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'end' : 'start',\n            },\n            offsetX: isLast ? -8 : 8,\n          };\n        },\n        layout: [\n          {\n            type: 'hide-overlap',\n          },\n        ],\n      },\n      tooltip: {\n        showTitle: false,\n        showMarkers: false,\n        shared: false,\n        // 内置：node 不显示 tooltip，edge 显示 tooltip\n        showContent: (items) => {\n          return !get(items, [0, 'data', 'isNode']);\n        },\n        formatter: (datum: Datum) => {\n          const { source, target, value } = datum;\n          return {\n            name: source + ' -> ' + target,\n            value,\n          };\n        },\n      },\n      nodeWidthRatio: 0.008,\n      nodePaddingRatio: 0.01,\n      animation: {\n        appear: {\n          animation: 'wave-in',\n        },\n        enter: {\n          animation: 'wave-in',\n        },\n      },\n    };\n  }\n\n  /**\n   * @override\n   * @param data\n   */\n  public changeData(data: Data) {\n    this.updateOption({ data });\n\n    const { nodes, edges } = transformToViewsData(this.options, this.chart.width, this.chart.height);\n\n    const nodesView = findViewById(this.chart, NODES_VIEW_ID);\n    const edgesView = findViewById(this.chart, EDGES_VIEW_ID);\n\n    nodesView.changeData(nodes);\n    edgesView.changeData(edges);\n  }\n\n  /**\n   * 获取适配器\n   */\n  protected getSchemaAdaptor(): Adaptor<SankeyOptions> {\n    return adaptor;\n  }\n\n  /**\n   * 获取 条形图 默认配置\n   */\n  protected getDefaultOptions() {\n    return Sankey.getDefaultOptions();\n  }\n}\n"]}