How to change the size of the data point on the scatter chart?

How-to
1

Description

I want to mark a certain data point with larger point, how can I change the size(radius) of the data point on the chart?

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

VisualStudio Simulator

What LVGL version are you using?

V8

What do you want to achieve?

change the size of a certain data point on the scatter chart.

What have you tried so far?

Refer to the LVGL example, I can change the color of a certain data point via
dsc->rect_dsc->bg_color = lv_color_make(0,0,255);
, but can not change the size via the way
dsc->rect_dsc->radius = 10
or
dsc->radius = 10
It is nothing changed.

Thank you for your advisement.

2

I find the way to change the size of data point.
The size of data point can be modified via modifying the draw_area :

dsc_chart->draw_area->x1 += 1;
dsc_chart->draw_area->x2 -= 1;
dsc_chart->draw_area->y1 += 1;
dsc_chart->draw_area->y2 -= 1;

The above code can decrease the size of data point, as the similar way, the size of data point can be increased as following:

dsc_chart->draw_area->x1 -= 1;
dsc_chart->draw_area->x2 += 1;
dsc_chart->draw_area->y1 -= 1;
dsc_chart->draw_area->y2 += 1;