public void setField(Object field) {
super.setField(field);
ObjectGrid2D og = (ObjectGrid2D) field;
grid = new DoubleGrid2D(og.getWidth(), og.getHeight());
valueGridPortrayal.setField(grid);
}
public void setImmutableField(boolean immutableField) {
super.setImmutableField(immutableField);
valueGridPortrayal.setImmutableField(immutableField);
}