Hi

I want to draw a health-meter kinda thing on the lines of speedometer. it will be a semi-circle inside which a line joining the centre to the circumference will move on the basis of three indices
The best condition is shown when the angle is 180 degree and the worst is when it is 0 degree
There are two limits -one is warnign limit and the other is danger limit
As the line crosses the warning limit, the area beyond that will be yellow in colour and after the danger limit, it will show in red
How can I do tha
TI
Shilps