internal void HandleCardImage(CardImage ci)
{
string key = ci.Key;
string val = ci.Value;
char alternative;
Transformation t = null;
if (key.StartsWith("WCSAXIS") || key.StartsWith("WCSNAME"))
{
alternative = ParseAlternative(ref key, 7);
t = alternative == '\0' ? _primaryTransformation : Alternative(alternative);
}
else if (ci.IsOneIndexForm("CRVAL") || ci.IsOneIndexForm("CRPIX") || ci.IsOneIndexForm("CDELT") ||
ci.IsOneIndexForm("CTYPE") || ci.IsOneIndexForm("CUNIT") || ci.IsOneIndexForm("CRDER") || ci.IsOneIndexForm("CSYER"))
{
alternative = ParseAlternative(ref key, 5);
t = alternative == '\0' ? _primaryTransformation : Alternative(alternative);
}
else if (ci.IsTwoIndexForm("PC") || ci.IsTwoIndexForm("CD") || ci.IsTwoIndexForm("PV") || ci.IsTwoIndexForm("PS"))
{
alternative = ParseAlternative(ref key, 2);
t = alternative == '\0' ? _primaryTransformation : Alternative(alternative);
}
if (t != null)
{
// we removed the alternate coordinate letter from the key. we need to update ci
// with the new key as transformations are not aware of the althernatives letter
CardImage copy = ci.Copy() as CardImage;
copy.Key = key;
t.HandleCardimage(copy);
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
#region privates and internals
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
internal void HandleCardimage(CardImage ci)
{
string key = ci.Key;
string value = ci.Value;
int i, j;
if (ci.IsOneIndexForm("WCSAXIS"))
{
_numWCSAxes = int.Parse(value);
}
else if (ci.IsOneIndexForm("WCSNAME"))
{
_name = value;
}
else if (ci.IsOneIndexForm("CRVAL"))
{
AddElementToVectorElementList(ci, ref _worldRefElements);
}
else if (ci.IsOneIndexForm("CRPIX"))
{
AddElementToVectorElementList(ci, ref _pixelRefElements);
}
else if (ci.IsOneIndexForm("CDELT"))
{
AddElementToVectorElementList(ci, ref _pix2physElements);
}
else if (ci.IsOneIndexForm("CRDER"))
{
AddElementToVectorElementList(ci, ref _randErrElements);
}
else if (ci.IsOneIndexForm("CSYER"))
{
AddElementToVectorElementList(ci, ref _sysErrElements);
}
else if (ci.IsOneIndexForm("CTYPE"))
{
i = ParseIndex(key);
WCSAxis a = GetOrCreateAxis(i);
a.Type = value;
}
else if (ci.IsOneIndexForm("CUNIT"))
{
i = ParseIndex(key);
WCSAxis a = GetOrCreateAxis(i);
a.Unit = value;
}
else if (ci.IsTwoIndexForm("CROTA"))
{
AddElementToVectorElementList(ci, ref _oldRotationElements);
}
else if (ci.IsTwoIndexForm("PC"))
{
AddElementToMatrixRowList(ci, ref _PCij);
}
else if (ci.IsTwoIndexForm("CD"))
{
AddElementToMatrixRowList(ci, ref _PCij);
}
else if (ci.IsTwoIndexForm("PV"))
{
ParseTwoIndices(key, out i, out j);
WCSAxis a = GetOrCreateAxis(i);
a.AddNumericParam(j, double.Parse(value));
}
else if (ci.IsTwoIndexForm("PS"))
{
ParseTwoIndices(key, out i, out j);
WCSAxis a = GetOrCreateAxis(i);
a.AddTextParam(j, value);
}
}