plot a square into a square

Hi i have an image lets say 400x600 and i plot the green rectangle with x1=101,y1=101 and widthGreen=200,heigthGreen=200.

Then i want to display the blue rectangle IN the green also with x2=101,y2=101 and widthBlue=50,heigthBlue=50.

The problem is that the green square has as reference system the original image the samedoes the blue.

But i want the blue square have as reference system the green square.

The right position of the blue square lets say is down to the right.

Any suggestions on how to do this?

Answer 1

[KSSV]

x2 = x1+width ;
y2 = y1+height ;

[pasta pontikaki]

sorry what is x1,y,1. In which rectangle are you referenced..

[KSSV]

Edited.....

[pasta pontikaki]

Din't work exactly but i change it a bit and it worked, thank you very much

[KSSV]

May be you have to intechange widht and height.....

x2 = x1+height ;
y2 = y1+width ;