Can dbShape handle negative coordinates?

Hello,

I have been using dbGet and dbShape to identify and generate complicated rectilinear shapes in our chip floorplan. Everything was working great until this morning we realized we needed to have our chip 0,0 origin at die center and not at the lower left corner of the padring. I thought no problem I can easily shift or define the origin to be die center using the  -fplanOrigin center switch to the floorPlan and this did define the origin as desired. But my floorplan tcl code died while executing dbShape which had previously worked with a lower left chip origin.

It looks like the problem is that dbShape can not handle negative coordinates. For example this works:

encounter 60> dbshape [list 0 0 10 10] SIZE 10
{-10 -10 20 20}

but this does not

encounter 65> dbshape [list -1 -1 9 9] SIZE 10  
**ERROR: (ENCDBTCL-203):        '-1 -1 9 9' is not a valid option.
The correct command usage is:

Usage: dbShape [-help] [-d] [-step <step>] [-output <polygon|rect|hrect>]
             <shapeList> [AND <shapeList> | ANDNOT <shapeList> | OR <shapeList> | XOR <shapeList>
             | SIZE <value>| BBOX | MOVE {<dx> <dy>}] ...

Anybody see what I am missing? Maybe there is some trick for passing in the negative values into dbShape although interesting that the first command properly gave the SIZE 10 output box with correct coords, some being negative.

Thanks for any help anyone might be able provide.

Tom