Hi,

I'm using Elastic 7.17 version and trying to create Circle visualization using Vega.

I have the below sample data;

```
[
{"stage":"s1","indicator":"i1","score":3,"maxscore":4},
{"stage":"s1","indicator":"i1","score":1,"maxscore":4},
{"stage":"s1","indicator":"i2","score":2,"maxscore":4},
{"stage":"s1","indicator":"i2","score":0,"maxscore":4},
{"stage":"s1","indicator":"i3","score":4,"maxscore":4},
{"stage":"s1","indicator":"i3","score":4,"maxscore":4},
{"stage":"s2","indicator":"i1","score":3,"maxscore":4},
{"stage":"s2","indicator":"i1","score":1,"maxscore":4},
{"stage":"s2","indicator":"i2","score":4,"maxscore":4},
{"stage":"s2","indicator":"i2","score":0,"maxscore":4},
{"stage":"s2","indicator":"i3","score":3,"maxscore":4},
{"stage":"s2","indicator":"i3","score":0,"maxscore":4}
]
```

I'm calculating score % for each 'Stage' with some weightage for each 'Indicator' using below formula;

```
(sum(score,kql='indicator: i1')/sum(maxscore,kql='indicator: i1')*100*0.5)+(sum(score,kql='indicator: i2')/sum(maxscore,kql='indicator: i2')*100*0.3)+(sum(score,kql='indicator: i3')/sum(maxscore,kql='indicator: i3')*100*0.2)
So, for the able sample data, the score% will look like below;
stage1 = 25+7.5+20 = 52.5%
stage2 = 25+15+7.5 = 47.5%
```

Based on below scoring% range, I need to represent each stage as Red, Yellow and Green

-- 0% - 50% ---> RED

-- 50% - 80% ---> YELLOW

-- 80% - 100% --> GREEN

I'm looking to achieve as below;

Please let me know;

- Can the Circle visualization be achieved using Vega with the Data set and Formula mentioned above?
- Can the above score calculation formula be used in Vega as is, if so, how to achieve it (I couldn't find any documentation on the same) ?
- Is there any sample Circle Vega code I can refer to (not the 'Arc' mark type) ?

Thanks in Advance!