The installer requires the following components to be installed:

• Visual C 2008 Runtime x86
• Python 2.7 x86

For compilation of CityDrain3 the following tools/libraries are needed:

• cmake
• python 2.7 (including the developement packages)
• swig
• a recent compiler able to link against the python dlls (Visual Studio in Windows)
• OpenMP capable compiler if you want the parallelization features
• boost with:
  • filesystem
  • system
  • thread
  • signals
  • program_options
  • date_time
• and Qt.

CityDrain3 includes a terminal application and a GUI application.

The terminal application is called cd3. On first call of cd3 this usage is prompted:

$ ./cd3
$ provide a model file
$ CityDrain3 command line options:
$   -h [ --help ]          produce help message
$   -d [ --state-dir ] arg used to store and locate restart data
$   -r [ --restart ] arg   specifiy the time where to restart
$   -m [ --model ] arg     the model to run the simulation

The GUI application is called cd3-gui and should be availabe from your Windows menu if the installer was used on windows.

If you Start the CityDrain3 GUI you are greeted with the main window. The main window has three parts with which you work the most:

• Node List: The node list contains the nodes which are available for your urban drainage system.
• Model Area: The model area is used to connect and arrange your sewer system and urban drainage components.
• Log View: The log view is used to give detailed feedback to the user.

In the red highlighted area the left most button is used for creating a new and empty simulation. If you hit this button a dialog shows up where you can enter the details of the simulation. Everything except the flow definition can be changed afterwards.

Once you have accepted the properties of your new simulation you get back to the main window. The Node List is now filled with a list of predefined nodes. You can drag and drop the nodes from the list into the Model Area.

Once you have droped a node on the Model Area a dialog pops up which prompts you to edit the properties of the node. This dialog is dynamically generated based on the nodes defined properties. If you cancel this dialog the node won't be placed on the Model Area. If you click Ok the properties are then set and the nodes init function is called. The node then verifies the properties. If a property is not accepted the dialog pops up again and a message shows up in the Log View. Only if all properties are verified to work the dialog disappears after hitting Ok.

To connect two nodes, i.e. make water flow from one component to the other, you begin by clicking a source port of a node, drag the mouse to a sink port and release the mouse. Its important to always begin nodes at source ports they are on the right of a node and end them at sink ports, which are located on the left of a node. After you are finished with modelling your system you can run the simulation.