The optional columns for tooltip and style won't help you to implement the kind of sankey diagram shown in the image.
I don't know of any general chart API that can do all this, and I suspect such charts are drawn with special purpose code that can only draw the one chart in question. Assuming it is possible, several additional code changes to the sankey chart will be required to support the new features required (i.e. arrowhead connectors, custom connector labels, node orientation angle, invisible nodes, frameless nodes, custom node contents), but it will be a while before we can get to it. On Tue, Jul 23, 2019 at 4:52 AM 剑皇一剑梦千年 <[email protected]> wrote: > [image: 搜狗截图20190723164750.png] > May I ask you a question?How do we use this Column N optional?I want to > know what I can add and how? > > [image: 搜狗截图20190723165129.png] > I would like to make a diagram for the following example. > > -- > You received this message because you are subscribed to the Google Groups > "Google Visualization API" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/google-visualization-api/e8ce6fe0-ddd3-4ef2-a754-5f9fc26f24a4%40googlegroups.com > <https://groups.google.com/d/msgid/google-visualization-api/e8ce6fe0-ddd3-4ef2-a754-5f9fc26f24a4%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- Daniel LaLiberte <https://plus.google.com/100631381223468223275?prsrc=2> [email protected] <[email protected]> Cambridge MA -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/google-visualization-api/CAOtcSJOaqfBrGL6gjTw_iQ5ureE7w8Ut_G8H95W_ttPtk4mejg%40mail.gmail.com.
