Since speed is given in knots by default, I want to convert it to km/h. There is no option to do this for the speed limit (retrieved from Overpass), so I try to do it with a computed attribute. However, it does not show up.
This is how I configured it:
I even tried setting the expression to a constant value and the attribute to one from the dropdown list (I tried Output), but nothing showed up in the positions or reports. As you can see in the image, it also works perfectly fine when testing with a device, so I really don't understand why the attribute isn't being shown anywhere, unless I need to perform an extra step not mentioned on https://www.traccar.org/computed-attributes/
Have you linked your attribute to the device?
I tried to, by editing the device and then adding it to the attributes section. But I couldn't get it to work. So, what am I supposed to do exactly?
Open Settings > Devices and click the link icon next to the correct device. There select the attribute.
Ah okay thank you. I think it would be useful to put this on the computed attributes page I mentioned though
Since speed is given in knots by default, I want to convert it to km/h. There is no option to do this for the speed limit (retrieved from Overpass), so I try to do it with a computed attribute. However, it does not show up.
This is how I configured it:
I even tried setting the expression to a constant value and the attribute to one from the dropdown list (I tried Output), but nothing showed up in the positions or reports. As you can see in the image, it also works perfectly fine when testing with a device, so I really don't understand why the attribute isn't being shown anywhere, unless I need to perform an extra step not mentioned on https://www.traccar.org/computed-attributes/