Quantum GIS Basics - Desktop GIS: Mapping the Planet with Open Source Tools - page 329

Georeferencer
Georeference rasters by interactively setting control points to cre-
ate a world file. See Section 8.5 , Georeferencing with QGIS, on
page 136 .
Graticule Creator
Create a graticule (grid) shapefile by specifying the extent and
interval between latitude and longitude lines. You can create a
point, line, or polygon graticule with this plugin.
Launcher
Launches a program or script from QGIS and captures the output.
Commands are stored in a drop-down list for future use.
North Arrow
Displays a customizable north arrow on the map canvas. You can
adjust the placement of the arrow, as well as the angle. Or you
can just let QGIS determine the angle direction automatically.
PostgreSQL Geoprocessing
Tools for processing PostGIS layers. At present, this plugin is
rather limited and contains only a Buffer tool.
SPIT
The Shapefile to PostGIS Import Tool (SPIT) allows you to import
shapefiles into PostGIS. The use of SPIT is covered in Section 7.3 ,
Using QGIS to Load Data, on page 107 .
Scale Bar
Displays a scale bar on the map canvas. You can customize the
placement, style, color, and size of the scale bar.
WFS
Experimental plugin for consuming WFS services on the Internet
and displaying the data in QGIS. This plugin is included as part
of the QGIS package, but at the time of this writing probably isn't
ready for prime time.
QGIS plugins are managed by the Plugin Manager. You access the Plug-
in Manager from the Plugins menu. In Figure D.3 , on the next page, you
can see the Plugin Manager and the twelve plugins that are distributed
with QGIS.
The Plugin Manager is easy to use. Basically, you just check the plugins
you want loaded and click the OK button. If you want to unload a