[游戏开发]LVGL 8.2.0之Line Chart

创建Line Chart控件

static void lv_example_chart_1(void)
{
    /*Create a chart*/
    lv_obj_t* chart;
    chart = lv_chart_create(lv_scr_act()); // 创建Chart对象
    lv_obj_set_size(chart, 200, 150);  // 设置大小
    lv_obj_center(chart);  //居中显示
    lv_chart_set_type(chart, LV_CHART_TYPE_LINE); /*Show lines and points too*/
/*Add two data series*/
    lv_chart_series_t* ser1 = lv_chart_add_series(chart, lv_palette_main(LV_PALETTE_RED), LV_CHART_AXIS_PRIMARY_Y); // 创建第1条chart series,设置红色
    lv_chart_series_t* ser2 = lv_chart_add_series(chart, lv_palette_main(LV_PALETTE_GREEN), LV_CHART_AXIS_SECONDARY_Y); // 创建第1条chart series,设置绿色
    /*Set the next points on 'ser1'*/
    lv_chart_set_next_value(chart, ser1, 10);
    lv_chart_set_next_value(chart, ser1, 10);
    lv_chart_set_next_value(chart, ser1, 10);
    lv_chart_set_next_value(chart, ser1, 10);
    lv_chart_set_next_value(chart, ser1, 10);
    lv_chart_set_next_value(chart, ser1, 10);
    lv_chart_set_next_value(chart, ser1, 10);
    lv_chart_set_next_value(chart, ser1, 30);
    lv_chart_set_next_value(chart, ser1, 70);
    lv_chart_set_next_value(chart, ser1, 90);
    /*Directly set points on 'ser2'*/
    ser2->y_points[0] = 90;
    ser2->y_points[1] = 70;
    ser2->y_points[2] = 65;
    ser2->y_points[3] = 65;
    ser2->y_points[4] = 65;
    ser2->y_points[5] = 65;
    ser2->y_points[6] = 65;
    ser2->y_points[7] = 65;
    ser2->y_points[8] = 65;
    ser2->y_points[9] = 65;
     lv_chart_set_axis_tick(chart, LV_CHART_AXIS_PRIMARY_Y, 5, 2,3 ,2, true, 40); // y轴tick显示,显示3个刻度值
    lv_chart_refresh(chart); /*Required after direct set*/
}

• 调用函数lv_example_chart_1，运行效果图