text: #include "PlaneConstant.h"
  int PlaneConstant::count=200;
  float PlaneConstant::width=230;
  float PlaneConstant::widSpan=width/(count-1);
  float PlaneConstant::YMax=100;
  float PlaneConstant::ZMax=300;
  float PlaneConstant::YSpan=0.4f;
  