图表chart控件怎么改变折线上面点的颜色？？

LVGL LVGL9.x
1 
  有项目需求：图表上的拐点要求背景透明。
  自己实验想让折线图上面的点变成透明或其他颜色，发现设置不起作用。点的颜色与线的颜色无法分开。求教各位哪里设置的有问题？

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 static lv_chart_series_t *ser1;
lv_obj_t* uchart1=lv_chart_create(chart1_cotain);
        lv_chart_set_type(uchart1,LV_CHART_TYPE_LINE);//折现方式
        lv_chart_set_point_count(uchart1,80);
        lv_chart_set_range(uchart1,LV_CHART_AXIS_PRIMARY_X,0,100);
        lv_chart_set_update_mode(uchart1,LV_CHART_UPDATE_MODE_CIRCULAR);//数据更新方式
        lv_chart_set_div_line_count(uchart1,4,10);//表格网格线

        /*添加显示数据 */
        ser1=lv_chart_add_series(uchart1,lv_color_hex(0xff0000),LV_CHART_AXIS_PRIMARY_Y);

        lv_obj_set_style_line_width(uchart1,2,LV_PART_ITEMS);//设置线宽
        lv_obj_set_style_line_color(uchart1,lv_color_hex(0x008000),LV_PART_ITEMS);//不起作用

        lv_obj_set_style_size(uchart1,10,10,LV_PART_INDICATOR);//设置点大小
        lv_obj_set_style_border_width(uchart1,1,LV_PART_INDICATOR);
        lv_obj_set_style_border_color(uchart1,lv_color_hex(0x00000),LV_PART_INDICATOR);

        /*表格绘制 */
        lv_obj_add_flag(uchart1,LV_OBJ_FLAG_SEND_DRAW_TASK_EVENTS);
        lv_obj_add_event_cb(uchart1,chart1_draw_event_cb,LV_OBJ_FLAG_SEND_DRAW_TASK_EVENTS,NULL);

        /*设定一个定时器,每300ms更新表格数据 lv_timer_t *chart1Time=*/
        lv_timer_create(uchart1Time_cb,300,uchart1);

//chart1数据更新回调
static void chart1_draw_event_cb(lv_event_t *e)
{
        //lv_draw_task_t *draw_task=lv_event_get_draw_task(e);
        //lv_draw_dsc_base_t *base_dsc=lv_draw_task_get_draw_dsc(draw_task);
        lv_obj_t *obj=lv_event_get_target(e);
        //  if(base_dsc->part==LV_PART_INDICATOR)
        //  {
        //          lv_draw_rect_dsc_t *rect_draw_dsc=lv_draw_task_get_draw_dsc(draw_task);
        //          rect_draw_dsc->bg_opa=LV_OPA_100;
        //          rect_draw_dsc->bg_color=lv_color_hex(0xb37979);
        //          rect_draw_dsc->border_width=1;//设置不起作用
        //          rect_draw_dsc->border_color=lv_color_hex(0x00ff00);//设置不起作用

        //  }
        lv_chart_refresh(obj);


}
//chart1数据更新定时器回调
static void uchart1Time_cb(lv_timer_t *timer)
{
        lv_obj_t *chart=(lv_obj_t *)lv_timer_get_user_data(timer);
        lv_chart_set_next_value(chart,ser1,lv_rand(1,99));

}

设置线宽可以，设置线的颜色不行，点的颜色和线的颜色始终保持一致，怎么将线的颜色与点的颜色分开？

2

用这个可以把点隐藏 lv_obj_set_style_width(chart, 0, LV_PART_INDICATOR);
想要改颜色的话，需要在绘制函数里面改

3

能给个示例吗？这样设置后依然不起作用；

 lv_obj_set_style_size(uchart1,0,0,LV_PART_INDICATOR);//设置点大小
        //lv_obj_set_style_border_width(uchart1,1,LV_PART_INDICATOR);
        //lv_obj_set_style_border_color(uchart1,lv_color_hex(0x00000),LV_PART_INDICATOR);
/chart1数据更新回调
static void chart1_draw_event_cb(lv_event_t *e)
{
        lv_draw_task_t *draw_task=lv_event_get_draw_task(e);
        lv_draw_dsc_base_t *base_dsc=lv_draw_task_get_draw_dsc(draw_task);
        lv_obj_t *obj=lv_event_get_target(e);
         if(base_dsc->part==LV_PART_INDICATOR)
         {
                 lv_obj_set_size(base_dsc->part,10,10);
                 lv_draw_rect_dsc_t *rect_draw_dsc=lv_draw_task_get_draw_dsc(draw_task);
                 rect_draw_dsc->bg_opa=LV_OPA_100;
                 rect_draw_dsc->bg_color=lv_color_hex(0xb37979);
                 rect_draw_dsc->border_width=1;//设置不起作用
                 rect_draw_dsc->border_color=lv_color_hex(0x00ff00);//设置不起作用

         }
         
        lv_chart_refresh(obj);


}