Re: [GRASS-dev] Re: v.category: opt=del was changed
Hi, 2008/12/7 Hamish [EMAIL PROTECTED]: Maciek: default all categories should be selected. I don't see a reason to change the default behaviour in GRASS 7 either. Martin: new behaviour can be useful if you want to remove not all categories, but only selected one (well, you can always use v.edit for that). perhaps we should better define what the modules are supposed to do. v.edit is clearly for incisive/targeted edits to a vector map, so at the other end we could promote v.category as the general purpose/bulk category maintenance tool. This would mean less for learning curve required, and less opportunity for new user confusion. In the same vein I wonder if the new v.cat ids= option offers anything new; IMO such raw/low-level stuff should be held for advanced use in v.edit. e.g. the v.cat module description explains what the cat is by calling it a type of ID number. And then we provide both cat= and and ids= options. v.category seems to be designed to edit vector layer categories globally (all features in given layer). I have added 'id' parameter because of v.edit-based wxGUI digitizer. This part has been already removed from wxGUI. So not needed any more. From this perspective, 'id' parameter could be removed from v.category. If user want to add/delete category(ies) only for subset of features v.edit can be used. From this point of view I would suggest to remove 'id' parameter from v.category and change 'del' in G7 to delete categories globally in given layer. Martin -- Martin Landa landa.martin gmail.com * http://gama.fsv.cvut.cz/~landa * ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
[GRASS-dev] Re: v.category: opt=del was changed
Hi,
2008/12/6 Maciej Sieczka [EMAIL PROTECTED]:
$ v.category opt=print in=pts
1
2
3
$ v.category opt=del in=pts out=pts_delcat
$ v.category opt=print in=pts_delcat
2
3
I.e. only category 1 is removed.
yes, only cat '1' is removed ('1' is default value for 'cat' parameter)
to remove all categories use 'cat=-1'
Such a change in user interface is not acceptable for GRASS 6. By
well, you are right (reverted r34750).
default all categories should be selected. I don't see a reason to
change the default behaviour in GRASS 7 either.
new behaviour can be useful if you want to remove not all categories,
but only selected one (well, you can always use v.edit for that).
Martin
--
Martin Landa landa.martin gmail.com * http://gama.fsv.cvut.cz/~landa *
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[GRASS-dev] Re: v.category: opt=del was changed
Martin Landa pisze: 2008/12/6 Maciej Sieczka [EMAIL PROTECTED]: Such a change in user interface is not acceptable for GRASS 6. By well, you are right (reverted r34750). Cool. default all categories should be selected. I don't see a reason to change the default behaviour in GRASS 7 either. new behaviour can be useful if you want to remove not all categories, but only selected one (well, you can always use v.edit for that). So, given that v.edit already provides the functionality of removing selected categories only (tool=catdel cats=), I suggest to revert to old v.category opt=del behavior in GRASS 7 as well. There is no big enough reason to change the interface in this regard IMO. I don't insist though. Cheers, Maciek -- Maciej Sieczka www.sieczka.org ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
Re: [GRASS-dev] Re: v.category: opt=del was changed
Maciek: default all categories should be selected. I don't see a reason to change the default behaviour in GRASS 7 either. Martin: new behaviour can be useful if you want to remove not all categories, but only selected one (well, you can always use v.edit for that). perhaps we should better define what the modules are supposed to do. v.edit is clearly for incisive/targeted edits to a vector map, so at the other end we could promote v.category as the general purpose/bulk category maintenance tool. This would mean less for learning curve required, and less opportunity for new user confusion. In the same vein I wonder if the new v.cat ids= option offers anything new; IMO such raw/low-level stuff should be held for advanced use in v.edit. e.g. the v.cat module description explains what the cat is by calling it a type of ID number. And then we provide both cat= and and ids= options. What's a non-ultra-power user to think? I've now added a line in the help page to explain cat= 2c, Hamish ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
