retrieve a physical instance
phins_list *getphins(ptfig, insname)
Pointer to the figure in which the instance should be seeked
Name of the instance
getphins looks in the list of instances of the physical model pointed
to by ptfig for a instance identified by its insname.
getphins returns a pointer to the instance that matches the
"*** mbk error *** illegal getphins instance insname
in figure ptfig->NAME
No instance is called insname in the figure.
phins_list *exist(figname, insname)
char *figname, *insname;
return getphins(getphfig(figname), insname);