Section for 3D Model

Hi Guys,

I have been thinking a question for a while:

Is there any easy way to cut a section(base on a polyline) for a 3D model as shown?

Section Tool can only cut a section base on a single line and the viewing direction should be always perpendicular to the section line...

If I use section tool to cut twice then merge 2 sections together is not a good way. Because :

1. I cannot get the right direction

2. It is very difficult to deal with the middle part.

Did anybody have the same issue before?

Thanks for any suggestion.

Jack