private void Disposed(IGeoDataDriver ldfDrv, IRasterDataProvider ldfPrd, IRasterBand ldfBand, IMvgDriver mvgDrv, IMvgDataProvider mvgPrd, IRasterBand mvgBand)
{
if (mvgBand != null)
{
mvgBand.Dispose();
}
if (mvgPrd != null)
{
mvgPrd.Dispose();
}
if (mvgDrv != null)
{
mvgDrv.Dispose();
}
if (ldfBand != null)
{
ldfBand.Dispose();
}
if (ldfPrd != null)
{
ldfPrd.Dispose();
}
if (ldfDrv != null)
{
ldfDrv.Dispose();
}
}
public unsafe void WriteMvgFileNormal()
{
// _fname = @"C:\工作\3.13\SNW_DBLV_FY3A_VIRR_1000M_NULL_P001_200911131356.mvg";
IGeoDataDriver drv = GeoDataDriver.GetDriverByName("MVG");
IRasterDataProvider prd = drv.Open(_fname, enumDataProviderAccess.ReadOnly) as IRasterDataProvider;
Assert.NotNull(prd);
IRasterBand band = prd.GetRasterBand(1);
Assert.NotNull(band);
Int16[] buffer = new Int16[prd.Width * prd.Height];
Console.WriteLine("prd.Width = " + prd.Width);
Console.WriteLine("prd.Height = " + prd.Height);
Console.WriteLine("band.Width = " + band.Width);
Console.WriteLine("band.Height= " + band.Height);
fixed(Int16 *ptr = buffer)
{
IntPtr bufferPtr = new IntPtr(ptr);
band.Read(0, 0, prd.Width, prd.Height, bufferPtr, enumDataType.Int16, prd.Width, prd.Height);
}
string dstFname = @"e:\mvg_writer.bin";
string mapInfo = "{1,1}:{110,35}:{0.01,0.01}";
Int16 valueCount = 2;
bool withHdr = true;
string values = "{ 0, 1 }";
string valueNames = "{120,99}";
IMvgDataProvider prdWriter = (drv as IRasterDataDriver).Create(dstFname, prd.Width, prd.Height, 1, enumDataType.Int16, "VALUECOUNT=" + valueCount, "VALUES=" + values,
"VALUENAMES=" + valueNames, "MAPINFO=" + mapInfo, "WITHHDR=" + withHdr.ToString()) as IMvgDataProvider;
IRasterBand bandWriter = prdWriter.GetRasterBand(1);
fixed(Int16 *ptr = buffer)
{
IntPtr bufferPtr = new IntPtr(ptr);
bandWriter.Write(0, 0, prd.Width, prd.Height, bufferPtr, enumDataType.Int16, prd.Width, prd.Height);
}
prd.Dispose();
drv.Dispose();
prdWriter.Dispose();
}
public void MvgToLdfFile()
{
_fname = @"E:\气象局项目\MAS二期\mvg文件\FOG_DBLV_FY3A_VIRR_1000M_DXX_P001_200911131354.mvg";
IGeoDataDriver drv = GeoDataDriver.GetDriverByName("MVG");
IRasterDataProvider prd = drv.Open(_fname, enumDataProviderAccess.ReadOnly) as IRasterDataProvider;
Assert.NotNull(prd);
IMvgDataProvider mvgPrd = prd as IMvgDataProvider;
MvgHeader mvgHeader = mvgPrd.Header;
Assert.NotNull(mvgHeader);
Console.WriteLine("mvgHeader.HeaderSize = " + mvgHeader.HeaderSize);
Console.WriteLine("mvgHeader.Width = " + mvgHeader.Width);
Console.WriteLine("mvgHeader.Height = " + mvgHeader.Height);
mvgPrd.ToLdfFile();
mvgPrd.Dispose();
prd.Dispose();
drv.Dispose();
}
public void CreatEmptyMvgFile()
{
Assert.That(_newFileName != null);
IRasterDataDriver driver = GeoDataDriver.GetDriverByName("MVG") as IRasterDataDriver;
Assert.NotNull(driver);
IMvgDriver drv = driver as IMvgDriver;
Assert.NotNull(drv);
int width = 2048;
int height = 3390;
string mapInfo = "{1,1}:{110,35}:{0.01,0.01}";
Int16 valueCount = 2;
bool withHdr = true;
string values = "{ 0, 1 }";
string valueNames = "{120,99}";
IMvgDataProvider prd = drv.Create(_newFileName, width, height, 1, enumDataType.Int16, "VALUECOUNT=" + valueCount, "VALUES=" + values,
"VALUENAMES=" + valueNames, "MAPINFO=" + mapInfo, "WITHHDR=" + withHdr.ToString()) as IMvgDataProvider;
Assert.NotNull(prd);
Assert.That(prd.BandCount == 1);
Assert.That(prd.DataType == enumDataType.Int16);
MvgHeader header = prd.Header;
Assert.True(File.Exists(_newFileName));
FileInfo fInfo = new FileInfo(_newFileName);
HdrFile hdr = (header as MvgHeader).ToHdrFile();
PrintHdrInfo(hdr);
prd.Dispose();
drv.Dispose();
Assert.True(File.Exists(_newFileName));
}
