[GRASS-dev] [GRASS GIS] #790: update files

[GRASS GIS]

#790: update files
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 Reporter:  martinl            |       Owner:  grass-dev at lists.osgeo.org
     Type:  task               |      Status:  new                      
 Priority:  normal             |   Milestone:  7.0.0                    
Component:  default            |     Version:  svn-trunk                
 Keywords:  update files/maps  |    Platform:  Unspecified              
      Cpu:  Unspecified        |  
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 see http://lists.osgeo.org/pipermail/grass-dev/2009-October/046747.html

 I am thinking how to implement direct write access to OGR datasources
 from the user point of view. One approach would be to implement global
 flag '--u' for updating existing vector map (i.e. OGR datasource).
 E.g.

 {{{
 v.out.ogr input=test dsn=. type=point -n
 v.external dsn=. layer=test output=test
 v.random out=test n=1000 --u
 }}}

 this could work also for native format

 {{{
 v.edit map=test tool=create
 v.random out=test n=1000 --u
 v.info test -t | grep points
 points=1000
 v.random out=test n=1000 --u
 v.info test -t | grep points
 points=2000
 }}}

 Or to add new parameters 'dns/format' which would be used only for OGR
 format, not for the native one.

 {{{
 v.random out=test n=1000 format=ESRI_Shapefile dns=.
 }}}

 Any ideas?

 Martin

 PS: Patch which implements '--u' flag (currently works only for vector
 maps: Vect_open_new() -> Vect_open_update()) available for testing.

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/790>
GRASS GIS <http://grass.osgeo.org>