/// <summary>Read the RandomGroupsData.</summary>
public override void Read(ArrayDataIO str)
{
SetFileOffset(str);
try
{
str.ReadArray(dataArray);
}
catch (IOException e)
{
throw new FitsException("IO error reading Random Groups data " + e);
}
int pad = FitsUtil.Padding(TrueSize);
try
{
//System.IO.BinaryReader temp_BinaryReader;
System.Int64 temp_Int64;
//temp_BinaryReader = str;
temp_Int64 = str.Position; //temp_BinaryReader.BaseStream.Position;
temp_Int64 = str.Seek(pad) - temp_Int64; //temp_BinaryReader.BaseStream.Seek(pad, System.IO.SeekOrigin.Current) - temp_Int64;
int generatedAux = (int)temp_Int64;
}
catch (IOException)
{
throw new FitsException("IO error reading padding.");
}
}
/// <summary>
/// Method to read data
/// </summary>
/// <param name="i"></param>
public override void Read(ArrayDataIO i)
{
// Don't need to read null data (noted by Jens Knudstrup)
if (byteSize == 0)
{
return;
}
SetFileOffset(i);
//if(i is RandomAccess)
if (i.CanSeek)
{
//tiler = new ImageDataTiler(this, (RandomAccess) i, ((RandomAccess) i).FilePointer, dataDescription);
tiler = new ImageDataTiler(this, (RandomAccess)i, ((Stream)i).Position, dataDescription);
try
{
double pos = i.Position;
//pos = i.Seek((int)byteSize) - pos;
i.Seek(byteSize);
}
catch (IOException e)
{
throw new FitsException("Unable to skip over data:" + e);
}
}
else
{
dataArray = ArrayFuncs.NewInstance(dataDescription.type, dataDescription.dims);
try
{
i.ReadArray(dataArray);
}
catch (IOException e)
{
throw new FitsException("Unable to read image data:" + e);
}
tiler = new ImageDataTiler(this, null, 0, dataDescription);
}
int pad = FitsUtil.Padding(TrueSize);
try
{
long pos = i.Seek(pad);
if (pos != pad)
{
throw new FitsException("Error skipping padding");
}
}
catch (IOException e)
{
throw new FitsException("Error reading image padding:" + e);
}
}