private string GetSNWDegree(string[] files)
{
double pixelArea = 0;
IInterestedRaster <Int16> timeResult = null;
IRasterOperator <Int16> roper = new RasterOperator <Int16>();
DataIdentify di = GetDataIdentify();
string outFileIdentify = GetStringArgument("OutFileIdentify");
string extinfo = GetStringArgument("extinfo");
timeResult = roper.Times(files, CreatRasterIndetifyId(files, "SNW", outFileIdentify, di, null, extinfo),
(dstValue, srcValue) =>
{
if (srcValue == 0)
{
return(dstValue);
}
else
{
return(++dstValue);
}
});
IRasterDataProvider dataProvider = timeResult.HostDataProvider;
if (dataProvider != null)
{
ArgumentProvider ap = new ArgumentProvider(dataProvider, null);
RasterPixelsVisitor <Int16> visitor = new RasterPixelsVisitor <Int16>(ap);
IPixelFeatureMapper <double> memresult = new MemPixelFeatureMapper <double>("0SDC", 1000, new Size(dataProvider.Width, dataProvider.Height), dataProvider.CoordEnvelope, dataProvider.SpatialRef);
IInterestedRaster <double> iir = null;
try
{
visitor.VisitPixel(new int[] { 1 }, (index, values) =>
{
if (values[0] == 0)
{
memresult.Put(index, 0);
}
else
{
pixelArea = RasterOperator <Int16> .ComputePixelArea(index / dataProvider.Width, dataProvider.CoordEnvelope.MaxY, dataProvider.ResolutionY);
memresult.Put(index, pixelArea * values[0]);
}
});
RasterIdentify id = new RasterIdentify();
id.ThemeIdentify = "CMA";
id.ProductIdentify = "SNW";
id.SubProductIdentify = "0SDC";
id.GenerateDateTime = DateTime.Now;
iir = new InterestedRaster <double>(id, new Size(dataProvider.Width, dataProvider.Height), dataProvider.CoordEnvelope.Clone());
iir.Put(memresult);
return(iir.FileName);
}
finally
{
if (iir != null)
{
iir.Dispose();
}
if (visitor != null)
{
visitor.Dispose();
}
if (timeResult != null)
{
timeResult.Dispose();
}
if (File.Exists(timeResult.FileName))
{
File.Delete(timeResult.FileName);
}
}
}
return(null);
}