> From: Ann W. Harrison
> At 10:57 AM 3/21/2002 +0000, mircostange wrote:
>
> >The issues is that we have developed a custom UDF to convert BLOBs
> >containing vector images into BLOBs containing bitmap images.
>
> Before going much further, I suggest that you find and read the
> section on blob filters in the doc set, and look at some of the
> sample filters in filters.c in the jrd module of the firebird code.

Blob filter can't be used because custom UDF has additional parameter
(scaling factor or something like that).

Or perhaps assign different blob type for different scale ? :-)

Ivan
http://www.volny.cz/iprenosil/interbase