@Override
  protected void initProperties() {

    super.initProperties();
    properties =
        PropertyUtil.setProperty(
            properties,
            PropertyConstants.EDGE_PROPERTY_TYPE,
            PropertyConstants.EDGE_PROPERTY_TYPE_CURVED_ORTHOGONAL);
    PropertyUtil.makeEditable(properties, PropertyConstants.EDGE_PROPERTY_TYPE, false);
    properties =
        PropertyUtil.setProperty(properties, PropertyConstants.EDGE_PROPERTY_ROUNGING, rounding);
  }