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Add initial documentation coverage for processing algorithms
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title: Processing Algorithms | ||
tx_slug: documentation_how-to_processing | ||
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# Processing Algorithms | ||
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QField offers access to a number of processing algorithms to modify digitized features and their geometries. | ||
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## Showing available algorithms | ||
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Running algorithms against your features is done through the features list drawer. First, identify one or more features by tapping on the map canvas and toggle multi-selection mode by long pressing on one of the identified features. Once you've checked all features to be processed, click on the 3-dot menu and select the _Process Selected Feature(s)_ item. | ||
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!![process selected features](../assets/images/process_selected_features.png "") | ||
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The processing algorithms drawer will by default filter out of the list of available algorithms to only show those flagged as favorites. Clicking on the _All algorithms_ tab will show the full list where you can add or remove favorites. | ||
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!![processing algorithms](../assets/images/processing_algorithms.png "") | ||
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## Running an algorithm | ||
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When an algorithm has been selected, a list of parameters will be displayed, regrouped into general and advanced ones within two distinct tabs. A third tab is available to access the algorithm's help content. For most algorithms, a live preview of the manipulated geometry will be overlayed on top of the map canvas offering an immediate feedback while parameters. | ||
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!![processing parameters](../assets/images/processing_parameters.png "") | ||
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Once parameters are set to your liking, click on the check button within the drawer's title bar to run the algorithm. |
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