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A Library for Handling
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Description:
This function returns the number of dimensions spaned by each value in a named column of a
Table, together with the length of each dimension. These are the values supplied when
the column was created using
astAddColumn.
Synopsis
void astColumnShape( AstTable
this, const char
column, int
mxdim, int ndim,
int dims )
Parameters:
this
Pointer to the Table.
column
The character string holding
the upper case name of the column. Trailing spaces are ignored.
mxdim
The length
of the " dims" array.
ndim
Pointer to an int in which to return the number of
dimensions spanned by values in the named column. This will be zero if the column
contains scalar values.
dims
Pointer to an array in which to return the length of
each dimension. Any excess trailing elements will be filled with the value 1.
Notes:
-
No error is reported if the requested column cannot be found in the given Table. A
value of zero is returned for " ndim" and the supplied values in " dims" are left
unchanged.
-
A value of zero is returned for " ndim" if an error occurs.
Copyright (C) 2021 East Asian Observatory
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- AST
A Library for Handling
World
Coordinate Systems
in Astronomy - Next→
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