public void Render(System.Drawing.Graphics g, QuickTransformArgs quickTransform)
{
Envelope currentExtent = _environment.ExtentOfProjectionCoord;
if (!currentExtent.IsInteractived(_class.FullEnvelope))
{
return;
}
IMapRuntime runtime = _environment as IMapRuntime;
IRasterDataSource ds = _class.DataSource as IRasterDataSource;
enumCoordinateType coordType = ds.GetCoordinateType();
Envelope evp = null;
if (coordType == enumCoordinateType.Geographic)
{
evp = ToGeoEnvelope(runtime, currentExtent);
}
Bitmap bm = ds.Reader.Read(evp, runtime.Host.CanvasSize.Width, runtime.Host.CanvasSize.Height);
if (bm != null)
{
g.DrawImage(bm, 0, 0);
}
}
public RasterClass(IRasterDataSource datasource)
{
_dataSource = datasource;
Init();
}
public RasterClass(string url)
{
_dataSource = new RasterDataSource(url);
Init();
}
