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17.3. Inițierea cadrului de procesare

Primul lucru de făcut, înainte de a utiliza cadrul de prelucrare, este să-l configurați. Nu este mult de configurat, astfel încât aceasta este o sarcină ușoară.

Later on we will show how to configure the external applications that are used for extending the list of available algorithms, but for now we are just going to work with the framework itself.

The processing framework is a core QGIS plugin, which means that, if you are running QGIS 2.0, it should already be installed in your system, since it is included with QGIS. In case it is active, you should see a menu called Processing in your menu bar. There you will find an access to all the framework components.

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Dacă nu puteți găsi acel meniu, trebuie să activați plugin-ul, din managerul de plugin-uri, și să-l activați.

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Elementul principal cu care vom lucra este setul de instrumente. Faceți clic pe intrarea de meniu corespunzătoare, apoi veți vedea bara de instrumente andocată în partea dreaptă a ferestrei QGIS.

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The toolbox contains a list of all the available algorithms, divided in groups. There are two ways of displaying and organizing those algorithms: the advanced mode and the simplified mode.

By default, you will see the simplified mode, which groups algorithms according to the kind of operation they perform. Although some of the algorithms that you will see in the toolbox depend on other external applications (most of them do, in fact), you will not see any mention to those applications. The origin of algorithms is hidden in this mode, which is a facade that simplifies using algorithms through the processing framework.

Examples in this guide only use the simplified mode. The advanced mode has some additional features and algorithms, but it requires understanding the applications that are called, so they are a more advanced topic. Some of these more advanced ideas are introduced in the final lessons of this book, but for the rest of them we will just use the simplified interface.

You can change between the simplified and the advanced mode by using the selector on the bottom part of the toolbox.

Bara de instrumente, atunci când se utilizează modul avansat, arată astfel.

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Dacă ați ajuns la acest punct, acum sunteți gata de utilizare a geoalgoritmilor. Nu este nevoie să configurați nimic altceva. Putem rula deja primul nostru algoritm, lucru pe care îl vom face în lecția următoare.