mapscript API shapfileObj units

[Stephen Woodbridge]

You can't! This is because it is not encoded in the shapefile to start 
with. The only reason you can get it from the Layer pbject is because 
you can set it in the mapfile and then retrieve it layer into mapscript. 
The equivalent behavior would be to create a metadata file for each 
shapefile and fetch it from that.

-Steve

Kralidis,Tom [Burlington] wrote:
> Hi,
> 
> We have a script which utilizes the new mapscript geos functionality by
> applying a buffer to each shapeObj within a shapefileObj to output a new
> dataset.
> 
> My question is I would like to know the units of shapefileObj (or
> shapeObj).
> 
> The mapscript API has layerObj->{units} as a property, but I am not
> working within the layerObj context (i.e. I am not working on mapfiles,
> just datasets).
> 
> Any idea on how to fetch this info from the mapscript API without
> layerObj?  I've skimmed through
> http://mapserver.gis.umn.edu/docs/reference/mapscript/index_html as part
> of my investigation, but didn't find anything else (or course I may have
> glossed over something -- happens to me often!).
> 
> Thanks
> 
> ..Tom