Forums >> Revit Building >> Technical Support >> Constraining a circle centered between two reference planes

ArchiN00B

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Joined: Sat, Apr 3, 2010
144 Posts

In constraining a family, I'm trying to make a visible/invisible rebar circle stay exactly in the center between two outside reference planes, regardless of how those planes shift...since I can't dimension to the center of the circle, how would this be done? Please see photo below. Thank you.

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ArchiN00B

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Joined: Sat, Apr 3, 2010
144 Posts

Woo hoo, figured it out. I had to edit the boundary of the circle, and THAT's where the "show circle centermark" checkbox was located...then I had to dimension it while in edit mode, not after. 

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mike102

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Joined: Sun, Mar 2, 2008
5 Posts

To add to this post if you are in a family draw an arc and connect it to reference planes.

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Jimidy

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Joined: Fri, Apr 7, 2017
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Just in case anyone struggles to find this, here's a screenshot of where to look in the Properties Dialogue box when in sketch mode, you first need to select the circle then click on the Centre Mark Visible tick box. when this is ticked a crosshair will show in the centre of the circle which can be dimensioned or constrained to reference planes.

Hope this helps

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