[GRASS-dev] PROPOSAL: v.edit WAS: d.* commands

[Jachym Cepicky]

Hi,

On Thu, May 25, 2006 at 12:49:38AM +0300, Wolf Bergenheim wrote:
> 
> How about making a v.edit that would work a bit like this:
> 
> v.edit task=[add,del,move,etc..] what=[point,line,centroid]
>        db=[an SQL statement for UPDATE
>        args=[task and what specific]
> 
> so for example to add a new point one could call
> 
> v.edit task=add what=point db='name="survey location 73" depth=34' 
> args=x=25.242424,y=34.45634
> 
> and to add a line one could call
> 
> v.edit task=add what=line db='name="road #73" speed=70' 
> args=25.242424:34.45634,25.34343:34.34353,25.6754:34.6453
> 
> delete is trivial
> 
> v.edit task=del what=line args=345
> 				^This is the cat ID.
> 
> Just as an idea. If you like this I can start working on defining the 
> syntax so that one can edit all sorts of shapes. Another possibility would 
> be that it would read commands from a file (or stdin). Which would you 
> guys prefer?
> 
> If reading from a file then the syntax can be more complex (even XML if we 
> want it to).

This sounds great! I would suggest, that v.edit should be able to work
with both - command line arguments for easy editing, file (stdin) for
more complex ones.

I also thing, that XML is the way, GRASS should follow.

Jachym
-- 
Jachym Cepicky
e-mail: jachym.cepicky at centrum.cz
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