void set_text(const char *text);
char* value_to_text(double value, int use_table = 1);
double text_to_zoom(char *text, int use_table = 1);
void set_text(const char *text);
char* value_to_text(double value, int use_table = 1);
double text_to_zoom(char *text, int use_table = 1);