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Learning QGIS - Third Edition by Anita Graser

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Creating custom geoprocessing scripts using Python

In Chapter 4, Spatial Analysis, we used the tools of Processing Toolbox to analyze our data, but we are not limited to these tools. We can expand processing with our own scripts. The advantages of processing scripts over normal Python scripts, such as the ones we saw in the previous section, are as follows:

  • Processing automatically generates a graphical user interface for the script to configure the script parameters
  • Processing scripts can be used in Graphical modeler to create geoprocessing models

As the following screenshot shows, the Scripts section is initially empty, except for some Tools to add and create new scripts:

Writing your first Processing script

We will create our first simple script; ...

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