I want to draw a diagram that shows how my program flows.
I have a main routine that calls a few subroutines, which in turn call a few subroutines.
Does a package exist which can show this hierarchy?
I want to be able to configure the size of all the rectangles I draw.
something like this

text widthandminimum heightparameters. – benwilfut Mar 19 at 8:53pgfmanual. There were several methods discussed there. What about trying to do it on your own first then come back here to ask about the part that gives you difficulty. – hpesoj626 Mar 19 at 9:02