/// <summary>
/// Export a portion of the Mandelbrot Set to a desired path.
/// </summary>
/// <param name="path">The path to the .png file.</param>
/// <param name="bitmapSize">The size of the bitmap to create</param>
public static async void ExportImageAsync(
string path,
Size bitmapSize,
ImageInfo imageInfo,
IExportImage iExportImage)
{
await Task.Run(() =>
{
var bitmap = Render(bitmapSize, imageInfo, iExportImage.ProgressBar, reportProgress: true);
iExportImage.OnSaveStart();
bitmap.Save(path);
bitmap.Dispose();
iExportImage.OnExportFinished(path);
});
}
/// <summary>
/// Create Bitmap From ESRI Dataset
/// </summary>
/// <param name="dataset">Dataset to generate an image from</param>
/// <param name="imageFormat">Output image format</param>
/// <param name="size">Size of output image</param>
/// <param name="resolution">Resolution of output image (dpi)</param>
/// <param name="background">Background color</param>
/// <param name="filename">Ouput filename</param>
public static void CreateBitmap(IDataset dataset, esriImageFormat imageFormat, Size size, ushort resolution, Color background, string filename)
{
ILayer layer = null;
switch (dataset.Type)
{
case esriDatasetType.esriDTFeatureClass:
IFeatureClass featureClass = (IFeatureClass)dataset;
switch (featureClass.FeatureType)
{
case esriFeatureType.esriFTDimension:
layer = new DimensionLayerClass();
break;
case esriFeatureType.esriFTAnnotation:
layer = new FeatureLayerClass();
IGeoFeatureLayer geoFeaureLayer = (IGeoFeatureLayer)layer;
geoFeaureLayer.DisplayAnnotation = true;
break;
case esriFeatureType.esriFTComplexEdge:
case esriFeatureType.esriFTComplexJunction:
case esriFeatureType.esriFTSimple:
case esriFeatureType.esriFTSimpleEdge:
case esriFeatureType.esriFTSimpleJunction:
layer = new FeatureLayerClass();
break;
}
if (layer == null)
{
return;
}
IFeatureLayer featureLayer = (IFeatureLayer)layer;
featureLayer.FeatureClass = featureClass;
break;
case esriDatasetType.esriDTRasterDataset:
layer = new RasterLayerClass();
IRasterLayer rasterLayer = (IRasterLayer)layer;
rasterLayer.CreateFromDataset((IRasterDataset)dataset);
break;
default:
string message = string.Format("[{0}] is not supported", dataset.Type.ToString());
throw new Exception(message);
}
if (layer == null)
{
return;
}
// Create In-memory Map
IMap map = new MapClass();
map.AddLayer(layer);
IActiveView activeView = (IActiveView)map;
IExport export = null;
tagRECT rect = new tagRECT();
// Set Format Specific Properties
switch (imageFormat)
{
case esriImageFormat.esriImageJPG:
export = new ExportJPEGClass();
IExportJPEG exportJpeg = (IExportJPEG)export;
exportJpeg.ProgressiveMode = false;
exportJpeg.Quality = 100;
break;
default:
throw new Exception("[" + imageFormat.ToString() + "] is not supported");
}
if (export == null)
{
throw new Exception("Failed to Created Exporter");
}
// Set Background
if ((export is IExportBMP) ||
(export is IExportGIF) ||
(export is IExportJPEG) ||
(export is IExportPNG) ||
(export is IExportTIFF))
{
IExportImage exportImage = (IExportImage)export;
exportImage.ImageType = esriExportImageType.esriExportImageTypeTrueColor;
exportImage.BackgroundColor = GeodatabaseUtility.ToESRIColor(background);
}
// Set Export Frame
rect = activeView.ExportFrame;
rect.left = 0;
rect.top = 0;
rect.right = size.Width;
rect.bottom = size.Height;
// Set Output Extent
IEnvelope envelope = new EnvelopeClass();
envelope.PutCoords(rect.left, rect.top, rect.right, rect.bottom);
export.PixelBounds = envelope;
export.Resolution = resolution;
export.ExportFileName = filename;
// Export map to image
int intHdc = export.StartExporting();
activeView.Output(intHdc, resolution, ref rect, null, null);
export.FinishExporting();
export.Cleanup();
// Clear Layers
map.ClearLayers();
// Release COM Objects
GeodatabaseUtility.ReleaseComObject(layer);
GeodatabaseUtility.ReleaseComObject(envelope);
GeodatabaseUtility.ReleaseComObject(map);
GeodatabaseUtility.ReleaseComObject(activeView);
GeodatabaseUtility.ReleaseComObject(export);
GC.Collect();
GC.WaitForPendingFinalizers();
}
