription = mapRequest.MapDescription;
IEnumerable<MapPushpin> pushpinDescriptions = mapRequest.Pushpins;
if (pushpinDescriptions == null || !pushpinDescriptions.Any())
{
throw new ArgumentNullException("pushpinDescriptions");
}
if (analyticMapMetadata == null)
{
throw new ArgumentNullException("analyticMapMetadata");
}
if (mapDescription == null)
{
throw new ArgumentNullException("mapDescription");
}
var scaleFactor = mapDescription.MapImageScaleFactor;
var width = (int)(analyticMapMetadata.MapWidth * scaleFactor);
var height = (int)(analyticMapMetadata.MapHeight * scaleFactor);
var image = new Bitmap(width, height);
using (var g = Graphics.FromImage(image))
{
g.Clear(Color.Transparent);
foreach (var pushPinDescription in pushpinDescriptions.OrderBy(pp => pp.Zindex))
{
var pushPinMetadata = this.GetPushpinMetadata(pushPinDescription.Coordinate, analyticMapMetadata);
if (pushPinMetadata == null)
{
continue;
}
var pushPinImage = this.GetPushPinImage(
pushPinDescription.CustomPushpinIcon,
pushPinDescription.Label,
mapDescription);
if (pushPinImage == null)
{
continue;
}
var pushPinOffsetX = GetPushPinOffsetX(pushPinMetadata, scaleFactor, pushPinImage);
var pushPinOffsetY = GetPushPinOffsetY(
pushPinMetadata,
scaleFactor,
pushPinImage);
g.DrawImage(pushPinImage, pushPinOffsetX, pushPinOffsetY, pushPinImage.Width, pushPinImage.Height);
}
g.Flush();
}
return image;
}
public async Task<IMapMetadata> GetStaticMapMetaData(
MapBoundingBox mapAreaBoundingBox,
MapRequest mapRequest)
{
var mapDescription = mapRequest.MapDescription;
IEnumerable<MapPoint> mapPushPinCoordinates = mapRequest.Pushpins.Where(pp=>pp.CustomPushpinIcon != null).Select(p=>p.Coordinate);
if (mapAreaBoundingBox == null)
{
throw new ArgumentNullException("mapAreaBoundingBox");
}
var pushPinCoordinates = mapPushPinCoordinates as IList<MapPoint> ?? mapPushPinCoordinates.ToList();
if (mapPushPinCoordinates == null || !pushPinCoordinates.Any())
{
throw new ArgumentNullException("mapPushPinCoordinates");
}
var mapPathParams = new SortedList<int, string> { { 1, mapDescription.ImagerySet.ToString() } };
var metaDataQueryArgs = new List<KeyValuePair<string, string>>
{
new KeyValuePair<string, string>(
"o",
"json"),
new KeyValuePair<string, string>(
"mapmetadata",
"1"),
};
AddMapSizeQueryArguments(mapDescription, metaDataQueryArgs);
AddMapAreaQueryArguments(mapAreaBoundingBox, metaDataQueryArgs);
AddMapKeyQueryArguments(this.BingAPIKey, metaDataQueryArgs);
var bingMetaData = await this.GetBingMapMetadata(pushPinCoordinates, mapPathParams, metaDataQueryArgs);
if (bingMetaData == null)
{
return null;
}
// NOTE: do this in try catch incase ResourceSets or MetadataResources returned from BING are null.
try
{
return bingMetaData.ResourceSets.FirstOrDefault().MetadataResources.FirstOrDefault();
}
catch (Exception ex)
{
throw new InvalidDataException("invalid MetaData from Bing REST api", ex);
}
}
