[GRASSLIST:5443] Still problems with vectors in grass6 (long msg)

[Carlos Henrique Grohmann]

I'm still with problems with my vect maps, so now I'll post all msgs.

I have this USGS Open File Report (97-470D, 1999) with a shape file of the
political divisions of South America. I want to import it and make a vect map
of  South America without divisions. So I've imported it like this:


>v.in.ogr dsn=/mnt/cdrw_dvdrom/SAM/VIEWS/GEO output=cont5 layer=POL6_G
min_area=0.0001 >type=boundary snap=-1 -o 
>Over-riding projection check.
>Proceeding with import...
>Layer: POL6_G
>-----------------------------------------------------
>Building topology ...
>Registering lines: 
>337 primitives registered      
>Building areas: 
>
>196 areas built      
>177 isles built
>Attaching islands: 
>Attaching centroids: 
>Topology was built.
>Number of nodes     :   319
>Number of primitives:   337
>Number of points    :   0
>Number of lines     :   0
>Number of boundaries:   337
>Number of centroids :   0
>Number of areas     :   196
>Number of isles     :   177
>Number of incorrect boundaries   :   93
>Number of areas without centroid :   196
>-----------------------------------------------------
>
*** stuff ***
>
>Building topology ...
>Building areas: 
>
>196 areas built      
>182 isles built
>Attaching islands: 
>Topology was built.
>Number of nodes     :   319
>Number of primitives:   341
>Number of points    :   0
>Number of lines     :   4
>Number of boundaries:   337
>Number of centroids :   0
>Number of areas     :   196
>Number of isles     :   182
>Number of areas without centroid :   196
>
>Layer: POL6_G
>-----------------------------------------------------
>-----------------------------------------------------
>Building topology ...
>Registering lines: 
>337 primitives registered      
>Building areas: 
>
>196 areas built      
>182 isles built
>Attaching islands: 
>

And I got my map, with all countries in South America. Then I try to dissolve
all commom boundaries with:


>v.extract input=cont5 output=cont6 type=boundary layer=1 new=1 -d 
>Building topology ...
>Registering lines: 
>333 primitives registered      
>Building areas: 
>
>196 areas built      
>182 isles built
>Attaching islands: 
>Attaching centroids: 
>Topology was built.
>Number of nodes     :   319
>Number of primitives:   333
>Number of points    :   0
>Number of lines     :   0
>Number of boundaries:   333
>Number of centroids :   0
>Number of areas     :   196
>Number of isles     :   182
>Number of areas without centroid :   196
>
>Writing attributes ...
>Removing duplicate centroids ...Building topology ...
>Registering lines: 
>
>333 primitives registered      
>Building areas: 


And I got the same map! No dissolved commom boundaries..

So I did:



>v.extract input=cont5 output=cont6 type=boundary layer=1 new=1 -d 
>Building topology ...
>Registering lines: 
>333 primitives registered      
>Building areas: 
>
>196 areas built      
>182 isles built
>Attaching islands: 
>Attaching centroids: 
>Topology was built.
>Number of nodes     :   319
>Number of primitives:   333
>Number of points    :   0
>Number of lines     :   0
>Number of boundaries:   333
>Number of centroids :   0
>Number of areas     :   196
>Number of isles     :   182
>Number of areas without centroid :   196
>
>Writing attributes ...
>Removing duplicate centroids ...Building topology ...
>Registering lines: 
>
>333 primitives registered      
>Building areas: 

All the same, the boundaries are still there.


Once I get an error like this:

>bgerror failed to handle background error.
>    Original error: too many nested calls to Tcl_EvalObj (infinite loop?)
>    Error in bgerror: too many nested calls to Tcl_Eval (infinite loop?)

and then GRASS crashed.

Pleas help. I don't know what to do.

I'll leave the shp file in 

http://www.igc.usp.br/pessoais/guano/sam.html


thanks


-- 
+----------------------------------------------------------+
          Carlos Henrique Grohmann - Guano  
   Geologist M.Sc - Doctorate Student at IGc-USP - Brazil
        Linux User #89721  - guano at usp dot br
+----------------------------------------------------------+