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Subject: Re: question again on aggregates
From: Pierre Bommel (bommel@cirad.fr)
Date: Thu Dec 05 2002 - 15:56:58 CET
Hello Paolo,
> i have another question regarding aggregates. is
> there a way to partition each element of an aggregate
> to smaller aggregates? for example, i paritioned the
> environment accoridng to political boundaries. now
> within each political boundary, i want to aggregates
> the components acoording to an attribure, such as land
> cover. Is this possible? how can i do this?
Yes, it is possible.
The simplest way consists in building small aggregates verifying two
conditions. Example:
self spaceModel setAggregates: Aggregate from: Cell verifying: [:c |
c policy = #xxx and:[c landCover = #yyy]]
or
self spaceModel setAggregates: Aggregate from: Cell attribute:
#policy attribute: #landCover.
You can then create (if necessary) higher aggregates verifying two
conditions. Example:
self spaceModel setAggregates: Aggregate from: Cell attribute:
#policy attribute: #landCover.
self theAggregates do:[:ag| ag initNeighbourhood. ag init].
self spaceModel setAggregates: Aggregate2 from: Aggregate verifying:
[:agg | agg policy = #xxx]
But this is just an example. We are writting a complete user-guide and a
tutorial describing all the methods of Cormas.
They should be available "very soon" ... ;o)
Best regards,
Pierre
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