Subversion Repositories wimsdev

!! +var+ +exec+ +string+

$lst_tit leveldata$lst_titend$type_both

  $lst_alias levelpoints

  $(lst_syntax)leveldata size $emph xsize,ysize$emphend

  ranges $emph x1,x2,y1,y2$emphend function $emph f(x,y)$emphend

  [levels $emph l1,l2,...$emphend]</tt>

  $lst_mean Computes coordinates of points on the level curve of

  $emph f(x,y)$emphend, at levels $emph l1,l2,...$emphend (defaults to one

  level 0). <p>

  The computation is made from $emph (x1,y1)$emphend to

  $emph (x2,y2)$emphend, and points are computed as integer positions in a

  picture with size $emph xsize,ysize$emphend. </p><p>

  Order of the fields is not important. All the fields except levels are

  mandatory.

  </p>