GogErrorBar

typedef struct _GogErrorBar GogErrorBar;

enum GogErrorBarType

typedef enum {
	GOG_ERROR_BAR_TYPE_NONE,
	GOG_ERROR_BAR_TYPE_ABSOLUTE,
	GOG_ERROR_BAR_TYPE_RELATIVE,
	GOG_ERROR_BAR_TYPE_PERCENT
} GogErrorBarType;

enum GogErrorBarDisplay

typedef enum {
	GOG_ERROR_BAR_DISPLAY_NONE,
	GOG_ERROR_BAR_DISPLAY_POSITIVE,
	GOG_ERROR_BAR_DISPLAY_NEGATIVE,
	GOG_ERROR_BAR_DISPLAY_BOTH
} GogErrorBarDisplay;

gog_error_bar_dup ()

GogErrorBar*        gog_error_bar_dup                   (GogErrorBar const *bar);

gog_error_bar_prefs ()

gpointer            gog_error_bar_prefs                 (GogSeries *series,
                                                         char const *property,
                                                         gboolean horizontal,
                                                         GogDataAllocator *dalloc,
                                                         GOCmdContext *cc);

gog_error_bar_get_bounds ()

gboolean            gog_error_bar_get_bounds            (const GogErrorBar *bar,
                                                         int index,
                                                         double *min,
                                                         double *max);

If the value correponding to index is valid, fills min and max with the error values: -> positive_error in max. -> negative_error in min. If one of the errors is not valid or not defined, its value is set to -1.0.

Return value : FALSE if the bar->type is GOG_ERROR_BAR_TYPE_NONE or if the value is not valid, TRUE otherwise.

gog_error_bar_get_minmax ()

void                gog_error_bar_get_minmax            (const GogErrorBar *bar,
                                                         double *min,
                                                         double *max);

gog_error_bar_render ()

void                gog_error_bar_render                (const GogErrorBar *bar,
                                                         GogRenderer *rend,
                                                         GogAxisMap *x_map,
                                                         GogAxisMap *y_map,
                                                         double x,
                                                         double y,
                                                         double minus,
                                                         double plus,
                                                         gboolean horizontal);

Displays the error bar. If plus is negative, the positive side of the bar is not displayed, and if minus is negative, the negative side of the bar is not displayed. x_map and y_map are used to convert coordinates from data space to canvas coordinates. This function must not be called if gog_error_bar_get_bounds returned FALSE.

gog_error_bar_is_visible ()

gboolean            gog_error_bar_is_visible            (GogErrorBar *bar);