2.5. Installation in Mac OS

2.5.1. QGIS download and installation

  • Download and install the latest version of QGIS and GDAL from here .
  • In addition, download and install the python modules Numpy, Scipy, and Matplotlib from this link .

Now, QGIS is installed.

_images/QGIS_u.jpg

2.5.2. Semi-Automatic Classification Plugin installation

  • Run QGIS;
  • From the main menu, select Plugins > Manage and Install Plugins;
_images/install_u.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

2.5.3. 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