[
Date Prev][
Date Next][
Thread Prev][
Thread Next][
Date Index][
Thread Index]
[
List Home]
|
Re: [udig-users] Fwd: Dissolve property?
|
On Saturday 14 March 2009 18:13:03 erik wrote:
> Dear all, I'm somewhat perplex with the DIssolve function in udig.
Dear Erik, I assume that you are using the dissolve spatial operation
implemented in es.axios.udig.extensions.
> What is
> supposed to come in the Property field and what value should it take? Do I
> have to create a new attribute and set the value for records to TRUE and
> specify this as the property?
You are right. The dissolve operation works like a SQL GROUP BY, so it need a
property to direct the process. Thus, if you want to dissolve all features in
a layer and you haven't any property with the same value (for all features),
so your solution is right. That is create a new field with the same value like
true, null, '', or any think you want.
>
> I'd like to dissolve all features in a multipolygon layer without any
> condition on attributes and I can figure how to do this directly in udig.
> Many thanks,
> Erik
cheers
--
Mauricio Pazos
www.axios.es
