EOS_SW_WRITEATTR
Syntax | Return Value | Arguments | Keywords | Examples | Version History
This function writes/updates attributes in a swath. If the attribute does not exist, it is created. If it does exist, then the value is updated.
Syntax
Result = EOS_SW_WRITEATTR( swathID, attrname, datbuf [, COUNT=value] [, HDF_TYPE=value] )
Return Value
Returns SUCCEED (0) if successful and FAIL (–1) otherwise.
Arguments
swathID
Swath id (long) returned by EOS_SW_CREATE or EOS_SW_ATTACH.
attrname
Attribute name (string).
datbuf
Attribute values (long). If HDF_TYPE is specified, the attribute values are first converted to the type specified by HDF_TYPE before being stored.
Keywords
COUNT
Number of values to store in attribute (long).
HDF_TYPE
HDF data type of the attribute. See IDL and HDF Data Types for valid values.
Examples
In this example, we write a single precision (32 bit) floating point number with the name "ScalarFloat" and the value 3.14:
We can update this value by simply calling the function again with the new value:
Version History
