How to implement a bar chart with downward data on v9.2.0

How-to
1

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Description

What MCU/Processor/Board and compiler are you using?

lv_port_linux

What LVGL version are you using?

v9.2.0

What do you want to achieve?

like this:
Snipaste_2024-11-11_19-46-33

What have you tried so far?

https://docs.lvgl.io/master/details/widgets/chart.html#recolor-bars-based-on-their-value

- lv_chart_set_next_value(chart, ser, lv_rand(10, 90));
+ lv_chart_set_next_value(chart, ser, 0 - lv_rand(10, 90));

I tried to set a negative number, but it didn’t work

Code to reproduce

Add a code snippet which can run in the simulator. It should contain only the relevant code that compiles without errors when separated from your main code base.

The code block(s) should be formatted like:

/*You code here*/

Screenshot and/or video

If possible, add screenshots and/or videos about the current state.

2

lv_obj_set_style_transform_rotation(chart, 1800, LV_PART_MAIN);

3

After the rotate, the data is updated from left to right, is there a way to set it from right to left?

https://docs.lvgl.io/master/details/widgets/chart.html#update-modes