/// <summary>Fill header with keywords that describe image data.</summary>
/// <param name="head">The FITS header</param>
/// <exception cref="FitsException"> FitsException if the object does not contain valid image data.</exception>
internal override void FillHeader(Header head)
{
if (dataArray == null)
{
head.NullImage();
return ;
}
Type classname = ArrayFuncs.GetBaseClass(dataArray);
int[] dimens = ArrayFuncs.GetDimensions(dataArray);
if (dimens == null || dimens.Length == 0)
{
throw new FitsException("Image data object not array. ");
}
int bitpix;
// Changed from classname[dimens.Length] to classname[classname.IndexOf(".") + 1]
switch (classname.ToString())
{
case "System.Byte":
bitpix = 8;
break;
case "System.Int16":
bitpix = 16;
break;
case "System.Int32":
bitpix = 32;
break;
case "System.Int64":
bitpix = 64;
break;
case "System.Single":
bitpix = - 32;
break;
case "System.Double":
bitpix = - 64;
break;
default:
throw new FitsException("Invalid Object Type for FITS data:" +
classname.ToString());
}
// if this is neither a primary header nor an image extension,
// make it a primary header
head.Simple = true;
head.Bitpix = bitpix;
head.Naxes = dimens.Length;
for (int i = 1; i <= dimens.Length; i += 1)
{
if (dimens[i - 1] == - 1)
{
throw new FitsException("Unfilled array for dimension: " + i);
}
head.SetNaxis(i, dimens[dimens.Length - i]);
}
// suggested in .97 version: EXTEND keyword added before PCOUNT and GCOUNT.
head.AddValue("EXTEND", true, "Extension permitted"); // Just in case!
head.AddValue("PCOUNT", 0, "No extra parameters");
head.AddValue("GCOUNT", 1, "One group");
}
protected static Header ManufactureHeader(Array[] row, String[] columnNames,
Object[] tnull, int nRows)
{
Header hdr = new Header();
Object[][] table = new Object[1][];
table[0] = row;
new BinaryTable(table).FillHeader(hdr);
if(columnNames == null)
{
columnNames = new String[row.Length];
for(int i = 0; i < columnNames.Length; ++i)
{
columnNames[i] = "Column" + (i + 1);
}
}
for(HeaderCard c = hdr.NextCard(); c != null; c = hdr.NextCard());
Type t = null;
for(int i = 0; i < columnNames.Length; ++i)
{
if(!hdr.ContainsKey("TTYPE" + (i + 1)))
{
hdr.AddLine(new HeaderCard("TTYPE" + (i + 1), columnNames[i], null));
}
t = row[i].GetType();
if(t == typeof(short[]))
{
hdr.AddLine(new HeaderCard("TNULL" + (i + 1), (short)tnull[i], null));
}
else if(t == typeof(int[]))
{
hdr.AddLine(new HeaderCard("TNULL" + (i + 1), (int)tnull[i], null));
}
else if(t == typeof(long[]))
{
hdr.AddLine(new HeaderCard("TNULL" + (i + 1), (long)tnull[i], null));
}
}
hdr.RemoveCard("NAXIS2");
hdr.SetNaxis(2, nRows);
return hdr;
}
/// <summary> Update a FITS header to reflect the current state of the data.</summary>
internal override void FillHeader(Header h)
{
try
{
h.Xtension = "BINTABLE";
h.Bitpix = 8;
h.Naxes = 2;
h.SetNaxis(1, rowLen);
h.SetNaxis(2, nRow);
h.AddValue("PCOUNT", heap.Size, null);
h.AddValue("GCOUNT", 1, null);
Cursor c = h.GetCursor();
c.Key = "GCOUNT";
c.MoveNext();
c.Add("TFIELDS", new HeaderCard("TFIELDS", modelRow.Length, null));
for(int i = 0; i < modelRow.Length; i += 1)
{
if(i > 0)
{
h.PositionAfterIndex("TFORM", i);
}
FillForColumn(h, i, c);
}
}
catch(HeaderCardException)
{
Console.Error.WriteLine("Impossible exception");
}
}
/// <summary>Fill in a header with information that points to this data.</summary>
internal override void FillHeader(Header hdr)
{
try
{
hdr.Xtension = "TABLE";
hdr.Bitpix = 8;
hdr.Naxes = 2;
hdr.SetNaxis(1, rowLen);
hdr.SetNaxis(2, nRows);
Cursor c = (Cursor)hdr.GetEnumerator();
c.Key = "NAXIS2";
c.MoveNext();
c.Add("PCOUNT", new HeaderCard("PCOUNT", 0, "No group data"));
c.Add("GCOUNT", new HeaderCard("GCOUNT", 1, "One group"));
c.Add("TFIELDS", new HeaderCard("TFIELDS", nFields, "Number of fields in table"));
for(int i = 0; i < nFields; i += 1)
{
AddColInfo(i, c);
}
}
catch (HeaderCardException e)
{
Console.Error.WriteLine("ImpossibleException in fillHeader:" + e);
}
}