Greetings from Syncfusion.
We have analyzed your query. As of now, we don’t have vertical spline supports, but we are having spline charts and we can do the live updates. Sowe have considered this and logged as a new feature request. We are closing this incident now and it can be tracked through our feedback portal below.
Please cast your vote to make it count. We will prioritize the features of every release based on the demands.
If you have any more specification/suggestions to the feature request, you can add it as a comment in the portal.