void ekuced_c ( SpiceInt handle,
SpiceInt segno,
SpiceInt recno,
ConstSpiceChar * column,
SpiceInt nvals,
ConstSpiceDouble * dvals,
SpiceBoolean isnull )
Update a double precision column entry in a specified EK record.
EK
EK
FILES
UTILITY
Variable I/O Description
-------- --- --------------------------------------------------
handle I Handle attached to EK file.
segno I Index of segment containing record.
recno I Record in which entry is to be updated.
column I Column name.
nvals I Number of values in new column entry.
dvals I Double precision values comprising new column entry.
isnull I Flag indicating whether column entry is null.
handle is a file handle attached to an EK open for
write access.
segno is the index of the segment containing the column
entry to be updated. EK segment numbers range from
0 to N-1, where N is the number of segments
in the kernel.
recno is the index of the record containing the column
entry to be updated. This record number is
relative to the start of the segment indicated by
segno; the first record in the segment has index 0.
column is the name of the column containing the entry to
be updated.
nvals,
dvals are, respectively, the number of values to insert into
the specified column and the set of values
themselves. The data values are written in to the
specifed column and record.
If the column has fixed-size entries, then nvals
must equal the entry size for the specified column.
For columns with variable-sized entries, the size
of the new entry need not match the size of the
entry it replaces. In particular, the new entry
may be larger.
isnull is a logical flag indicating whether the entry is
null. If isnull is SPICEFALSE, the column entry
defined by nvals and dvals is added to the
specified kernel file.
If isnull is SPICETRUE, nvals and ivals are ignored.
The column entry is marked as a null value.
The contents of the column entry are undefined.
If the column has fixed-length, variable-size
entries, the number of entries is considered to
be 1.
The new entry may be null even though it replaces
a non-null value, and vice versa.
None. See $Particulars for a description of the effect of this
routine.
None.
1) If handle is invalid, the error will be diagnosed by routines
called by this routine.
2) If segno is out of range, the error will diagnosed by routines
called by this routine.
3) If column is not the name of a declared column, the error
will be diagnosed by routines called by this routine.
4) If column specifies a column of whose data type is not
double precision, the error SPICE(WRONGDATATYPE) will be
signaled.
5) If recno is out of range, the error will diagnosed by routines
called by this routine.
6) If the specified column has fixed-size entries and nvals
does not match this size, the error will diagnosed by routines
called by this routine.
7) If the specified column has variable-size entries and nvals
is non-positive, the error will diagnosed by routines
called by this routine.
8) If an attempt is made to add a null value to a column that
doesn't take null values, the error will diagnosed by routines
called by this routine.
9) If COLUMN specifies a column of whose class is not
a double precision class known to this routine, the error
SPICE(NOCLASS) will be signaled.
10) If an I/O error occurs while reading or writing the indicated
file, the error will be diagnosed by routines called by this
routine.
11) If the input column name string pointer is null, the error
SPICE(NULLPOINTER) will be signaled.
12) If the input column name string has length zero, the error
SPICE(EMPTYSTRING) will be signaled.
See the EK Required Reading for a discussion of the EK file
format.
This routine operates by side effects: it modifies the named
EK file by adding data to the specified record in the specified
column. Data may be added to a segment in random order; it is not
necessary to fill in columns or rows sequentially. Data may only
be added one logical element at a time. Partial assignments of
logical elements are not supported.
Since columns of data type TIME are implemented using double
precision column classes, this routine may be used to update
columns of type TIME.
1) Replace the value in the third record of the column DCOL in
the fifth segment of an EK file designated by HANDLE. Set
the new value to 999..
#include <SpiceUsr.h>
.
.
.
ekuced_c ( handle, 4, 2, "DCOL", 1, 999.0, SPICEFALSE );
2) Same as (1), but this time add a null value. The argument
999. is ignored because the null flag is set to SPICETRUE
#include <SpiceUsr.h>
.
.
.
ekuced_c ( handle, 4, 2, "DCOL", 1, 999.0, SPICETRUE );
3) Replace the entry in the third record of the column DARRAY in
the fifth segment of an EK file designated by HANDLE. Set
the new value using an array DBUFF of 10 d.p. values.
#include <SpiceUsr.h>
.
.
.
ekuced_c ( handle, 4, 2, "DARRAY", 10, dbuff, SPICEFALSE );
None.
None.
N.J. Bachman (JPL)
-CSPICE Version 1.0.0, 28-AUG-2001 (NJB)
replace d.p. entry in an EK column
replace time entry in an EK column
Link to routine ekuced_c source file ekuced_c.c
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