update files

[martinl]

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.

[martinl]

update files

[neteler]

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[neteler]

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[neteler]

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[martinl]

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[martinl]

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