QGIS Configuration¶

General Menu¶

Application

• Select the Style (QGIS restart required) and choose between ‘Oxygen’,’Windows’,’Motif’,’CDE’, ‘Plastique’ and ‘Cleanlux’ ().
• Define the Icon theme . Currently only ‘default’ is possible.
• Define the Icon size .
• Define the Font. Choose between QT default and a user-defined font.
• Change the Timeout for timed messages or dialogs .

• Splashscreen beim Start nicht anzeigen

• Tipps beim Starten anzeigen

• Bold group box titles
• QGIS-styled group boxes
• Use live-updating color chooser dialog

Project files

• Open project on launch (choose between ‘New’. ‘Most recent’ and ‘Specific’. When choosing ‘Specific’ use the to define a project)
• Create new project from default project. You have the possibility to press on Set current project as default or on Reset default. You can browse through your files and define a directory where you find your user-defined project templates. There will be an entry in Project ‣ New From Template if you first activate Create new project from default project and then save a project in the project templates folder.
• Prompt to save project and data source changes when required
• Warn when opening a project file saved with an older version of |qg|
• Enable macros . This option was created to handle macros which are written to perform an action

on project events. You can chosse between ‘Never’, ‘Ask’, ‘For this session only’ and ‘Always (not recommended)’.

System Menu¶

Environment

System environment variables can now be viewed and many configured in the Environment menu (see figure_environment_variables). This is useful for platforms, such as Mac, where a GUI application does not necessarily inherit the user’s shell environment. It’s also useful for setting/viewing environment variables for the external tool sets controlled by the processing toolbox, e.g. SAGA, GRASS; and, for turning on debugging output for specific sections of the source code.

• Use custom variables (restart required - include separators). You can Add and Remove variables. Current environment variables ‣ are displayed below and it’s possible to Show only QGIS-specific variables.

Figure System Environment:

System environment variables in QGIS

Plugin paths

• Add or Remove Path(s) to search for additional C++ plugin libraries

Data Sources Menu¶

Feature attributes and table

• Open attribute table in a dock window (QGIS restart required)
• Copy geometry in WKT representation from attribute table. When using ^{Copy selected rows to clipboard} from the Attribute table menu then this has the result that also the coordinates of points or vertices are copied to the clipboard.
• Attribute table behaviour . There are three possibilities: ‘Show all features’, ‘Show selected features’ and ‘Show features visible on map’
• Attribute table row cache . This row cache makes it possible to save the last loaded x attribute rows so that working with the attribute table will be quicker. The cache will be deleted when closing the attribute table.
• Representation for NULL values Here you can define a value for data fields containing a NULL value.

Data source handling

• Scan for valid items in the browser dock . You can choose between ‘Check extension’ and ‘Check file contents’.
• Scan for contents of compresses files (.zip) in browser dock . ‘No’, ‘Basic scan’ and ‘Full scan’ are possible.
• Prompt for raster sublayers when opening. Some rasters support sublayers - they are called subdatasets in GDAL. An example is netcdf files - if there are many netcdf variables, GDAL sees every variable as a subdataset. The option is to control how to deal with sublayers when a file with sublayers is opened. You have the following choices:
  • ‘Always’: always ask (if there are existing sublayers)
  • ‘If needed’: ask if layer has no bands, but has sublayers
  • ‘Never’: never prompt, will not load anything
  • ‘Load all’: never prompt, but load all sublayers
• Ignore shapefile encoding declaration. If a shapefile has encoding information this will be ignored by QGIS.
• Add PostGIS layer with double click and select in extended mode
• Add Oracle layers with double click and select in extended mode

Rendering Menu¶

Rendering quality

• Linie auf Kosten der Zeichengeschwindigkeit weniger gezackt zeichnen

• Problem mit falsch gefüllten Polygonen beheben

Rasters

• with RGB band selection you can define the number for the Red, Green and Blue band.

Contrast enhancement

• Single band gray . A single band gray can have ‘No stretch’, ‘Stretch to MinMax’, ‘Stretch and Clip to MinMax’ and also ‘Clip to MinMax’
• Multi band color (byte/band) . ‘No stretch’, ‘Stretch to MinMax’, ‘Stretch and Clip to MinMax’ and ‘Clip to MinMax’.
• Multi band color (>byte/band) . ‘No stretch’, ‘Stretch to MinMax’, ‘Stretch and Clip to MinMax’ and ‘Clip to MinMax’.
• Limits (minimum/maximum) . ‘Cumulative pixel count cut’, ‘Minimum/Maximum’, ‘Mean +/- standard deviation’
• Cumulative pixel count cut limits
• Standard deviation multiplier

Debugging

• Show these events in the Log Message panel (under rendering tab): Map canvas refresh

Canvas and Legend Menu¶

Default map appearance (overridden by project properties)

• Define a Selection color and a Background color.

Layer legend

• Double click action in legend . You can either ‘Open layer properties’ or ‘Open attribute table’ with the double click.
• the following Legend item styles are possible
  • Capitalise layer names
  • Bold layer names
  • Bold group names
  • Display classification attribute names
  • Create raster icons (may be slow)

  • Neue Layer zur gewählten oder aktuellen Gruppe hinzufügen

Map tools Menu¶

Identify

• Abfrageergebnisse in einem Dock-Fenster (QGIS-Neustart erforderlich)

• Die Modus-Einstellung legt fest welche Layer von dem Objekte abfragen-Werkzeug gezeigt werden. In dem Sie auf ‘Von oben nach unten’ oder ‘Von oben nach unten, beim ersten halten’ statt auf ‘Aktueller Layer’ wechseln werden Attribute für alle abfragbaren Layer (siehe Abschnitt Projekteigenschaften unter QGIS Projekte um festzulegen welche Layer abfragbar sind) mit dem Objekte abfragen-Werkzeug angezeigt.

• Objektformular öffnen, wenn ein einzelnes Objekte abgefragt wird

• Suchradius für die Objektidentifikation und zur Maptippanzeige einstellen

Measure tool

• Definieren Sie Gummibandfarbe für das Meßwerkzeug

• Definieren Sie Dezimalstellen

• Basiseinheit beibehalten

• Preferred measurements units (‘meters’ or ‘feet’)`
• Preferred angle units (‘Angle’, ‘Radians’ or ‘Gon’)

Panning and zooming

• Definieren Sie Mausradaktion (‘Zoom’, `Zoomen und mittig zentrieren, Zur Mausposition zoomen, Nichts)

• Definieren Sie Zoomfaktor für das Mausrad

Predefined scales

Here you find a list of predefined scales. With the ‘+’ and ‘-‘ buttons you can add or remove your individual scales.

Digitizing Menu¶

Feature creation

• Eingabe der Attributwerte bei der Erstellung neuer Objekte unterdrücken

• Letzte Attributwerteingaben wiederverwenden

• Validate geometries. Editing complex lines/polygons with many nodes can end up with very slow rendering. This is because the default validation procedures in QGIS can use a lot of time. To speed up rendering it is possible to select GEOS geometry validation (starting from GEOS 3.3) or to switch it off. GEOS geometry validation is much faster, but the disadvantage is that only the first geometry problem will be reported.

Rubberband

• Define Rubberband Line width and Line color

Snapping

• Fangoptionsdialog in einem Dockfenster anzeigen (QGIS-Neustart erforderlich)

• Define Default snap mode (‘To vertex’, ‘To segment’, ‘To vertex and segment’, ‘Off’)
• Define Default snapping tolerance in map units or pixels
• Define the Search radius for vertex edits in map units or pixels

Vertex markers

• Markierungen nur für gewählte Objekte anzeigen

• Define vertex Marker style (‘Cross’ (default), ‘Semi transparent circle’ or ‘None’)
• Define vertex Marker size

Curve offset tool

Die nächsten 3 Optionen beziehen sich auf das ^{Linie versetzen} Werkzeug in Erweiterte Digitalisierung. Durch die verschiedenen Einstellungen ist es möglich die Form des Linienversatzes zu beeinflussen.

• Verbindungsstil für Linienversatz

• Quadrant segments for curve offset

• Eckengrenze für Linienversatz

GDAL Menu¶

GDAL is a data exchange library for raster files. In this tab you can Edit create options and Edit Pyramids Options of the raster formats. Define which GDAL driver to be used for a raster format as in some cases more than one GDAL driver is available.

CRS Menu¶

Default CRS for new projects

• Automatically enable ‘on the fly’ reprojection if layers have different CRS

• ‘On-The-Fly’-Reprojektion voreinstellen

• Select a CRS and Always start new projects with this CRS

CRS for new layers

This area allows to define the action, when a new layer is created, or when a layer without CRS is loaded.

• Prompt for CRS
• Use project CRS
• Use default CRS displayed below

Sprache¶

• System-Locale überschreiben und Stattdessen folgende Spracheinstellungen benutzen

• Informationen über die aktive System-Locale

Netzwerk¶

General

• WMS Suchadresse - Standard ist http://geopole.org/wms/search?search=%1&type=rss

• Define Timeout for network requests (ms) - default is 60000
• Define Default expiration period for WMSC/WMTS tiles (hours) - default is 24

Figure Network Tab:

Proxy-settings in QGIS

Cache settings

Define the Directory and a Size for the cache.

• Proxy für Web-Zugriff benutzen und entsprechend ‘Host’, ‘Port’, ‘Benutzer’ und ‘Passwort’ definieren.

• Definieren Sie den Proxytyp ‣ entsprechend ihrer Bedürfnisse.

  • DefaultProxy ‣: Proxy wird auf Grundlage des Proxy der Anwendung festgelegt

  • Socks5Proxy ‣: Proxy für jede Art von Verbindung. Unterstützt TCP, UDP, Bindung an einen Port (eingehende Verbindungen) und Authentifizierung.

  • HttpProxy ‣: Umgesetzt mit dem “CONNECT”-Befehl, unterstützt nur ausgehende TCP-Verbindungen und Authentifizierung.

  • HttpCachingProxy ‣:Umgesetzt mit normalen HTTP-Befehlen, ist nur im Rahmen von HTTP-Anfragen sinnvoll

  • FtpCachingProxy ‣: Umgesetzt mit FTP-Proxy, ist nur im Rahmen von HTTP-Anfragen sinnvoll

Excluding some URLs can be added to the text box below the proxy-settings (see Figure_Network_Tab).

Wenn Sie weitere Informationen über die verschiedenen Proxyeinstellungen benötigen, schauen Sie bitte im Handbuch der QT-Bibliothek nach unter der http://doc.trolltech.com/4.5/qnetworkproxy.html#ProxyType-enum.

You can modify the options according to your needs. Some of the changes may require a restart of QGIS before they will be effective.

• settings are saved in a text file: $HOME/.config/QGIS/qgis.conf
• you can find your settings in: $HOME/Library/Preferences/org.qgis.qgis.plist
• settings are stored in the registry under: HKEY\CURRENT_USER\Software\QGIS\qgis