Algorithms

Performing graph management tasks or queries is done via QGIS algorithms within the extensive QGIS processing framework. This page lists all available Graphium algorithms as well as some hints on how to apply them.

Algorithm List

These algorithms are available:

• Graph Management
  • Activate Graph Version
  • Add Graph Version
  • GIP 2 Graphium Converter
  • OSM 2 Graphium Converter
  • Remove Graph Version
  • Set Default Graph Version
  • Update Graph Version Attribute
• Graph Data
  • Add Segment Geometry
  • Download Graph Version
  • Update Segment Attribute
  • Update Segment Geometry
• Utilities
  • GPX to JSON converter
  • Map Matcher
  • Routing

Algorithm Usage

The algorithms are used for graph management tasks or graph queries. They can be accessed through several options:

• Toolbox (Gearwheel icon, Ctrl + Alt + T; highlighted in red in figure): Navigate to the Graphium node to find all algorithms.
• QGIS locator (input at the bottom left, Ctrl + K; highlighted in blue in figure): Type the name of the algorithm and hit Enter to start a algorithm.
• Graph manager (highlighted in green in figure): Some algorithms like adding, activating or removing a graph version can be initiated via buttons at the graph manager.

Other usage options include (1) the graphical modeler where several algorithm are combined to a processing model and (2) batch processing where one algorithm is executed for multiple datasets. More details about the QGIS processing framework are available here.