cdm/src/main/java/ucar/nc2/dataset/CoordinateSystem.java
public boolean isRegular() {
    for (CoordinateAxis axis : coordAxes) {
      if (!(axis instanceof CoordinateAxis1D)) return false;
      if (!((CoordinateAxis1D) axis).isRegular()) return false;
    }
    return true;
  }
public boolean isRegular() {
    for (CoordinateAxis axis : coordAxes) {
      if (!(axis instanceof CoordinateAxis1D)) return false;
      if (!((CoordinateAxis1D) axis).isRegular()) return false;
    }
    return true;
  }
true if all axes are CoordinateAxis1D and are regular

@return true if all axes are CoordinateAxis1D and are regular