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chart:init_points and set_points added

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This commit is contained in:
Gabor Kiss-Vamosi
2017-12-20 16:51:34 +01:00
parent d239b319ef
commit dda1a38143
3 changed files with 54 additions and 6 deletions
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29
lv_objx/lv_chart.c
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@@ -259,6 +259,35 @@ void lv_chart_set_series_darking(lv_obj_t * chart, lv_opa_t dark_eff)
ext->series.dark = dark_eff;
}
/**
* Initialize all data points with a value
* @param chart pointer to chart object
* @param ser pointer to a data series on 'chart'
* @param y the new value for all points
*/
void lv_chart_init_points(lv_obj_t * chart, lv_chart_series_t * ser, lv_coord_t y)
{
lv_chart_ext_t * ext = lv_obj_get_ext_attr(chart);
uint16_t i;
for(i = 0; i < ext->point_cnt; i++) {
ser->points[i] = y;
}
lv_chart_refresh(chart);
}
/**
* Set the value s of points from an array
* @param chart pointer to chart object
* @param ser pointer to a data series on 'chart'
* @param y_array array of 'lv_coord_t' points (with 'points count' elements )
*/
void lv_chart_set_points(lv_obj_t * chart, lv_chart_series_t * ser, lv_coord_t * y_array)
{
lv_chart_ext_t * ext = lv_obj_get_ext_attr(chart);
memcpy(ser->points, y_array, ext->point_cnt * (sizeof(lv_coord_t)));
lv_chart_refresh(chart);
}
/**
* Shift all data right and set the most right data on a data line
* @param chart pointer to chart object