My first thought would be to use masking (or alpha transparency for a smoother look) and draw the ship and four shield arcs with five separate images. When they're loaded with AutoMidHandle and superimposed at the same coordinates, you get something like this:
The images all share the same center, so they all rotate around the same point together.
Here's a zip with code and sample images to test that it works: ship_shield.zip (I got a little carried away jazzing up the drab artwork with a pulsating front shield <g>):
The images all share the same center, so they all rotate around the same point together.
Here's a zip with code and sample images to test that it works: ship_shield.zip (I got a little carried away jazzing up the drab artwork with a pulsating front shield <g>):