Source t208a.f

### SUBROUTINE DDIAPA ( IX, IY )

> Argument Definitions (+ indicates altered content)
>     integer            IX,         IY

> Description
>        (Add to Path)
>        Add the point (IX,IY) to the current path, which is assumed
>        to have  already been  started by  a call  to DDIBPA.   The
>        current point and visibility are updated in COMMON.
>        (27-May-1991)
>     - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

>        EXTERNAL REFERENCES (FUNCTION,SUBROUTINE,COMMON)

>        EXTERNAL REFS       TKIOLL,      TKIOWB,      TKIOWH,      TKIOWN

> Source file: | t208a.f

> Intrinsic Functions Called
>     integer            MAX0,       MIN0

> External Functions and Subroutines Called
>     integer            TKIOLL
>     subroutine         TKIOWB,     TKIOWH,     TKIOWN

> Local Variables (+ indicates altered content)
>     integer           +BLANK,      DUMMY

> Referenced Common Block Variables (+ indicates altered content)
>     DDI01              integer           +LASTX,    +LASTY
>     DDI01              integer           +MAXX,     +MAXY
>     DDI01              integer           +MINX,     +MINY
>     DDI01              integer           +NPATH
>     DDI01              logical           +VILAST