Misaosama commented on issue #18060: URL: https://github.com/apache/echarts/issues/18060#issuecomment-1352109687
The m > Agree - _node length should be proportional to its value_. But there is a **second rule** in sankey(flow) diagrams - sums of quantities at each level should be equal. Sum at start should be equal to sum at end, otherwise the chart does not make sense. A good example of **incorrect** chart is the _Expected Behavior_ chart sample above (1.815 = 1.641 + 3.456 ?!) It turns out the **correct** equation is NetRevenue + Oper.Loss = Oper.Expenses (1.815 + 1.641 = 3.456). And here is how it looks in ECharts: [Demo Code](https://echarts.apache.org/examples/en/editor.html?c=sankey-simple&code=MYewdgzgLgBAZiEBeGAKADgQwE4EoZIB8MA3gLABQMM2AplAK7ZgxbYB0YmAtrTANQwA5AC5hAmJWrSMOTj1rtoOKBADqASygALVEIDy6WtiH4A_DAC0bdgDdMAGwZ8xN-09q4A3JQC-lEHQoDXACUikYKEQHYPQxcippJKhsDQBzNOMxIS1abiEAGgik6hT0zOx9MGzuEAYIPJBbWkLi6V8ixIbU2gh4tqgATyNsiEwwAGtaQdbE6jz0bUwIDT7SeBBgeuzMABMAK0xgWjBgGZgOtodMACNaB3iN7G5MKCgsjZALzqSGh1pgO9dgBZEC7WhiFLOH7SXavTBiADa1Da1ASJWkXF42UMxnYAFEAB5GSC9WYY6juZxiADM7AALPSAKwANhhGNy3AAykN_v 05hTQA4QNhsjcPEJUe0pZcBWipdQsRDhAA5egwABKtGaYGc5IpVOVAEZ2AAOI3skqcnmDPnhOUlIUi7JpOgnSUO6j-B2yjHoilKnFGDgAGRAEAg-oxhrEJpZ9MtSWtvOV_opMCdouEdF2HvT3oxvukAF1LQ4NJM1oipWmShA6thjtk1bAtTq9YnpFAcJkoEG8USSQ1I53KY5qSbzaOYOWwLQbXbaxjMy63WAoxTAkctIMxAAGBkKi4yztL6T1phN4S40PhkdH7vYXv9jiDk7DjdJGMwOMJo-z-cU35dNqBXbNaFzadqC3YAd33Q9PWPH1LWLCJfF8LwgA)  The mathematical value for "Oper.Loss" should be -1.641, which make the equaltion looks like "Net Revenue ($1.815) = Operting Income or Loss (-$1.641) + Oper Expenses ($3.456)". This is the actual equation and this is simiar to my example "a(100) = b(150) + c(-50)"  -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
