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Where to find python plugins in QGIS manager?
Python plugins are listed together with C++ plugins in QGIS plugin manager. They are searched for in these paths: Home directory (denoted by above ~) on Windows is usually something like C:\\Documents and Settings\\ (user) (on Windows XP or earlier) or C:\\Users\\ (user).
What kind of programming language does QGIS support?
QGIS supports the popular Python scripting language. Even if you are a beginner, learning a little bit of Python and QGIS programming interface will allow you to be much more productive in your work. This tutorial assumes no prior programming knowledge and is intended to give an introduction to python scripting in QGIS (PyQGIS).
Is there a processing console in QGIS for Python?
Models involving several algorithms can be defined using the command-line interface, and additional operations such as loops and conditional sentences can be added to create more flexible and powerful workflows. There is not a processing console in QGIS, but all processing commands are available instead from the QGIS built-in Python console .
How to pass a string to a QGIS object?
Simply use a string with the name that identifies the data object to use (the name it has in the QGIS Table of Contents) or a filename (if the corresponding layer is not opened, it will be opened but not added to the map canvas). If you have an instance of a QGIS object representing the layer, you can also pass it as parameter.
Python plugins are listed together with C++ plugins in QGIS plugin manager. They are searched for in ~/ (UserProfile)/python/plugins and these paths: For definitions of ~ and (UserProfile) see Core and External plugins.
Is the path to the pyqgis module known?
The path to the PyQGIS modules is now known, however they depend on qgis_core and qgis_gui libraries (the Python modules serve only as wrappers). Path to these libraries is typically unknown for the operating system, so you get an import error again (the message might vary depending on the system):
Which is the best scripting language for QGIS?
Starting from 0.9 release, QGIS has optional scripting support using Python language. We’ve decided for Python as it’s one of the most favourite languages for scripting. PyQGIS bindings depend on SIP and PyQt4. The reason for using SIP instead of more widely used SWIG is that the whole QGIS code depends on Qt libraries.
Where do I install Qt Creator for QGIS?
OSGeo4w installer for QGIS on Windows include a copy of Qt Designer program which is a lightweight version of Qt Creator and perfectly suitable for building plugins. You may skip downloading Qt Creator and use it instead from C:\\OSGeo4W64\\bin\\qgis-designer. Since we are developing the plugin in Python, we need to install the python bindings for Qt.
What kind of framework is used for QGIS?
Qt is a software development framework that is used to develop applications that run on Windows, Mac, Linux as well as various mobile operating systems. QGIS itself is written using the Qt framework. For plugin development, we will use an application called Qt Creator to design the interface for our plugin.