private MapImage GetMapImage(esriImageReturnType returnType)
{
MapDescription mapDescription = ((AgsDataFrame)DataFrame).MapServerInfo.NewMapDescription(Extent);
mapDescription.SetAllLayersNotVisible();
for (int i = 0; i < _layerList.Count; ++i)
{
AgsLayer layer = _layerList[i];
string query = _queryList[i];
MapLayerInfo mapLayerInfo = layer.MapLayerInfo;
while (mapLayerInfo != null)
{
LayerDescription layerDescription = mapDescription.LayerDescriptions.First(ld => ld.LayerID == mapLayerInfo.LayerID);
layerDescription.Visible = true;
if (!String.IsNullOrEmpty(query))
{
layerDescription.DefinitionExpression = query;
}
mapLayerInfo = mapLayerInfo.Parent;
query = null;
}
}
ImageDescription imageDescription = new ImageDescription();
imageDescription.ImageDisplay = new ImageDisplay(Convert.ToInt32(Width * Resolution), Convert.ToInt32(Height * Resolution), DataFrame.Dpi * Resolution);
imageDescription.ImageType = new ImageType(returnType);
switch (ImageType)
{
case CommonImageType.Png:
imageDescription.ImageType.ImageFormat = esriImageFormat.esriImagePNG32;
if (TransparentBackground)
{
mapDescription.TransparentColor = mapDescription.BackgroundSymbol.Color;
}
break;
default:
imageDescription.ImageType.ImageFormat = esriImageFormat.esriImageJPG;
break;
}
return(_service.MapServer.ExportMapImage(mapDescription, imageDescription));
}
public ImageType(esriImageReturnType returnType)
: this(esriImageFormat.esriImageJPG, returnType)
{
}
public ImageType(esriImageFormat format, esriImageReturnType returnType)
{
ImageFormat = format;
ImageReturnType = returnType;
}
