public static byte[] GetMap(MapSpecification map)
{
// Declare the map image array and get the map
MapImage[] mapImageArray = null;
try
{
mapImageArray = renderService.GetMap(map);
}
catch (System.Net.WebException) {
// Better error handling?
return(null);
}
// Careful return
if (null != mapImageArray && null != mapImageArray[0])
{
return(mapImageArray[0].MimeData.Bits);
}
else
{
return(null);
}
}
/// <summary>
/// This method will return a image representing a map
/// </summary>
/// <param name="location">result from the FindLocation method</param>
/// <param name="imageWidth">width of image used to display the map</param>
/// <param name="imageHeight">height of the image used to display the map</param>
/// <param name="zoom">floating point number > 0 respresent amount of zoom on the returned map</param>
/// <returns>Address</returns>
public System.Drawing.Image GetMap(Location location, int imageWidth, int imageHeight, double zoom)
{
MapImage[] mapImage;
System.Drawing.Bitmap theImage = null;
try
{
if (location == null)
{
throw new System.ArgumentNullException("Location cannot be null");
}
if (imageWidth <= 0)
{
throw new System.ArgumentNullException("Image width should be > then 0");
}
if (imageHeight <= 0)
{
throw new System.ArgumentNullException("Image Height should be > then 0");
}
if (zoom <= 0)
{
throw new System.ArgumentNullException("Zoom should be great then 0");
}
// now get a map
MapSpecification mapSpec = new MapSpecification();
//ViewByScale[] myViews = new ViewByScale[1];
MapView[] myViews = new MapView[1];
myViews[0] = location.BestMapView.ByHeightWidth;
mapSpec.Views = myViews;
mapSpec.DataSourceName = "MapPoint.NA";
mapSpec.Options = new MapOptions();
mapSpec.Options.Format = new ImageFormat();
mapSpec.Options.Format.Height = imageHeight;
mapSpec.Options.Format.Width = imageWidth;
mapSpec.Options.Zoom = zoom;
// setup pushpin
Pushpin[] ppArray = new Pushpin[1];
// set up a sample push pin
ppArray[0] = new Pushpin();
ppArray[0].IconDataSource = "MapPoint.Icons";
ppArray[0].IconName = "168";
ppArray[0].LatLong = location.LatLong;
ppArray[0].Label = "You are here";
ppArray[0].ReturnsHotArea = true;
// PinID contains the db key and the ADE NAME seperated by a tilde
ppArray[0].PinID = "where I am now";
mapSpec.Pushpins = ppArray;
mapImage = theMapPointRenderService.GetMap(mapSpec);
// let sure an MapImage was returned
if (mapImage != null && mapImage.Length > 0)
{
theImage = new System.Drawing.Bitmap(new System.IO.MemoryStream(mapImage[0].MimeData.Bits));
}
else
{
throw new System.Exception("Unable to build a map for this route");
}
}
catch (ArgumentNullException e)
{
throw e; // rethrow for app to handle
}
catch (Exception e)
{
throw e; // rethrow for app to handle
}
return(theImage);
}
