I am wondering if there is a tool for QGIS that can do what I am about to describe. It might be in network analysis but I am not sure. I have used water gems but it does not do what I want it to do.
Lets say I have a network of water lines. These water lines all have valves. Now, lets say I have to fix a certain spot on one line and I need to know all the valves that needs to be turned off to shut off the water to that line so the men can work on that line.
How can this be done?
What would be nice is that I am able to chose the line and point where the breakage is located and it tells me all the valves that need to be turn off to stop the water.
Any idea if there is a tool like that already or even how could we do this with Python?