deqingli commented on issue #6555: Browser become unresponsive when sankey
chart is generated with specific data
URL:
https://github.com/apache/incubator-echarts/issues/6555#issuecomment-380347855
Hello @lisachristina1234, this problem is caused by the existence of cycles
in the original input data. The sankey diagram theoretically only supports
Directed Acyclic Graph (DAG), so the former layout algorithm treats input data
as the directed acyclic graph as default, when there is a cycle, it fall into
an infinite loop. The modified layout algorithm will traverse the node to
calculate the layout in topological order. If the cycle is judged, it will
report an error and will not be drawn.
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