This is an FYI on how i was able to do this. It is in response to a recently updated post but works differently.
Steps are
- Create a custom group with what ever filters you want. For me i did 4 groups. one for windows server, one for windows desktops, one for linux and one for vended appliances the below is the windows one
2. Make sure you are happy with the results then scroll down and select the assign custom properties (you need to be on an newer vrops)
3. Repeat this for all your groups.
4. Create you pie chart widget selecting you custom property as the data with the subject as virtual machine
5. Self provider as on
6. Input data as vsphere world
and this is your output
Hope this helps