Fixation patterns
[Objects]

Collaboration diagram for Fixation patterns:

Fixation patterns
void	FixationCross (double x, double y, double size, double contrR, double contrG, double contrB)
	draw a colored fixation cross
void	FixationCross (double x, double y, double size, double contr)
	draw a grayscale fixation cross
void	FixationCross (double size, double contr)
	draw a grayscale fixation cross at the window center
void	FixationCross (double contr)
	draw a grayscale fixation cross of size 0.5 deg at the window center
void	FixationCross ()
	draw a 100% contrast fixation cross of size 0.5 deg at the window center