public boolean isContained(char axis) {
		switch (axis) {
		case 'x':
			if (getMinX() < -0.5f * model.getLength() || getMaxX() > 0.5f * model.getLength())
				return false;
			break;
		case 'y':
			if (getMinY() < -0.5f * model.getWidth() || getMaxY() > 0.5f * model.getWidth())
				return false;
			break;
		case 'z':
			if (getMinZ() < -0.5f * model.getHeight() || getMaxZ() > 0.5f * model.getHeight())
				return false;
			break;
		}
		return true;
	}