r.poly and attributes

[Carla Elenz]

> 
> Susan Huse writes:
> > 
> > I just ran an r.poly -l on a VERY large raster file
> > The vector file has 29563 areas but 38100 atts.
> > There should be no labeled lines.  I got bazillions
> > of WARNING double labeled, all seem to the same label, 
> > so there is no att value conflicts.  I suspect that 
> > I have approximately 38100-29563=8537 double labels.
> > 
> > Do we know why r.poly overlabeled, and how I can 
> > get rid of the extras?
> > 
> 
> No, I don't know WHY r.poly does this, but I know it does.
> Getting rid of the labels however is very simple: go into v.digit 
> and change something (like killing one label). Then exit, and answer yes 
> on the question if you want to compress the attributes file. The next 
> time you run v.support there should be no more double labels. (This is 
> not in the manual; I put a similar question on the list last year and got 
> this answer).
> 
> Hope this helps,
> 
> Philip Verhagen
> -- 
> 
> 
> 			S t i c h t i n g  R A A P
> 
> 
> 		Regionaal Archeologisch Archiverings Projekt
> 
> adress: 	Plantage Muidergracht 14
> 	        1018 TV Amsterdam
> 	       	THE NETHERLANDS
> phone:          (31) 20 525 5835
> fax:		(31) 20 525 5834
> e-mail:		motte at xs4all.nl
> 

If the double labels are not the same (ie, if a new label was
added on top of another) does it keep the last and presumably
correct label?


Carla Elenz
Camp Grayling, MI 
elenz at osiris.cso.uiuc.edu