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