Draw plot on plot (area on plot)

Hello, I don't know if I'll be able to fully explain what I need. But I'll try.

I've got curved frame and on this frame, I have to draw a graph of forces/moments/stress. The frame has 9 intervals. For now I stretched the frame and draw the diagrams on the stretched -zero- line.

But what should I do if I want to draw it on the real frame?

 A few examples:

I try to do something like this: http://imgur.com/PazAG3Y

This is the real frame: http://imgur.com/4oVQCQh

With corresponding forces affecting the frame.

If I stretch the final forces/moment/stress diagrams, it looks like this: http://imgur.com/CtU9kCJ

 I need it like "this"

http://imgur.com/GyaFBNa

I hope you know what I mean :-) I'm not a fotoshop guy :-)

Edit: Let's go (if you like) from the point that I'm able (didn't try yet but I hope it won't be so hard) to draw a plot line of the frame in the figure. Now, how to bend those 4 graphs correspondingly.

[RahulTandon]

its been two years since you've posed the problem, Are you still i nterested in the answer/solution?