protected override void GetSource( Envelope extent, int width, int height, DynamicLayer.OnImageComplete onComplete )
{
//List<MapPoint> mapPoints = new List<MapPoint>();
//List<Point> points = new List<Point>();
//int count = 0;
//while( count < 1000 )
//{
// mapPoints.Add(new MapPoint(extent.XMin + (extent.Width * (_random.Next(100)/100.00)),
// extent.YMin + (extent.Height * (_random.Next(100)/100.00)),
// extent.SpatialReference));
// count++;
//}
//foreach( MapPoint entry in mapPoints )
//{
// double M11 = ( double ) width / 360.00;
// double M22 = -( double ) height / 180.00;
// double M12 = 0.00;
// double M21 = 0.00;
// double offsetX = 180.00 * ( ( double ) width / 360.00 );
// double offsetY = 90.00 * ( ( double ) height / 180.0 );
// Matrix transform = new Matrix( M11, M12, M21, M22, offsetX, offsetY );
// points.Add( transform.Transform( new Point( entry.X, entry.Y ) ) );
//}
if( _timer != null )
_timer.Dispose();
_currentWidth = width;
_currentHeight = height;
_pngRenderer = new RainDropPngRenderer( _currentWidth, _currentHeight );
ParameterizedThreadStart starter = new ParameterizedThreadStart( ( pngRenderer ) =>
{
Stream imageStream = InitalizeImage( pngRenderer as RainDropPngRenderer );
Dispatcher.BeginInvoke( () =>
{
_image = new BitmapImage();
_image.SetSource( imageStream );
onComplete( _image, width, height, extent );
_timer = new Timer( timer_Tick, _pngRenderer, new TimeSpan( 0, 0, 0 ), TimeSpan.FromMilliseconds( RippleIntervalMilliSeconds ) );
} );
} );
new Thread( starter ).Start( _pngRenderer );
}
private Stream InitalizeImage( RainDropPngRenderer pngRenderer )
{
pngRenderer.Display( Background );
return pngRenderer.GetImageStream();
}