使用 Python 创建/编辑 mxgraph 模型

Question

是否可以使用 Python 创建、编辑或将 JSON 或 XML 数据转换为 mxgraph 格式的 mxgraph 模型？如果是这样怎么做？，我在各个站点上进行了搜索，但找不到解决方案（示例 JSON 数据）；

  {
    name: 'Globals',    
    parentObjects: []
  },

  {
    name: 'Customer',
    included: true,    
    parentObjects: [
      {
        name: 'Globals',
      }
    ],
  },

  {
    name: 'Product',
    included: true,    
    parentObjects: [
      {
        name: 'Globals',
      }
    ],
  },

  {
    name: 'Transaction',
    included: true,    
    parentObjects: [
      {
        name: 'Customer',
      },
      {
        name: 'Product',
      }
    ],
  }

Answer 1

使用 mxgraph 没有“统一”的方式...您可以创建各种形状的各种类型的节点... MxGraph 允许您以 JSON 和 XML 格式导入和导出图形，但首先您需要以与要读取的 MxGraph 兼容的 JSON 或 XML 格式创建一个。

您可以在此处找到导入和导出 JSON 的代码示例： Example

正如您在 JSON 中所见，您需要指定节点的各个方面（几何、父级、边、可连接性等）。与 XML 类似...

我不是 Python 方面的专家，但您应该做的是将您的 JSON 转换为 MxGraph 可以实际读取的内容...

示例 JSON：

{
    "graph": [
        {
            "value": {
                "name": "Daffy Duck"
            },
            "geometry": {
                "x": 90,
                "y": 60,
                "width": 120,
                "height": 30,
                "relative": false,
                "TRANSLATE_CONTROL_POINTS": true,
                "alternateBounds": null,
                "sourcePoint": null,
                "targetPoint": null,
                "points": null,
                "offset": null
            },
            "id": "2",
            "vertex": true,
            "connectable": true,
            "parent": "1",
            "source": null,
            "target": null,
            "edges": [
                {
                    "value": "Edge",
                    "geometry": {
                        "x": 0,
                        "y": 0,
                        "width": 0,
                        "height": 0,
                        "relative": true
                    },
                    "id": "4",
                    "edge": true,
                    "parent": "1",
                    "source": "2",
                    "target": "3",
                    "mxObjectId": "mxCell#7"
                }
            ],
            "mxObjectId": "mxCell#6"
        },
        {
            "value": {
                "name": "Bugs Bunny"
            },
            "geometry": {
                "x": 1020,
                "y": 60,
                "width": 120,
                "height": 30,
                "relative": false,
                "TRANSLATE_CONTROL_POINTS": true,
                "alternateBounds": null,
                "sourcePoint": null,
                "targetPoint": null,
                "points": null,
                "offset": null
            },
            "id": "3",
            "vertex": true,
            "connectable": true,
            "parent": "1",
            "source": null,
            "target": null,
            "edges": [
                {
                    "value": "Edge",
                    "geometry": {
                        "x": 0,
                        "y": 0,
                        "width": 0,
                        "height": 0,
                        "relative": true
                    },
                    "id": "4",
                    "edge": true,
                    "parent": "1",
                    "source": "2",
                    "target": "3",
                    "mxObjectId": "mxCell#7"
                }
            ],
            "mxObjectId": "mxCell#8"
        },
        {
            "value": "Edge",
            "geometry": {
                "x": 0,
                "y": 0,
                "width": 0,
                "height": 0,
                "relative": true
            },
            "id": "4",
            "edge": true,
            "parent": "1",
            "source": "2",
            "target": "3",
            "mxObjectId": "mxCell#7"
        },
        {
            "value": {
                "name": "Elmer Fudd"
            },
            "geometry": {
                "x": 90,
                "y": 220,
                "width": 120,
                "height": 30,
                "relative": false,
                "TRANSLATE_CONTROL_POINTS": true,
                "alternateBounds": null,
                "sourcePoint": null,
                "targetPoint": null,
                "points": null,
                "offset": null
            },
            "id": "5",
            "vertex": true,
            "connectable": true,
            "parent": "1",
            "source": null,
            "target": null,
            "edges": [
                {
                    "value": "Edge",
                    "geometry": {
                        "x": 0,
                        "y": 0,
                        "width": 0,
                        "height": 0,
                        "relative": true
                    },
                    "id": "7",
                    "edge": true,
                    "parent": "1",
                    "source": "5",
                    "target": "6",
                    "mxObjectId": "mxCell#10"
                }
            ],
            "mxObjectId": "mxCell#9"
        },
        {
            "value": {
                "name": "Tasmanian Devil"
            },
            "geometry": {
                "x": 1020,
                "y": 220,
                "width": 120,
                "height": 30,
                "relative": false,
                "TRANSLATE_CONTROL_POINTS": true,
                "alternateBounds": null,
                "sourcePoint": null,
                "targetPoint": null,
                "points": null,
                "offset": null
            },
            "id": "6",
            "vertex": true,
            "connectable": true,
            "parent": "1",
            "source": null,
            "target": null,
            "edges": [
                {
                    "value": "Edge",
                    "geometry": {
                        "x": 0,
                        "y": 0,
                        "width": 0,
                        "height": 0,
                        "relative": true
                    },
                    "id": "7",
                    "edge": true,
                    "parent": "1",
                    "source": "5",
                    "target": "6",
                    "mxObjectId": "mxCell#10"
                }
            ],
            "mxObjectId": "mxCell#11"
        },
        {
            "value": "Edge",
            "geometry": {
                "x": 0,
                "y": 0,
                "width": 0,
                "height": 0,
                "relative": true
            },
            "id": "7",
            "edge": true,
            "parent": "1",
            "source": "5",
            "target": "6",
            "mxObjectId": "mxCell#10"
        }
    ]
}