[GRASS-dev] Re: GRASS-dev] gis icons

[Michael Barton]

On Jan 4, 2009, at 3:53 PM, Robert Szczepanek wrote:

> Cytowanie Michael Barton <michael.barton at asu.edu>:
>>
>> On Jan 4, 2009, at 3:17 PM, Robert Szczepanek wrote:
>>>>
>>>> 6. Digitizing add various features. A plus is easier to understand
>>>> right away than a *. This makes grammatical sense: add a boundary
>>>> to a
>>>> vector, etc. It also complements the '-' for delete/remove feature.
>>>
>>> Digitizing you usually create new objects. For me 'create' is not
>>> the same as
>>> 'add' [1]. The same is with delete and remove.
>>> In other case of course we can use just + and -.
>>
>> One comment here. Technically, the "create" happens when you create a
>> new vector file. Then you "add" or "remove" features from the file by
>> digitizing or other means (e.g., you can add points or area centroids
>> by other modules). Indeed you create the features, but you add them  
>> to
>> the vector file. Perhaps, this is angels dancing on the head of a
>> pin...  ;-)
>>
>> Michael
>
> Real problem starts when you misunderstand delete and remove.
> When applied e.g. to layer what final effect will be?
> Will I destroy this layer or just remove from preview?
> Create/add is just backwards consequence of that.
> But I have also big doubts concerning importance of this issue.

This raises a good point. The opposite of create is delete/destroy,  
the opposite of add is remove (but not delete/destroy).

*/(red x in circle) for create/delete, +/- for add/remove?

Michael