Experimental Physics and
Industrial Control System

[email protected] (Andy Kozubal) · Fri, 16 Feb 1996 14:50:49 -0700

We are using AR to store a large number of waveforms.  The database records define
the array type (FTVL) as either USHORT or UCHAR.  However, AR converts these to
type `float' on output to the archive files.  This conversion uses much more disk
space than we would like.  Is there a way to force the output type to be `unsigned
short' or `unsigned char' (or even `short' or `char')? 

IDL/pvwave has a similar problem.  The caget() function converts USHORT to type `float' .
We can handle this with something like x = fix (caget('c1071its')), but this seems
like an inefficient way to handle the problem.

On a related subject--I noticed that db_access.h and dbFldTypes.h (in base/include) 
define the "DBF_" types differently.  After browsing through the base and extensions 
source code, I found some code includes db_access.h whereas some code includes 
dbAccess.h, which in turn includes dbFldTypes.h.  Which is correct?

|=======================================================================|
| Andy Kozubal   (DX-7)			| E-mail: [email protected]	|
| Mail Stop P942			|				|
| Los Alamos National Laboratory	| Phone: (505) 667-6508		|
| Los Alamos, New Mexico 87545		|				|
|=======================================================================|

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System