dataZoom data shadow is rendered incorrectly if points are not evenly spaced on time axis

[Rogach]

Version

5.2.1

Reproduction link

https://codepen.io/Rogach/pen/XWaNXpN

Steps to reproduce

Open the pen from the link, wait for it to load, compare the chart shape in the chart area with data shadow in the dataZoom component.

What is expected?

The dataZoom rendering looks similar to the chart values.

What is actually happening?

The data shadow in dataZoom is rendered as if all points are at the same distance from each other, and so the area is distorted.

Here's an image from the reproduction link for your convenience:

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