Function psImageSlice definition of direction

[Eric.VanAlst@…]

In SDR-01 paragraph 4.6.2, the function psImageSlice will contain either nx or ny elements based on
the value of direction. Direction is defined as TBD [+x]. What is the definition of direction for this
function?

[eugene]

let's use an enum for this. there are four options:

typedef enum {

PS_CUT_X_POS;
PS_CUT_X_NEG;
PS_CUT_Y_POS;
PS_CUT_Y_NEG;

} psImageCutDirection;