Neo4j是一个图形数据库,它可以将数据导出到JSON文件。但是,来自Neo4j的JSON文件在某种程度上对我来说非常复杂,我无法将其导入D3。我的问题是如何从Neo4j导入JSON文件并将其导入D3以进行图形可视化,而无需更改JSON文件的格式。我曾经问过Neo4j社区,他们说这是不可能的,或者我认为他们的意思是。
以下是Neo4j导出的JSON文件:
{ "table": { "_response": { "columns":["n"], "data":[ {"row":[{"num":"A08"}],"graph":{"nodes":[{"id":"0","labels":["Person"],"properties":{"num":"A08"}}],"relationships":[]}}, {"row":[{"num":"A04"}],"graph":{"nodes":[{"id":"1","labels":["Person"],"properties":{"num":"A04"}}],"relationships":[]}}, {"row":[{"num":"A05"}],"graph":{"nodes":[{"id":"2","labels":["Person"],"properties":{"num":"A05"}}],"relationships":[]}} ], "stats":{ "contains_updates":false,"nodes_created":0,"nodes_deleted":0,"properties_set":0,"relationships_created":0,"relationship_deleted":0, "labels_added":0,"labels_removed":0,"indexes_added":0,"indexes_removed":0,"constraints_added":0,"constraints_removed":0 } }, "nodes":[ {"id":"0","labels":["Person"],"properties":{"num":"A08"}}, {"id":"1","labels":["Person"],"properties":{"num":"A04"}}, {"id":"2","labels":["Person"],"properties":{"num":"A05"}} ], "other":[], "relationships":[], "size":3, "stats":{ "contains_updates":false,"nodes_created":0,"nodes_deleted":0,"properties_set":0,"relationships_created":0,"relationship_deleted":0, "labels_added":0,"labels_removed":0,"indexes_added":0,"indexes_removed":0,"constraints_added":0,"constraints_removed":0 } }, "graph": { "nodeMap":{ "0":{"num":"A08"}, "1":{"num":"A04"}, "2":{"num":"A05"} }, "relationshipMap":{ "623":{"date":"5/01/2011","time":"18:11:48","case":4}, "624":{"date":"5/02/2011","time":"21:21:06","case":4}, "625":{"date":"6/03/2011","time":"21:23:35","case":4}, "629":{"date":"6/04/2011","time":"22:14:47","case":5} } } }
我使用的D3是http://bl.ocks.org/mbostock/1153292
谢谢。
答案 0 :(得分:0)
您可以使用literal maps自定义Cypher返回的输出。使用它应该可以准确地返回要交给D3的json结构。
另一种方法是使用一些应用程序端json转换,例如参见http://maxdemarzi.com/2012/10/11/hubway-data-visualization-challenge-with-neo4j/