3.2. Digitizing in TWW

This represents a guide on how to correctly collect and digitize data of sewer networks including building the topology.

• 3.2.1. Data entry
  • 3.2.1.1. The TWW wizard
  • 3.2.1.2. QGIS standard tools
• 3.2.2. Digitizing Wastewater Structures
  • 3.2.2.1. General
  • 3.2.2.2. Digitizing
  • 3.2.2.3. Further attributes and classes
  • 3.2.2.4. Geometry synchronization
• 3.2.3. Digitizing detailed geometry
  • 3.2.3.1. General
  • 3.2.3.2. Digitizing tool
• 3.2.4. Digitizing Detailed Geometry as Drainage Channel
  • 3.2.4.1. General
  • 3.2.4.2. Digitizing tool
• 3.2.5. Digitizing Channels
  • 3.2.5.1. General
  • 3.2.5.2. Digitizing
  • 3.2.5.3. Further attributes and classes
  • 3.2.5.4. Geometry synchronization
• 3.2.6. Deleting objects
  • 3.2.6.1. Delete Reach
  • 3.2.6.2. Delete Manhole or other Wastewater Structure
  • 3.2.6.3. Delete Wastewater Structure, but keep the wastewater_node and the connections to the wastewater_node
  • 3.2.6.4. Delete Cover
  • 3.2.6.5. Delete Structure parts
  • 3.2.6.6. Delete detailed geometries
• 3.2.7. Digitizing Catchment Areas
  • 3.2.7.1. General
  • 3.2.7.2. Digitizing
  • 3.2.7.3. Editing
  • 3.2.7.4. Split Areas
  • 3.2.7.5. Merge Areas
  • 3.2.7.6. Connect Catchment area to Wastewater Network Nodes
• 3.2.8. Importing data
  • 3.2.8.1. General
  • 3.2.8.2. Example Importing manholes from a TXT-File:
  • 3.2.8.3. Example Importing manholes with attributes: