lvgl_cpp/examples/widgets/chart/lv_example_chart_1.c

45 lines
1.5 KiB
C

#include "../../lv_examples.h"
#if LV_USE_CHART && LV_BUILD_EXAMPLES
void lv_example_chart_1(void)
{
/*Create a chart*/
lv_obj_t * chart;
chart = lv_chart_create(lv_scr_act());
lv_obj_set_size(chart, 200, 150);
lv_obj_center(chart);
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);
lv_chart_series_t * ser2 = lv_chart_add_series(chart, lv_palette_main(LV_PALETTE_GREEN), LV_CHART_AXIS_SECONDARY_Y);
/*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_refresh(chart); /*Required after direct set*/
}
#endif