Hello Markus
Unfortunely, I get this error when I run other datasets. In this case, a landCover with all CELLS and spatial resolution of 30. The problem is that North carolina sample is too small.
r.to.vect -v input=FULL@PERMANENT output=FULL feature=area
I get this:
Default driver / database set to:
driver: dbf
database: $GISDBASE/$LOCATION_NAME/$MAPSET/dbf/
Extracting areas...
Building topology for vector map <PT_National_2000_FULL>...
R4243000ERROR: G_realloc: unable to allocate 16976004 bytes at struct_alloc.c:133

It has created a vector but I cannot display and I cannot use v.info (it says that I need to build topology).
And If I try to build topology I get and error and before this warning:
Coor files of vector map <PT_National_2000_FULL@PERMANENT> is larger than it should be (241464079 bytes excess)

So my questions are:
1- Is any fix for this?
2- If not, is there any defined limit for a raster in order to be converted to vector?

Thanks
Antonio

Markus Neteler wrote:
2011/3/23 António Rocha <[email protected]>:
A couple of months ago I sent a few messages regarding a memorry error with
r.to.vect (it was allocating to many information and data). My question is,
sicne r.to.vect was not updated, is there any raster or vector lib update
that had any impact on this?

Did you post a test case? Best done with the North Carolina sample
data set. Otherwise it is hard to replicate...

Markus








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