bhavyakelp opened a new issue, #20174: URL: https://github.com/apache/echarts/issues/20174
### What problem does this feature solve? Hi I am wanting to create a bidirectional tree chart ( similar to a family tree), which has the root node at the center, its children below it and parents above it with each node having a fixed height and width. If I further expand my parent nodes they open upwards and if I open child node they open downwards. - If the layout is bottom : It opens the chart in bottom up direction ( upwards ) <img width="852" alt="Screenshot 2024-07-18 at 10 53 49 AM" src="https://github.com/user-attachments/assets/2150bb40-70dc-4695-a678-a8528358e8d1";> - and if the layout is top : It opens the chart in top down direction (downwards) <img width="867" alt="Screenshot 2024-07-18 at 10 53 43 AM" src="https://github.com/user-attachments/assets/2d59f96a-383e-4517-a592-76d8e780c3f7";> what I aim to do is have both of these in one single chart and create something similar to this: - with the yellow node being the root - purple being the children - green being the parent - and a expand (+)/ collapse(-) icon to toggle between expanded states  How will be able to achieve this ? I tried multiple ways but am unable to attain this behaviour....... ### What does the proposed API look like? . -- 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]
