This function reads attributes from a swath field.
Result = EOS_SW_READATTR(swathID, attrname, datbuf)
Returns SUCCEED (0) if successful and FAIL (-1) otherwise.
Swath id (long) returned by EOS_SW_CREATE or EOS_SW_ATTACH.
Attribute name (string).
A named variable that will contain the attribute values.
None.
In this example, we read a single precision (32-bit) floating-point attribute with the name "ScalarFloat":
status = EOS_SW_READATTR(swathID, "ScalarFloat", f32)
Introduced: 5.2