/// <summary>
/// Consructor initislizing header,data
/// </summary>
/// <param name="hdr"></param>
/// <param name="datum"></param>
public BinaryTableHDU(Header hdr, Data datum)
: base((TableData)datum)
{
myHeader = hdr;
myData = datum;
table = (BinaryTable) datum;
}
/// <summary>
/// Create an ascii table header/data unit
/// </summary>
/// <param name="h">The template specifying the ascii table.</param>
/// <param name="d"> The FITS data structure containing the table data.</param>
/// <exception cref="FitsException"> FitsException if there was a problem with the header.</exception>
public AsciiTableHDU(Header h, Data d)
: base((TableData) d)
{
myHeader = h;
data = (AsciiTable) d;
myData = d;
}
/// <summary>Create a header which points to the given data object.</summary>
/// <param name="o">The data object to be described.</param>
/// <exception cref="FitsException"> FitsException if the data was not valid for this header.</exception>
public Header(Data o)
{
InitBlock();
o.FillHeader(this);
}
/// <summary>Make a header point to the given object.</summary>
/// <param name="odata">The random groups data the header should describe.</param>
internal static Header ManufactureHeader(Data d)
{
if (d == null)
{
throw new FitsException("Attempt to create null Random Groups data");
}
Header h = new Header();
d.FillHeader(h);
return h;
}
//internal Object dataArray;
/// <summary>Create an HDU from the given header and data</summary>
public RandomGroupsHDU(Header h, Data d)
{
myHeader = h;
myData = d;
}
/// <summary>Create a header that describes the given
/// image data.
/// </summary>
/// <param name="o">The image to be described.
/// </param>
/// <exception cref=""> FitsException if the object does not contain
/// valid image data.
///
/// </exception>
public static Header ManufactureHeader(Data d)
{
Header h = new Header();
d.FillHeader(h);
return h;
}
/// <summary>Build an image HDU using the supplied data.</summary>
/// <param name="obj">the data used to build the image.</param>
/// <exception cref=""> FitsException if there was a problem with the data.</exception>
public UndefinedHDU(Header h, Data d)
{
myData = d;
myHeader = h;
}
/// <summary>Create a header to match the input data.</summary>
public static Header ManufactureHeader(Data d)
{
Header hdr = new Header();
d.FillHeader(hdr);
Cursor c = hdr.GetCursor();
return hdr;
}
/// <summary>Create an HDU from the given Data.</summary>
/// <param name="datum">The data to be described in this HDU.</param>
public static BasicHDU MakeHDU(Data datum)
{
Header hdr = new Header();
datum.FillHeader(hdr);
return FitsFactory.HDUFactory(hdr, datum);
}
/// <summary> Create an ascii table header/data unit.</summary>
/// <param name="header">the template specifying the ascii table.</param>
/// <exception cref=""> FitsException if there was a problem with the header.</exception>
public AsciiTableHDU(Header h, Data d) : base((TableData)d)
{
myHeader = h;
data = (AsciiTable)d;
myData = d;
}
/// <summary>Build a binary table HDU from the supplied data.</summary>
/// <param name="data">the array used to build the binary table.</param>
/// <exception cref="FitsException"> If there was a problem with the data.</exception>
public static Header ManufactureHeader(Data data)
{
Header hdr = new Header();
data.FillHeader(hdr);
return hdr;
}
// change suggested in .99.5 version: Method made public from protected.
/// <summary>Given Header and data objects return the appropriate type of HDU.</summary>
public static BasicHDU HDUFactory(Header hdr, Data d)
{
if (d is ImageData)
{
return new ImageHDU(hdr, d);
}
else if (d is RandomGroupsData)
{
return new RandomGroupsHDU(hdr, d);
}
else if (d is AsciiTable)
{
return new AsciiTableHDU(hdr, d);
}
else if (d is BinaryTable)
{
return new BinaryTableHDU(hdr, d);
}
else if (d is UndefinedData)
{
return new UndefinedHDU(hdr, d);
}
return null;
}
/// <summary>Build an image HDU using the supplied data.</summary>
/// <param name="obj">the data used to build the image.</param>
/// <exception cref="FitsException">If there was a problem with the data.</exception>
public ImageHDU(Header h, Data d)
{
myData = d;
myHeader = h;
}
/// <summary>Create a header that describes the given image data.</summary>
/// <param name="o">The image to be described.</param>
/// <exception cref=""> FitsException if the object does not contain valid image data.</exception>
public static Header ManufactureHeader(Data d)
{
if (d == null)
{
return null;
}
Header h = new Header();
d.FillHeader(h);
return h;
}
/// <summary>Read in the Data object for this HDU.</summary>
/// <param name="stream">the stream from which the data is read.</param>
/// <exception cref="FitsException"> FitsException if the Data object could not be created from this HDU's Header</exception>
public virtual void ReadData(ArrayDataIO stream)
{
myData = null;
try
{
myData = ManufactureData();
}
finally
{
// if we cannot build a Data object, skip this section
if (myData == null)
{
try
{
SkipData(stream, myHeader);
}
catch(Exception)
{
}
}
}
myData.Read(stream);
}
/// <summary>Read out the HDU from the data stream. This
/// will overwrite any existing header and data components.
/// </summary>
public virtual void Read(ArrayDataIO stream)
{
myHeader = Header.ReadHeader(stream);
myData = myHeader.MakeData();
myData.Read(stream);
}
