ZingChart: Can I Add An Overlay With Text To The Chart
Its the internet you can do anything. Typically you will add a chart overlay to express to the user that data is not in the chart yet, data is loading or waiting to come back from the server.
No Data
We have a built in nodata object which you can populate when the chart has no data.
Example: https://demos.zingchart.com/view/XD5WCSW6
Dealing with No Data in a Feed
For charts using our feed feature we have another object called curtain to fill in the blank space on a chart that is found as data is loaded. Try the example below to see it in action.
Example: https://demos.zingchart.com/view/NRE835AP
Custom Overlay
If neither of the two demos above fit your use case you can of course use native browser techniques to accomplish a chart overlay.
Example: https://demos.zingchart.com/view/3EWSUGBN