LBSALE[10]LBSALE[这个贴子最后由Jobyan在 2003/04/16 01:31pm 第 1 次编辑]

此程式用于显示三阶衍射面的位相曲线，编译链结后在指令行KEY入 DFPL N(N为衍射面别)
cmd dfpl(int sfn)
{
  float pi = 2*acos(0)&#59;
  float r = ap[sfn]&#59;
  float ri,w = wv[1]&#59;
  float pash, pash0 = 0, de1 , de2 , de3&#59;
   real size&#59;
   graphwin_open(1)&#59;
   for (size = .01&#59; size < .5&#59; size += 0.01)
   {
       /* Clear the window, draw the frame and refresh
        * the display:
       */
      GCLEAR&#59;
         pen 5&#59;
       viewport(.5-size, .5+size, .5-size, .5+size)&#59;
        frame&#59;
        gshow&#59;
       /* Let the frame remain visible for 1/10 second: */
        time_reset&#59;
       while (time < 1) &#59;
       }
   pen 4&#59;
   gmv .5 .96&#59;
   lor 5&#59;
   lsz 2&#59;
   label "Diff Sur Pash Plot--yzt"&#59;
   gmv 0 0.5&#59;
   glt 1 0.5&#59;
  stp outp off&#59;
  sbr&#59;
  spe sfn&#59;
  de1 = b4 , de2 = c4 , de3 = d4&#59;
  for (i = 0&#59; i<1001&#59; i++)
    {
     ri = i*r/1000&#59;
     pash = fabs((2000*pi*(de1*ri**2 + de2*ri**4 + de3*ri**6)/w))&#59;
     if (pash0<pash) pash0 = pash&#59;
    }
  gmv 0 0.5&#59;
  pen 3&#59;
  for (i = 0&#59; i<1001&#59; i++)
    {
     ri = i*r/1000&#59;
     pash = (2000*pi*(de1*ri**2 + de2*ri**4 + de3*ri**6)/w)&#59;
     glt ri/r 0.5+pash/pash0/2&#59;
     
     }
     
     stp outp on&#59;    
     
}☆

怎么用？