  &var limit=25;
var step=2;


// ramp brush
// by Paul Everett  //
var arr,set;
main(doc,op)
{
if (!set) {	arr = op->GetPoints();
						set=TRUE;}
var oldpos=curpos;
curpos+=curnorm*step;
var origin=arr[pointid];
if (vlen(curpos-origin)>20) 
          curpos=origin+vnorm(curpos-origin)*limit;
} 