You can add zones to your network at any time. To do it, simply upload polygon files (either Shapefiles or GeoJSON) to use as zones in your model.
Inlets & outlets
Inside your zones, you can specify which of the elements with flowmeters are inlets or outlets. If you have flowmeter data,it will improve the overall accuracy of your network in the following 2 ways:
- It allows you to adjust demands in each zone
- It allows Qatium to set the boundaries of each zone more precisely, and determine which elements belong to it
To add inlets and outlets to your zones, edit your GIS files following the table below.
Data you add to your files
| Inlets | |
|---|---|
| Field | Inlets |
| Attribute | <text> |
| Outlets | |
|---|---|
| Field | Outlets |
| Attribute | <text> |
How Qatium processes that data
If not specified, Qatium will ignore it and you won’t see it on the platform.
Demands
You can specify Base demand and Demand patterns in your GIS files. Here’s how Qatium process your data depending on what you have specified:
- If both Base demand and Demand pattern are specified in the files, we’ll process that data as it is.
- If only Base demand is specified, we infer the Demand pattern as an array with a demand factor of 1. I.e. there is no period modulation.
- If only the Demand Pattern is specified: we infer the Base demand as 0.
You can assign different demand patterns per network zone by uploading a valid GeoJSON or Shapefile that contains a “MultiPolygon” or “Polygon” geometry.
The length of the DemandPattern is not limited. Each value corresponds to an hour or the specified pattern time step defined in the INP. You can add as many comma-separated values as required.