private void WriteAboutFile(string dstFilename)
{
//写出dat文件的相关信息
IRasterDataProvider rd = GeoDataDriver.Open(dstFilename) as IRasterDataProvider;
try
{
if (rd != null)
{
MemoryRasterDataProvider mrd = rd as MemoryRasterDataProvider;
if (mrd == null)
{
return;
}
HdrFile hdr = mrd.ToHdrFile();
if (hdr != null)
{
string hdrfile = Path.Combine(Path.GetDirectoryName(dstFilename), Path.GetFileNameWithoutExtension(dstFilename) + ".hdr");
HdrFile.SaveTo(hdrfile, hdr);
}
}
}
finally
{
if (rd != null)
{
rd.Dispose();
}
}
}
private void button8_Click(object sender, EventArgs e)
{
string ndviFileName = @"E:\工程项目（台式服务器）\SMART\【控制】UI框架(新整理)\SMART\bin\Release\TEMP\BAG_NDVI_NULL_NULL_NULL_20120731101801_20120801101801_.dat";
ndviFileName = @"E:\工程项目（台式服务器）\SMART\【控制】UI框架(新整理)\SMART\bin\Release\Workspace\BAG\2012-08-01\栅格产品\BAG_DBLV_EOST_MODIS_NULL_20120505024500.dat_";
IRasterDataProvider ndviDataProvider = GeoDataDriver.Open(ndviFileName) as IRasterDataProvider;
MemoryRasterDataProvider dataProvider = ndviDataProvider as MemoryRasterDataProvider;
//NDVISetValue setValue1 = (dataProvider).GetExtHeader<NDVISetValue>();
//double minNDVI = setValue1.MinNDVI;
//double maxNDVI = setValue1.MaxNDVI;
//double dst = maxNDVI - minNDVI;
double minNDVI = 0.17;
double maxNDVI = 0.81;
double dst = maxNDVI - minNDVI;
IPixelFeatureMapper <float> memResult = new MemPixelFeatureMapper <float>("BPCD", 1000, new Size(ndviDataProvider.Width, ndviDataProvider.Height), ndviDataProvider.CoordEnvelope, ndviDataProvider.SpatialRef);
ArgumentProvider ap = new ArgumentProvider(ndviDataProvider, null);
RasterPixelsVisitor <float> visitor = new RasterPixelsVisitor <float>(ap);
visitor.VisitPixel(new int[] { 1 }, (index, values) =>
{
if (values[0] == -9999f)
{
memResult.Put(index, -9999);
}
else if (dst == 0)
{
memResult.Put(index, -9999);
}
else
{
memResult.Put(index, (float)((values[0] - minNDVI) / dst));
}
});
RasterIdentify id = new RasterIdentify(ndviFileName);
IInterestedRaster <float> iirNDVI = new InterestedRaster <float>(id, new Size(dataProvider.Width, dataProvider.Height), dataProvider.CoordEnvelope.Clone());
iirNDVI.Put(memResult);
iirNDVI.Dispose();
ndviDataProvider.Dispose();
dataProvider.Dispose();
}
