2.4. Installation in Debian Linux

2.4.1. QGIS download and installation

TIP: Until the QGIS 3 official release, you can use the nightly repository. Please read https://www.qgis.org/it/site/forusers/alldownloads.html#debian-ubuntu
  • Open a terminal and type:

    sudo apt-get update
    
  • Press Enter and type the user password;

  • Type in a terminal:

    sudo apt-get install qgis python-matplotlib python-scipy
    
  • Press Enter and wait until the software is downloaded and installed.

Now, QGIS is installed.

_images/QGIS_d.jpg

2.4.2. Semi-Automatic Classification Plugin installation

  • Run QGIS;
  • From the main menu, select Plugins > Manage and Install Plugins;
_images/install_d.jpg _images/plugins.jpg
  • The SCP should be automatically activated; however, be sure that the Semi-Automatic Classification Plugin is checked in the menu Installed (the restart of QGIS could be necessary to complete the SCP installation);
_images/plugins_installed.jpg

2.4.3. Configuration of the plugin

Now, the Semi-Automatic Classification Plugin is installed and a dock and a toolbar should be added to QGIS. Also, a SCP menu is available in the Menu Bar of QGIS. It is possible to move the toolbar and the dock according to your needs, as in the following image.

_images/SemiAutomaticClassificationPlugin.jpg

The configuration of available RAM is recommended in order to reduce the processing time. From the SCP menu select settings_tool Settings > Processing .

_images/settings_processing.jpg

In the Settings, set the Available RAM (MB) to a value that should be half of the system RAM. For instance, if your system has 2GB of RAM, set the value to 1024MB.

_images/settings_processing_tab.jpg