void settolerance (tolerance) R3PLT.C Level 2
 
float tolerance A tolerance factor used in random-point plotting. As tolerance gets larger, the precision in the interpolating routines gets less.
 
settolerance() is used to eliminate the error "Too few data points. Try a coarser grid." when plotting random point contours or surfaces. Use this routine with caution. If you make tolerance big enough you will always satisfy the algorithm, but the answers may not be reliable.