2.3. Setup workstation
2.3.1. Required Software
188.8.131.52. Install QGIS
Client side components are:
QGIS extensions (depending on specific use case)
The exact required configuration is very dependant on the data sizes and complexity of rendering. However, water network data tend not to be huge volumes, and the minimal required configuration is not really high. For smooth map rendering, it is advised to use recent hardware, good video card and enough RAM though.
A comfortable configuration would be:
4x core Intel processor
8GB of RAM
Good video card (recent onboard Intel are ok, or dedicated NVidia/AMD)
Minimum requirement 2.14
We recommend using the latest LTR version: 2.18. which often offers a better experience in combination with QWAT. For Windows installation, download the OSGeo4W Installer
184.108.40.206. Optional plugin
QWAT uses a data historization process. The
pg history viewer plugin allows you to view the changes made and replay some of them.
2.3.2. Database configuration
To tell a workstation, where the database is (on the local system or on a network server) you will have to create some files initially on every device on which you will have QGIS/QWAT running. It is not required to do that on the server itself.
These instructions depend on your operating system.
220.127.116.11. Windows pg_service
Create a new directory where you want to store the configuration in. (E.g. a new folder
pgconfig in your home folder). This directory will be referred to as
PGSYSCONFDIR in this guide.
Set the environment variable
PGSYSCONFDIR to the path to
Inside this folder, there will be two files
pgpass(If you do not want to enter the password for the db every time)
On Windows, you need to save
pg_service.conf in Unix format in order to work.
One way to do it is to open it with Notepad++
Edit --> EOL Conversion --> UNIX Format --> File save .
18.104.22.168. Unix pg_service
On Unix-like systems (linux/macOS/*BSD etc.) you may put the files
.pgpass into your home folder (normally
22.214.171.124. All systems
Put the following content in the file
You may have to adapt the variables for your setup.
[qwat] host=localhost port=5432 dbname=qwat user=qwatuser
To save the password as well on the system you may use the file pgpass.
If you don’t have the database on your local machine replace any
localhost with the network address of your database