# How can I make a line of vertices round?

I have a straight line of vertices and I don't know how to make them be arranged in a circular shape such as the top part of a dome.

Can anybody help me?

• do you want to bake just one line of vertices round? Or do you want to take a flat edge, and bridge the edge in to a round edge? Jul 5, 2014 at 16:57
• Well, either way would be good. I just need to create a semi-circular shape.
– Alex
Jul 5, 2014 at 18:00

If you don't mind not using the original vertices, I would add a circle (ShiftA >Add circle) in edit mode, so that it's added straight into the current object.

If you want to keep the existing verts, you could try using the To sphere operator (AltShiftS), or the circle operator in the bundled loop tools addon (you will have to enable in User prefs > Addons).

In the above example I first rotated one of the end verts with proportional editing enabled (O), to give it a semi-circular shape. This makes it easier for the circle operator

• It should be added that, when using LoopTools > Circle across a Mirror Modifier, the routine will use only the one side as input, so the results will not be as expected.
– Ben
Feb 15, 2019 at 7:06
• @Ben good point; in that situation you can put the 3D cursor in the actual center of the sphere (e.g. by selecting two opposing vertices and snapping the cursor to selected (shift+S)), then set the cursor as pivot (numpad .). To sphere at least will then be centered as expected, I'm not sure about looptools (and am currently on mobile, so I can't test atm) Feb 15, 2019 at 7:34
• I will give it a go, if that works out, it would really sweeten my day!
– Ben
Feb 15, 2019 at 20:44
• Loop Tools does not seem to give a hoot, but To Sphere works just as advertised!
– Ben
Feb 15, 2019 at 21:49