; NAME:
;   pixdim__define   
;
; PURPOSE:
;   defines named struct to hold dimensions of an array pixel   
;   
; INPUTS:
;   none  
; 
; KEYWORDS:
;   none  
;
; OUTPUTS:
;   none   
;
Pro pixdim__define

    ; pixdim struct holds height, width, depth of a pixel
    pixdim_structdef = {pixdim, x:0e, y:0e, z:0e}
end