Filling in the edges of a circle?

Support Modeling
1

I have a little rocketship that is missing a chunk - alas, the chunk is more or less beveled to loops of two different sizes. Like so:


I have no way of filling in the vertices around the smaller loop so that I can use an edge bridge; at least, that’s the method I was trying to use.

Would some be so kind as to tell me how I might fix this?

2

You can duplicate some similar faces and rotate them into place to fill the gap. Use the the vertex snapping option to match the gap precisely, then remove any double vertices (W / remove doubles) to weld everything together

Demo: http://screencast.com/t/hdAW8kqj8I

3

Method 2: Erase bad half of cylinder and use mirror modifier to recreate good half on the other side.

4

3rd method

gridfill.png1280×948 177 KB

Select the opening, deselect vertices from the middle, ctrl+F -> grid fill.