docs: public void append(float[] newValue) {
          if ( (newValue.length % 2) == 0) {
              for (int i = 0; i < (newValue.length/2); i++) {
                  value.add( new SFVec2f(newValue[i*2], newValue[i*2+1]) );
              }
          }
          else {
              Log.e(TAG, "X3D MFVec3f append set with array length not divisible by 2");
          }
      }