jaws2.f

来自「Intro/: Directory containing introducto」· F 代码 · 共 51 行

$alias fdopen='fdopen'(%val,%ref)
      include 'phigs.f1.h'			! get the HP-PHIGS aliases
      program jaws2				! file "jaws2.f"
      include 'phigs.f2.h'			! get the HP-PHIGS constants

      integer*4	WorkstnID			! workstation identifier
      parameter (WorkstnID=1)			! value chosen by the user
      integer*4	ConnID				! connection identifier
      integer*4	WorkstnType			! workstation type
      parameter (WorkstnType=POIDDX)		! out/in, direct, dbl bfr, X
      real	CtrlPts1X(6), CtrlPts1Y(6)	! control points for curve 1
      data	CtrlPts1X /.1, .7, .9, .9, .7, .6/
      data	CtrlPts1Y /.1, .1, .1, .3, .3, .3/
      real	KnotVector1(9)			! knot vector for curve 1
      data	KnotVector1 /0., 0., 0., 1., 2., 3., 4., 4., 4./
      real	CtrlPts2X(3), CtrlPts2Y(3)	! control points for curve 2
      data	CtrlPts2X /.6, .55,.5/
      data	CtrlPts2Y /.3, .25,.2/
      real	KnotVector2(6)			! knot vector for curve 2
      data	KnotVector2 /0., 0., 0., 1., 1., 1./
      real	CtrlPtsZ(6), CtrlPtsW(6)
      data	CtrlPtsZ /0., 0., 0., 0., 0., 0./
      data	CtrlPtsW /0., 0., 0., 0., 0., 0./
      real	ParmRange(2)			! limits of parameter range
      integer*4 fdopen				! to get file descriptor

      call popph(fdopen(fnum(7), 'w'//char(0)), 0)	! open phigs
      call pue004('/dev/screen/phigs_window', ConnID)	! get connection ID
      call popwk(WorkstnID, ConnID, WorkstnType)! open workstation
      call popst(1)				! open display list structure
      call psmk(PAST)				! set marker type to asterisk
      call psmksc(4.0)				! set marker scale factor
      !--- draw curve 1 ------------------------------------------------------
      call psln(PLDASH)				! set line type: dashed
      ParmRange(1)=0.0
      ParmRange(2)=4.0
      call pbsc3(3, 9, KnotVector1, ParmRange,	! non-uniform b-spline curve
     +  PNRAT, 6, CtrlPts1X, CtrlPts1Y, CtrlPtsZ, CtrlPtsW)
      !--- draw curve 2 ------------------------------------------------------
      call psln(PLSOLI)				! set line type: solid
      call ppm(3, CtrlPts2X, CtrlPts2Y)		! polymarker
      ParmRange(2)=1.0
      call pbsc3(3, 6, KnotVector2, ParmRange,	! non-uniform b-spline curve
     +  PNRAT, 3, CtrlPts2X, CtrlPts2Y, CtrlPtsZ, CtrlPtsW)
      call pclst				! close display list structure
      call ppost(WorkstnID, 1, 1.)		! send picture to display
      call pclwk(WorkstnID)			! close workstation
      call pclph				! close phigs
      stop					! stop processing
      end					! end of program