How do you measure the area and display it in the views

Support
1

Can the area measurement display be displayed in the views as well as the Angle display?like this.
image

2

Yes, in recent Slicer Preview Releases you can use closed curve markups to measure area and display in views (you can select list of enabled measurements in Measurements section in Markups module).

3

Can i use the plane makeups to measure area?And then how can i implement it in code, or which interface i can use?

4

In latest Slicer Preview Releases, you can enable “area” measurement for markups plane nodes (in Markups module / Measurements section).