marker_e
void marker(int x, int y, int r, marker_e type)
void markers(int n, const T* x, const T* y, T r, marker_e type)
void markers(int n, const T* x, const T* y, const T* r, marker_e type)
void markers(int n, const T* x, const T* y, const T* r, const color_type* fc, marker_e type)
void markers(int n, const T* x, const T* y, const T* r, const color_type* fc, const color_type* lc, marker_e type)