[Feature] Can series custom image support datazoom scaling?

[nianlun]

What problem does this feature solve?

The requirement is to display spectrum data similar to waterfall charts, support zooming, and the amount of data is huge, with hundreds of millions of levels. Currently, it is implemented with heat maps, which display slowly and cause lags in operations such as zooming. Consider loading the generated images into echarts and support zooming, but currently loading custom images does not support zooming.

What does the proposed API look like?

I hope to load a custom image that supports scaling and can align the x-axis and y-axis scales.

[helgasoft]

waterfall, heatmap, millions of images - what a chart.... beyond imagination ! 🔮

[nianlun]

@helgasoft Not millions of images, but a single image generated from millions of data