how to draw an ROI like a ring shape?

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how to draw an ROI like a ring shape?

WangPing
Hello,
I am trying to draw a ring like ROI, but once I draw the outer circle, the inner circle does not show up when I finish it.
Thanks for any help
Ping

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Re: how to draw an ROI like a ring shape?

Cammer, Michael-2

Draw one shape.  Then try the band command in the selection menu.
________________________________
From: ImageJ Interest Group <[hidden email]> on behalf of Wang Ping <[hidden email]>
Sent: Thursday, February 28, 2019 10:30:32 PM
To: [hidden email]
Subject: how to draw an ROI like a ring shape?

Hello,
I am trying to draw a ring like ROI, but once I draw the outer circle, the inner circle does not show up when I finish it.
Thanks for any help
Ping

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